REVISIONS to Experience in a Book: Help for the Jaguar XJ-S Owner (Up Through 1999) This file documents changes made to the book from April 21, 1997 until the end of 1999. For changes from the beginning of 2000 on, see REVISION.TXT. Changes made before April 21, 1997 are not documented. This file does not list spelling corrections or other minor fixes; only substantive revisions are documented. The revisions are grouped according to the versions of the book that were uploaded to the WWW. Those who ordered a book directly from me probably received a version in between these uploads and hence ended up with a date in the middle of one of these groups. ***April 21, 1997 to June 13, 1997 *** Elaborated on John Napoli’s vacuum advance module rebuild procedure. Added info on Tilton Engineering (from Napoli) under manual transmission mod and in source list. Added Napoli’s suggestion for plugging air injection holes. Added Michael Neal’s warning regarding late model Hella relays, and Leonard L. Peake’s note regarding a service bulletin. Added Peter Morris’ speedo transducer tests. Added Phil Patton’s suggestion on window switch repair. Added Neal’s and Randy K. Wilson’s suggestions to replace rear brake rotors rather than turning them. Added Napoli’s comments on Jag mechanics’ lack of awareness of the centrifugal advance seizing problem. Added Wilson’s observation that seizing in pre-H.E. distributors is due to galling rather than gumminess. Added John Goodman’s experience on cleaning the fuel tank sump. Added subheadings under Fuel System, and rearranged things a little. Edited description of AJ6 Engineering’s large bore butterfly housings according to Roger Bywater’s input. Deleted suggestion that pre-H.E. cams were hotter than H.E., since Bywater pointed out they have the same part number. Added Bywater’s input on cam design, Jaguar’s efforts to reduce tappet noise, and measurement of valve timing. Edited mail-order butterfly mod description per Bywater’s input. Under “idle stumble”, added Bywater’s description of the purpose of the two pressure regulators. Deleted reference to AJ6’s Ram Plenum system, since Bywater says they no longer make it. Added description of AJ6’s Plus Torque Conversion (modified intake manifold). Added Bywater’s report of problems with the K&N filters. Added Bywater’s comments about variations in intake charge between cylinders. Added Bywater’s suggestion of opening up exhaust valve clearances for more torque. Added Glenn Waterfield’s procedure for overhauling the mirror switches. Revised my mirror switch replacement scheme, since Radio Shack no longer sells any suitable switches. Added Mike Morrin’s suggested substitution of Rover fan clutch for the early one-bolt type. Added David Johnson’s suggested substitution of Ford/GM fan clutch. What with all this definite data, deleted a previous oblique reference to a substitute fan clutch. Added Mike Morrin’s description of how to get the rear quarter vents apart, along with my own experience on how to rebuild the flaps underneath. Added a note about rear seat shoulder harnesses. Added note about checking for vacuum on A/C controls, based on Tom Wagner’s experience. Added an entire treatise on the Delanair MkIII air conditioning system, based on input from Martin Sellars and Stefan Knappe. Added Mike Morrin’s tips on the early A/C controls. Added English Swedish Car Spares to supplier list, from John Napoli. Added William C.W. Lamb’s suggestion for using Bon-Ami to remove windshield scratches. Added Lawrence Buja’s suggestion for annealing copper washers before reinstallation. Added Morrin’s report on an error in the Jaguar repair manual regarding early vs. late fan clutches. Added comments on rear quarterlight removal. Added a second entire VIN numbering scheme, based on input from Richard Mansell and William Noorloos. Added info on 3.54 final drive units. Added reference to Bywater’s article in Jaguar Quarterly about the D-Jetronic EFI. Added references to tech papers. Added mention of AJ6 Engineering’s own foam air filters. Added mention of Ricardo’s engine textbook. Added Haynes’ internet addresses. Added Terry Fairbrother’s input on factory tours. Revised the description of online discussion lists to reflect the new lists @jag-lovers.org. Added a description of IRC, along with the info on the #Jag- Lovers chat room. Edited the description of how to download archives. Replaced description of Nick’s WWW page with www.jag- lovers.org. Replaced comments about .023” vs. 035” injectors with Bywater’s assurance there is no such difference. Added a description of yet another kit for injector o-rings. Added Tony Gardner’s description of the Injector Inspector. Added John C. Palm’s (my brother’s) input on 16” tires used on Corvettes, Camaros, and Firebirds. Added my own description of the tool for replacing the Schrader valves on the A/C system. Added question about the drain-and-refill capacity of the GM 400. Added my experience with installing a Japanese brake fluid level switch. Added feedback about deck spoilers and body styling kits from Goodman and Michael Minglin. Added notes about the H4 headlights I purchased. Added Roger Homer’s suggestion regarding Cat Red sealant. Added Randy Wilson’s comments regarding cheap rebuilt parts. Noted that Marelli distributors still have the ventilation scheme. Added Victor Naumann’s book recommendation. Added Mike Cogswell’s comments on cam duration. Added Mack Kamna’s procedure for rebuilding emergency brakes. Added Scott Horner’s description of the Link Electro EFI system. Added Napoli’s experience installing an electric fan. Added Victor Naumann’s awesome tip about removing everything on top of the engine as one piece. Added Minglin’s reference for getting an EPA license online so you can buy R-12 refrigerant. Added Ernie Laprairie’s suggestion for Pacesetter resonators. Added Vince Chrzanowski’s source for replacement removable radio faceplates. Added Chuck Keene’s fix for lost ignition signal to ECU. Added Goodman’s report of a high-CFM electric fan in the XJR-S. While at it, consolidated electric fan info under “Cooling”. Added Scott Horner’s cold air intake system description. Added Vince Chrzanowski’s experience with a plugged vacuum sensor line. Added Roger Homer’s report on a high/low beam relay from a Torana, along with Ray Reynolds’ report of a Potter & Brumfield relay. Added John T. Horner’s recommendation for the “Genesis of the Jaguar V12” book. Added the date the last V12 was built. Added Goodman’s and Bruce Segal’s comments on later model electric fan operation. Added Scott Horner’s comments on wide “tyres”. Added Minglin’s suggestion for test wires on the alternator. Added Paul Matchok input on bookstores. Added Stefan Kjellberg’s input on bookstores. Added Ken Wallace’s and Jeffrey Gram’s info on Electromotive and Motec EFI. Added Alex Dorne’s comments on “freeze plugs”. Added Goodman’s report on later style fuel pumps. Added Bruce Segal’s and Stefan Schulz’s notes on front wheel bearings and seals. Added suggestion of using Grainger motor for small electric fan. Added William F. Trimble’s note about cold starting problems with the Digital P EFI. Revised notes on Haynes manual #478. Removed John Himes from the VIN numbering scheme credit -- apparently he didn’t send it. Added Alex Dorne’s experience with VIN numbers. Added Randy Wilson’s notes on using three-wire O2 sensors. Revised comments on the O2 sensor counter, including that it turns on the indicator in 30,000 miles rather than 60,000. Added Goodman’s info on full-flow oil cooling in all V12’s. Added Goodman’s tipe about oil cooler covers in winter. Added Goodman’s note about deck lid spoilers requiring struts to hold the boot open. Added a description of the electric auxiliary air valve, thanks to Chad Bolles and Victor Naumann. Added Goodman’s tool for pulling the head. Added part no.’s for thermostat gaskets from Robert Weiss- Malik. Added Matthias Fouquet-Lapar’s experience replacing the newer window motor with the older. Added my own description of making a replacement roller for the electric window regulator. Added Randy Wilson’s notes on the pass-through switches on the SII XJ6 and early XJ-S. Added Naumann’s comments on lubricants for window tracks. Added Naumann’s opinion that the newer window motor is better than the older. Revised the reference to the Snake Oil article. Added a guide on how to tell which ignition system you’re looking at (suggestion from someone shopping for a used XJ-S). Tried to clarify that the Marelli started in mid-1989 -- hope I didn’t miss any references. Added a section on long-term storage. Added Mark West’s and Chad Bolles’ comments on windshield replacement. Added note on the configuration of the upper corners of the windshield seal. Added Minglin’s tip for a device to hold an elevated RPM. Added Connie Vloutely’s tip for a suitable headlight warning chime. Added TF Purifiner’s England address. Added e-mail address for Metro Moulded Products. Added descriptions of different XJ12 body styles. Added address for Magneti Marelli. Added John J. Lynch’s report on Marelli crank sensor failure. Added Randy Wilson’s comments on Marelli distributor positioning. Added William C.W. Lamb’s and Roger Homer’s note on noisy wheel center cap logos. Added John Bertsche’s tip for attaching a turkey baster to your shop vac. Added Brian Schreurs’ report on a cool brake bleeder screw. Added procedure for replacing hoses on fuel rail. Deleted suggestions for rebuilding oil pressure relief valve; it apparently didn’t apply to the V12, it was intended for the XK 6-cylinder, the V12 assembly doesn’t come apart. Added notes on main relay and feedback monitor relay. Added some elaboration on the “Blazer” driving lights from Wal-Mart. Added tips on replacing the windshield washer pump. Added tip on finding fibreoptic unit light bulb. Noted error on cigar lighter bulb wattage in Jag manual. Added Greg Maddison’s tip on visually checking the front cat. Added Maddison’s experience on cat meltdown. Added tip from Gerald Foster regarding the noises plugged cats make. Added Michael Minglin’s tip on passing emissions tests. Added Minglin’s tip for making a specially shaped wrench for the downpipe nuts. Added Thomas Alberts’ source for the long manifold nuts. ***June 13, 1997 to September 6, 1997*** Added recommendation for Bywater’s EFI book. Wrote an editorial on spade connector insulators. Wrote about repairing the fan relay pack. Reported on A/C schematic error on fan resistor pack. Revised illustration of blower resistor pack (GS wire). Added John Napoli’s comments on coked air injection systems. Added Harry Trafford’s experience using alcohol to pass emissions test. Added Trafford’s comments on the Gunson’s Gastester. Added Don Marlin’s tip on the Kelly Blue Book page. Changed my area code from 904 to 850. Added Jim McGuinn’s tip on shorted fog lights. Added Delanair MkIII vacuum schematics from Victor Naumann. Added Napoli’s tip for using an adjustable Chevy advance module from Jeg’s when rebuilding the Jag unit. Added Mike Wilson’s notes that the seat mountings had changed by 1990 -- there are no longer two sets of mounting holes, and the outer rear nut is not “loose”. Added Rob Westcott’s description of Griot’s Garage to the supplier list. Added Wilson’s tip that Griot’s offers a ramp extension kit. Added Wilson’s report on the Jaguar drivers manual recommending the use of Barr’s Leaks. Added Wilson’s note on wiring diagrams. Added comments on “XJ-S” vs. “XJS” and Daimler. Changed the download site URL to reflect the WWW page at jag-lovers.net. Added Sandy Gibbs’ and Thomas Alberts’ report on plastic GM400 accumulator failures. Revised the price for Jim Isbell’s XJ6 book from $15 to $20. Added a note on the Clamp-It, a tool for wrapping wire to clamp hoses. Added warning not to buy thermostats lacking the bypass disk. Added suggestion for using vacuum cleaner and coathanger to clean space between radiator and condenser. Added Alex Dorne’s tip about the Saab 900 Turbo electric fan. Deleted the suggestion of the Grainger motor for electric fan replacement -- it was too complicated. Deleted a comment by John Goodman about relays controlling the electric fan; wasn’t sure it was correct. Added elaboration from Jan Wikström about the diff mounting bolt problems. Rearranged the Suspension and Steering section and added subheadings. Added Dan Jensen’s report on turning radius limiters on the newer steering racks. Deleted a suggestion to use a signal straight from one Marelli ignition coil to operate the EFI ECU. Apparently, this is an unreliable fix, and may not work at all in most cases. Added tips on modifying the center A/C vent, with input from Peter Cohen, Emile A. Des Roches, Franck Guilloteau, Dean Gosselin, and Dan Jensen. Added some info on XJ-S books. Added Peter Cohen’s experiences on replacing the front oil seal. Added production numbers supplied by John Ratcliff. Added LaRue Boyce’s tip on ABS brake sensors/loose wheel bearings. Added Mike Morrin’s tip for replacing the A/C amp with a DPDT switch. Reorganized the ignition system section a little bit. Revised the price for shipping the book to countries outside the US and Canada. Added listing for Erebuni Corp. from Brian F. Schreurs. Added listing for Koenig from Phil Stuart. Added John Goodman’s notes on Double S exhaust manufacturers. Added note that the 115-amp alternator uses a flat multi- groove belt. Added my new street address. Added H.D. Rogers & Sons WWW URL, corrected their e-mail address, and revised the description of their services. Added Peter Smith’s tip on reversing the spacer when replacing the front seal. Added Dan Jensen’s experience with a fractured split cone. Added Greg Guillaume’s tip for using a 1” chisel to get a stuck woodruff key out of the crank. Added the part number for the front seal and spacer, from Matthias Fouquet-Lapar. Added Matthias Fouquet-Lapar’s and Brian Sherwood’s notes that the radiator doesn’t need to come out to replace the front seal. Added David Johnson’s report on incorrect vent connections on the H&E Convertible. Revised the description of the vapor recovery system, adding some guidelines from Dave Johnson. Revised the discussion on exhaust downpipe nuts. Added Samuel J. Louw’s antenna repair. Added the archive WWW site URL. Added Michael Minglin’s description of the Alldata CD-ROM. Added info on Car Care Specialties from Gene Halaburt. Added tips on dual coils from Roger Bywater and John Goodman. Added comments on a freon system sealer and port leaks from Michael Minglin. Added Bruce Segal’s tip on repairing the cruise control ECU. Added Pat Johnson’s and Harry Trafford’s experiences on fixing the A pillar drains. Added Stefan Schulz’s note that his steering rack has no grease fitting. Revised the list of ECU part numbers. Added Robbin Lewis’ tip on DieHard batteries. Added section on long life coolant with input from Peter Cohen and Jim Belkoff. Added notes on motormouse seat belts from John Alexander and John S. Whitford. Added Peyton Gill’s input on a Ford throttle pot. Added Paul Bachman’s tip for repairing pots with gold foil. Added Bywater’s tip for using a wirewound pot mounted on the air filter housing. Added my own description of fabricating a new wiper for the throttle pot. Added a description of the overrun valves, and a tip from Roger Bywater on adjusting them. Took a section on adjusting the idle mixture out of the modifications section, edited it to reflect Bywater’s input, and put it under the EFI - Digital P section. Added Rob Weiss-Malik’s lengthy tirade on getting the thermostats to seat properly. Added Lynx Motors to supplier list. Noted Bywater’s concern with incorrectly installed rear main seals causing bearing failure. ***September 7, 1997 to January 2, 1998*** Added a mess of tips on stainless steel wire. Added tip from Peter Smith for using original Jag parts to replace the air pump. Revised the section on 5-speed installation, based on info provided by Mike Frank. Added note on Jaguar Enthusiast article on water leaks, sent by Mike Frank. Corrected and added to Bruce Segal's input on repairing the cruise control ECU. Added some history on EFI, ignition, and cooling concerns from Roger Bywater. Added a tip from John Napoli about flushing out Barr’s Leaks. Revised suggestion for running A/C control servo while adjusting flaps. Added my own description of cruise control surging problems due to a tired ignition switch. Deleted the “Unanswered Questions” page in entirety. Added Val Danilov’s note that his vacuum advance module was rigid rather than blown. Added Danilov’s suggestion to beat a Chevy part with a hammer. Decided the vacuum advance module rebuild procedure was too complex and offered too many alternatives, and rewrote the whole thing in my own words. Added Danilov’s tip on modifying a generic porous bronze thrust washer to make a “thingy”. Added Lenny Berk’s tips on replacing the coolant crossover pipe. Added Dan Jensen’s suggestion to not rebuild a water pump, but to simply purchase a rebuilt pump instead. Added Jensen’s suggestion to use nyloc nuts on the fan clutch. Added the Gardner/Napoli mods, along with the suggestion to use a single switch from Tom Bernett. Added note about replacing the switch on the pedal housing with a microswitch in the footwell to avoid the blown transistors caused by internal shorts. Added tip on identifying the suspect transistors. Added note on cruise control ECU part numbers. Added Rusty Beard’s notes on low-cost 3-wire Lambda sensors. Added Richard Mansell’s report on the 1992 deletion of the fuel cooler. Added Mansell’s report on the 1992 change in fuel injectors. Added Mansell’s report on the 1992 change in cruise control. Added Mansell’s report on the 1992 change in spark plugs. Added Mansell’s report on the 1992 change in Marelli software. Added Mansell’s report on the 1992 change to the 26CU ECU. Added note that 6CU and 16CU are interchangeable. Added Mansell’s report on the 1992 change to the A/C temp sensor. Added Mansell’s report on the 1992 relocation of the kickdown switch. Added Paul Bachman’s tip for installing a garage door opener in the console. Removed listing for David Manners, since they practice spamming on the Internet and deserve to be boycotted. Removed listing for Colin Webb, too -- reportedly bought out by David Manners. Added Peyton Gill’s experience on air intake mods. Added tips on lubricating the antenna from Michael Minglin and Hal Rogers. Added Peter Cohen’s tips on Goodyear radiator hoses. Added John Napoli’s tips on replacement crossover pipe hoses. Added Harry Trafford’s tips on fancy water hoses. Added Andrew Weinberg’s tip on VW brake reservoir hose. Added Matthias Fouquet-Lapar’s note that BMW dealers carry suitable brake reservoir hose. Added Greg Price’s tip that XJ6’s and Mercedes use good EFI hose clamps. Added Stefan Schulz’s comments on EFI hose clamps. Added Schulz’s tip on power steering hose chafing. Made some notes about ECU interchangeability. Added Mike Morrin’s listing of pre-H.E. distributors. Added guidance on bedding in brakes, from Allan Charlton and Peter Cohen. Added Craig Waterman’s experience with a boot light staying on. Added Mike Morrin’s tips on the canister oil filter. Added Samuel Louw’s lengthy diatribe on the center A/C vent replacement. Added Jim Belkoff’s info on spark plug wire sets. Added John Smith’s data on spark plug wire lengths. Added info from Chad Bolles on the one-piece rear oil seal. Added info on the electric rear windows on the convertible from Trish Duffy and Andrew Corkan. Added Napoli’s tip on routing wires through the firewall. Added Val Danilov’s guidance on repairing the oil pressure gauge. Added Mike Morrin’s tip on accelerator pedal revisions. Added John Nuttall’s experience on pre-H.E. distributor advance curves. Added a description of the feedback monitor socket and how to use it to adjust the idle mixture. Added my own experience on removing the bumpers. Added Glen E. MacDonald’s submission on replacing the mirror switches with a 3-switch scheme, including creating a new graphic. Added Simon Gray’s and Matt Dillon’s notes on rats eating the wiring. Added MacDonald’s tip on repairing K&N air filters. Added a couple tips on changing oil. Found that the leaper was discussed in two different places, so deleted one. Actually reread the entire book myself, in an effort to clean up typos and the like. Added Emile A. Des Roches’ tip for avoiding watermarks under the door mirrors. Added Bill Frenchu’s tips on finding ss wire. Added Dean Gosselin’s info on brake squeal. Added an entry on pinging, with input from Mike Wilson and Joe Ziehl. Added info on 85 mph speedometers from Randy K. Wilson, John Napoli and David Berman. Added a note about the S1002 training manual for the A/C system. Added Thomas E. Alberts’ warning not to damage the heater valve when lowering the tranny. Added William F Trimble’s report on grounding problems damaging the shifter cable. Added Bywater’s treatise on misfires causing cat meltdowns and fires. Added Peyton Gill’s and Julian Mullaney’s reports on fires caused by ignition wires against fuel lines. Added the two above items to the list of highly recommended reading at the front of the book. Added the tip about using a block of wood to hold the A/C compressor while working in the area. Expanded Mike Morrin’s report on fixing a pot in the A/C system. Added Morrin’s comment on the in-car sensor pulling loose. Added Tom Bernett’s description of a full-heat failure mode. Added LaRue Boyce’s warning about aftermarket cats. Replaced my bad ASCII art with a real graphic on the window regulator roller replacement scheme. Added a brief synopsis of the cabriolet from David L. French. Added Julian Mullaney’s description of stiffening ladders under the Cabriolet. Added Michael Minglin’s experience with the John’s Cars GM alternator mount. Added Marty Sullivan’s suggestion of installing hood vents from a 280Z. Added Greg Price’s experience on replacing the heater core. Added Greg J. Maddison’s tip on rebuild cats. Added Randy K. Wilson’s info on seat rail spacing. Added Bill Trimble’s tip for repairing the cruise control cable attachment. Added several descriptions of the XJR-S from John Goodman. Added Scott Horner’s description of bumpers. Added Stephen Wood’s tip on using GM window switches. ***January 2, 1998 to March 11, 1998*** Revised window drive roller illustration to include the pins. Added Derek Spicer’s tip on Honda Accord hood vents. Added Paul Bachman’s tip on 1988 Turbo Thunderbird hood vents. Added Stephen Wood’s notes on several types of hood vents. Revised Hydro-E-Lectric to Auto Book Center per phone call from the business owner, and added the address and local phone number. Changed my new address from 71 Jeffrey Street to 3 Wanda’s Way. Added Ron White’s tip for finding replacement seat diaphrams. Added Alex Dorne’s clarification that the front oil seal sleeve is not keyed. Added HP/Torque ratings from Brian Schreurs. Added Daniel Pontes’ tip on troubleshooting and replacing the fan belt idler pulley bearing. Added more info on the idler pulley and arm from Bernie Embden and Mike Morrin. Noted that the XJ40 heater control valve has a 1/4” vacuum hose connection. Added description of H&E Convertible from Mike Cogswell. Added Mike Morrin’s warning that the brake warning light being on may be due to stuck handbrake adjusters. Added notes on black paint on taillight lenses from Mike Morrin and David Cleary. Added a few words about the leaper. Added Mike Wilson’s notes on the Marelli ignition maps. Added description of the Lister XJ-S from Peter Cohen and Brian Schreurs. Added info on the CPI Value Guide from Mike Wilson. Added Derek Hibbs’ report on installing a Crane Cams ignition system. Added Steve Douglass’s note about an Allison ignition system. Added Peter Cohen’s report on the lack of 1991 cars in California. Added JaguarSport shift point data from Richard Mansell. Added acceleration data for AJ6 mods. Added some more elaboration on JaguarSport XJR-S stuff from John Goodman. Added tips on reducing power steering assist, including XJR-S parts listed by John Goodman. Added Goodman’s report on an improved diff breather. Added note on hood latches. Added John Napoli’s cool hood opening modification. Added my own tips for making license tag light lenses. Added the Sylvania headlight web site. Revised the steering rack mount drawing so it’s more legible. Revised the bearing cap sealing drawing for better accuracy and to make it look prettier. Rotated three headlight wiring schematics 90 degrees (the way they were originally intended). Added Jeff Elmore’s tip on a place that overhauls distributors. Added Mark Whitnell’s report on a bad connector in the ignition system. Added notes on the Le Mans, Insignia, and Rouge Editions as well as JaguarSport and SportsPack from Brian Schreurs, Richard Mansell and John Goodman. Added info on Just Jaguars from Patrick O'Keeffe. Added tip on rotating the radius arm bushings 90 degrees. Added some info on XJR-S GM400’s from Goodman. Added engine fire recall info from Ron White. Added info on Jaguar fog light kits from Bill Kubida. Added some comments on HID headlights. Added Matt Dillon’s fix for the wooden ski slope. Consolidated the changes to the interior for 1988. Added suggestion to replace early plastic door sills with metal, with parts list from Richard Mansell. Mentioned Autostyle’s XJSS kit, with info from Pat_O'Keeffe. Added John Himes’ tip on front hub disassembly. Added Michael Minglin’s tip on an online A/C discussion site. Added Matt Dillon’s idea for cleaning the space in front of the radiator. Added Peter French’s experience with faulty EFI trigger unit connectors. Added Dave Johnson’s note that the H&E convertible top is fabric, while the Jag convertible tops are plastic. Added John Nuttall’s tips on looking for rust. Added Dale Knaus’ tip on using a slug wrench on the front pulley bolt. Added a section on dealing with the spring while working on the lower ball joints, including a tip from Dale Knaus. Added Jim Isbell’s warning on checking ignition coils with an ohmmeter. Deleted what was apparently an obsolete address for Paul Banham. Added some warnings about dealing with Autostyle. Added Matthias Fouquet-Lapar’s tip on holding brake rotors in a vice. Added Jeff Elmore’s tip on substitute crossover pipe hoses, along with notes on straight vs. 45 degree bent versions. Revised transmission mount drawing to show where washers might have been added. Added Matthias Fouquet-Lapar’s quote from Jaguar World regarding a head-pulling tool. Added David Littlefield’s method for replacing throttle linkage bushings. Added Larry Barnes’ source for hood struts. Reorganized the section on electric windows to reflect the three types of motor used. Added Steven Draper’s tip on fixing ‘88-89 window motors. Added Steve Cohen’s extensive description of refitting the Bosch window motors to an ’89. Added lots of stuff on tires, from Peter Cohen, David Littlefield, and Bill Weismann. Added Nathaniel Musselman’s remorse about JaguarSport now being Aston Martin. Deleted JS’s phone number. Added R.E.S. to source listing. Added Jeff Elmore’s alternative throttle bushing fix. Added John Napoli’s really pathetic throttle bushing fix. Added Mike Morrin’s extensive report on the early wiper motor. Added Scott Horner’s tip on replacing the early wiper motor with the later Lucas unit. Added Morrin’s report that Bill White is working on a DOHC V12. Added description of how to make a spark plug wrench. Added a tip about using a “distributor wrench” on the manifold/downpipe nuts. Added Michael Bucklew’s tip for finding coolant leaks. Added David Littlefield’s reasoning for the steel washers in the front shock attachments. Added a section on tire pressures, with input from John Goodman. Added headlight www site from Nathaniel Musselman. Added Mike Morrin’s fix for the vacuum check valve. Added Peter Cohen’s report on electric fan switches. Added Alex Dorne’s note on the washer pump. Added David Littlefield’s tip on testing O2 sensors. Added suggestion for simple timing chain replacement. Added Jan Wikström’s note on valve spring compressors. Rearranged the engine section a little bit. Added Wikström’s note on lubricating the throttle linkage. Added Stephen Wood’s tirade on MTBE. Added Michael Minglin’s tip for monitoring system voltage. Added Minglin’s note on his beefed-up Delco alternator. Added Paul Bachman’s tip on lubricating windows. Added Larry Barnes’ tip for repairing window motors. Added Danny Rearden’s procedure for renovating caps and rotors. Added Hunt Dabney’s tip on protecting the A/C servo from water damage. Added info on Kleen Wheels from Ed Avis. Revised listing for Paul’s Discount Jaguar Parts per Avis. Added Avis’ tip on license tag lens repair. Added tips on replacing the side marker bulbs, and rearranged the whole bulb replacement section a bit. Talked about stainless steel fasteners. Mentioned British Auto USA’s diff gasket. Added listing for Cathouse Spares in Sydney. Added Mark Jackson’s tip on an aftermarket stainless steel cross pipe. Added listing for HobbyLink Japan. Added note on chrome wheel arches, with input from John Dyson. Added Peter Cohen’s note on clearly labelled conversions. Elaborated on the painted panels on the taillight lens. Added info on light bulbs from a visit to my local NAPA dealer. Added tip on door linkage clips. When actually doing the mod on my own car, realized the window motor relay scheme was more complicated than necessary, and simplified the diagram. Then added lots more info on the mod, including tips on the circuit breaker and notes about the wiring being hot all the time -- and lots more complication to the diagram. Added a comment about fixing bad grounds. Added warnings about cat fires caused by Marelli cars running on six cylinders, with input from LaRue Boyce and Randy Wilson. Added warning about cat fires caused by sensor problems from Greg J. Maddison. Updated info on Rau Restoration, with input from Bill Rau. Moved the entire discussion on cat fires from the exhaust system section to the Marelli ignition system section. The whole thing had ended up being a discussion of Marelli problems. Added tips on how to tell genuine Marelli caps and rotors from the impostors, with input from Randy Wilson, Greg Maddison and LaRue Boyce. Added suggestions for modifying aftermarket caps and rotors to render them usable, with help from Mike Morrin. Added note that Griot’s Garage carries Speed Bleeders. Revised headlight wiring diagram for all six lights to correct a typo. Added some tips on the electric door mirrors. Added a description of the early oblong headlights from Mike Morrin. Added description of adding the ‘92-on grille to earlier cars. Revised the section on headlight relays extensively. Added instructions on properly connecting the vent lines to the top of the left side butterfly housing. Added Michael Aiken’s tip about relocating the air pump wastegate outlet. Added Napoli’s comment that the best alternator is the one that’s common in your area. Added comment about plug gaps. Added Robert Gee’s warnings against aftermarket EFI systems. Added Chris Sleeman’s report on a twin turbo V12. ***March 12, 1998 to August 19, 1998*** Added a note that the 100/55W H4 bulbs may be an excellent choice for UK cars with the dimmed dip running lights. Rearranged the heatlight souping-up section a little. Added a couple of ideas for rewiring the headlight operation with tips from John Napoli -- but didn’t provide wiring diagrams. Added Paul Hackbart’s tip for using the dipstick to find the engine number. Added John Himes’ description of his headlight switch. Added John Goodman’s idea for using the headlight washer pump to spray the windshield. Added Richard Mansell’s info that the single windshield sprayer was replaced by two separate sprayers in 1987-1/2. Got Michael Aines’ full name where it belongs. Revised the discussion on centrifugal advance mechanisms slightly, making the regular lubrication its own section. Added David Littlefield’s tip on generic bushings for the front shock absorbers. Added Gunnar Helliesen’s comment about Monroe shocks, and Nick Johannessen’s listing of part numbers. Added Matthias Fouquet-Lapar’s note that Bilstein is online. Added Emile A. DesRoches’ description of the Carello headlights. Deleted the tip about Hella “DOT approved” HB2 headlights; they apparently don’t make a set that will fit the XJ-S. Added more complete description of the ss exhaust pipe tips offered by J. C. Whitney. Added note about J. C. Whitney catalog numbers. Added J. C. Whitney’s WWW URL. Added tip about 15W festoon bulbs at marine supply stores. Added note about J. C. Whitney’s halogen 1157 bulbs. Added tip on Griot’s headlight shields. Added notes from Roger Bywater on using unleaded fuel. Added Bywater’s description of early 3.6 problems and AJ6 Engineering’s fix. Corrected the www URL on the flyer page, thanks to Vaughan Bromfield pointing out the error. Replaced my functional but lame cover page with the far more stylish version generously provided by Glen MacDonald. Revised the flyer page to match. Rick Goldsmith sent me pix of his car which made it clear I misunderstood the design of the Carello headlights, so I revised a coupla things accordingly. Added info on Carello headlights from Emile A. DesRoches, as well as his experience with “blue bulbs”. Lightened up on the discussion of the Napoli mod. Revised the description of the throttle linkage bushing replacement, as suggested by Napoli. Added John Smith’s ingenious reuse of a light switch for the Gardner/Napoli mods. Added Larry Barnes’ report on fixing window motors on the ’92 convertible. Revised the section on the A/C blower relays a bit. Added Julian Mullaney’s report on the failure of a genuine Marelli rotor, and revised the whole section on cat fires somewhat -- including moving parts of it back to the exhaust section. Added ideas on sensors and warnings of cat fires with input from Andrew Corkan, Michael Aiken, and Richard Mansell. Added Julian Mullaney’s description of running on six cylinders. Added e-mail address and fax number for SICP. Rearranged the section on headlight upgrades a bit, adding info on xenon bulbs from Nathaniel Musselman and David Hendon. Added Andrew Corkan’s circuit diagram for ignition failure monitoring, and revised some other parts of the section accordingly. Added John Arthur’s idea for wiring thermocouples together to compare temps in the cats, as well as Matthias Fouquet-Lapar’s objections to the idea. Added cat temperature guidelines sent by Bob Gallivan. Moved the discussion on monitoring cat temperatures to the exhaust section. Revised the suggestion to pot the Marelli distributor rotor with a whole bunch of input from Julian Mullaney, Mike Morrin, and Andrew Corkan. I put everything in there, since at this point there’s no actual experience to say what works and what doesn’t. Incorporated an update to Corkan’s schematic. Added entry for Motorcars, Ltd. in Houston per David Littlefield. Put J. C. Whitney in alphabetical order. Added Emile A. DesRoches’ and John Napoli’s input on fire extinguishing systems. Separated the handbrake into its own subsection and added comments about not adjusting the cable. Added Bill Freeman’s idea of replacing the Marelli ignition system entirely. Added tips on keeping cats off the car from Peter Cohen, Chuck Wood, David Danvers and Stefan Schulz. Revised the description of the throttle linkage adjustments slightly. Changed my mailing address to 3 Wanda’s Way. Added suggestion for sun shades to protect wood trim. Added tip for making instrument cluster snap-on covers snap properly. Added Rob Ward’s tip on replacing the headliner. Added Leslie Winfield’s tip for replacing throttle linkage bushings. Rewrote and reorganized the headlight improvement section and added a bunch of stuff based on Daniel Stern’s input. Added John Warr’s opinion of US headlights. Added Mark Sampson’s experience with a bad battery causing hesitation. Added Lee Opausky’s report on bad advice from a dealer on cracked fans, along with Mark D. Stoner’s experience on what happens when the fan comes apart. Added comment about binding the Repair Operation Manual. Clarified the difference between the Repair Operation Manual and the multi-volume shop manual. Added suggestion that amateur tinkerers get a general primer on auto repairs. Added tips from Julian Mullaney and Andrew Corkan on providing access to the rear window motor on the convertible. Added Richard Chapman’s tip on leaking fuel pressure regulators. Added Sean Straw’s notes on multiple fuses for the radio. Removed a lot of the Internet primer stuff; this book isn’t intended to teach people how to get online. Removed Paul Taylor from the source list, since Rob Ward reported he had passed away. Raised the surcharge for overseas shipping from $10 to $14. Revised the note on the fuel rail recall to clarify that only the H.E. got square tubing, the pre-H.E. still has round tubing. Added a section on the radiator drain plug, with help from Tony Bryant. Revised the section on replacing the belt-driven fan with an electric fan, with help from Peter Cohen. Corrected/deleted some supplier listings with input from Sean Straw. Added a treatise on alignment, complete with an illustration of Jaguar tool JD.25 with a dimension provided by Michel Carpentier. Added a scheme for making the electric radiator fan run 10 minutes after engine shutoff from Mike Aiken. Then I went and added an entire section in the modifications section regarding post-shutdown cooling schemes, and moved a couple things from elsewhere in the book into it. Added Michel Carpentier’s report that his blue diode pack operates the headlight wash/wipe rather than the cooling fan, and the diodes for the cooling fan are hidden in the harness. Added a few words to the flyer page and to the “Help with Advertising” epilogue in an attempt to address the continuing problem with people sending checks for the wrong amount. Combined several sections on headlight control schemes into one section under “Modifications”, and deleted a lot of stuff; basically, not going into any detail in headlight rewiring ideas any more. Removed Lawrence Buja’s tip on annealing copper washers, since it doesn’t apply well to the XJ-S. Added recommendation to remove the radiator top rail and clean out the chamber between the radiator and the A/C condenser EVERY time the coolant is changed. Revised the comments on injector seal kits, and added a couple more part numbers. Added a tip on seal washers for the fittings on top of the radiator. Added David Johnson’s report on the correct size O-ring for distributor rotor retention. Added Andy Hutchinson’s report on O-ring materials, and established a section on O-rings. Added the P/N for the updated intake manifold gaskets. Added my own experience on cam cover bolts. Moved the belt-driven fan replacement with an electric fan to the Modifications section. Added a sketch showing how to make timing chain tensioner release tools and revised the section a bit. Added several tips and corrections to the head removal section. Added a tip on modifying the tappet block banjo bolts for better oil flow, along with a graphic. Added Mark Jackson’s tip on a source for SS header tanks. Added some size info for the washer and O-ring distributor retention. Specified how to lubricate the distributor on reassembly. Added a suggestion to provide a felt plug in the distributor, or a cotton ball. Added tip about removing the tappets with a magnet. Added tip about installing valve adjusting pads with the letter facing outward. Added suggestion to measure valve clearances on disassembly. Added suggestions for torquing bolts on tappet block. Added a graphic showing how to properly install the “thingy” in the distributor. Expanded the instructions for distributor disassembly, including warnings about stretching the advance springs. Added tips for fixing the distributor ventilation scheme. Added Greg Benjock’s report on Belden plug wires from NAPA. Changed Lucas Aftermarket phone number. Added note about pollen filters. Added Bywater’s explanation of the H.E.’s exhaust limitations. Noted that steering column work isn’t necessary when pulling the starter from a LHD car. Added David Johnson’s note that the upper starter bolt has a 12-point head. Added Gerald Foster’s recommendation for a Sears valve spring compressor. Added tip about coolant level sensors. Added some part numbers for radiator hoses. Added Roger Bywater’s comments on revving the V12. Added Napoli’s mod to the Gardner mod. Added Herman Green’s windshield wiper fix. Added better description of where freeze plugs are on each head. Added the idea for resealing the liners to the block from above, with David Johnson’s experience. Added some ideas for replacing liners, piston rings and pistons without removing the oil pan. Added instructions for making and using a compact head pulling tool, complete with a drawing. Added another idea for making a “thingy”. Removed suggestion for using door hinge bushings on the throttle linkage; most such bushings are the wrong size, and I haven’t found any that will work. Cross-referenced the throttle linkage bushings and the thingy replacement, since they require the same diameter bushings. Added suggestions on torquing head nuts. Added info on Gano radiator hose filters. Added suggestion for heater hose filter. Added section on teflon valve stem seals, thanks to Michel Carpentier. Added note on ECU fuel pump control circuit failure. Added Harry Trafford’s report on the wrong battery rusting his trunk. Added info on replacing the copper washers on the big banjo fitting at the rear of the V. Added recommendation on replacing head stud washers. Revised advice on spark plug indexing, based on being able to actually look at a head off the car. Added suggestion for Opus system to put engine at TDC before removing distributor. Mentioned that aftermarket ignition systems may make it difficult to remove the distributor as a unit. Added an extensive discussion and a graphic on using Loctite sealants for the tappet block with input from Craig Sawyers, and deleted the suggestion from Michael Neal to use Hylosil. Added note that many studs went metric in 1984. Added tip to flatten water manifold blank-off covers before reinstalling. Added suggestion to order cam sprocket lock plates while ordering head gasket set. Added note on molded heater hose. Added Malcolm Scott’s, Richard Chapman’s, and John Napoli’s ideas for removing stuck heads. Added David Johnson’s tip on making sure the timing chain is on the hook when the head is installed. Added notes on removing the heads with the engine in the car with help from Johnson. Edited the entry for Engel Imports a bit. Deleted the note about JCNA’s suppliers list. Haven’t heard any good words on it in years. Added note on replacement seals for the oil pressure sender, the adjacent banjo fitting, and the EGR port. Added notes on leaky oil pressure senders and switches, with a note from David Johnson. Added the idea of replacing the Marelli distributor with dual 6-cyl distributors, with Mike Morrin’s trivia input. Changed the phone number for Dellow with input from John Littler. Added David Johnson’s suggestion to find closed-end crowfoot wrenches. Revised guidance on R&R’ing the A/C compressor. Added ideas for sealing the dipstick tube. Revised some words on the heater control valve replacement. Added tip for removing the rear cam bearing studs when removing the heads. Added note on cam cover bolts. Added suggestion for cleaning out coolant pockets while heads are off, with input from David Johnson. Added a whole list of substances for loosening up the crud in head stud holes, with input from John Warr, Craig Sawyers, Mike Morrin, and Karsten Eller. Added note on top hat seal reuse. Added David Johnson’s substitute for spiral groove washers. ***August 19, 1998 to September 9, 1998*** Added suggestion to trim the valley cover gasket. Revised comments on thermostat housing gaskets. Added tip regarding fiber washers for banjo bolts. Noted that early distributors didn’t have a thingy. Added possibility of using graphite to lubricate the distributor. Added David Littlefield’s tips on adjusting the distributor pickup gap. Added Richard Chapman’s report on a loose part in the distributor. Divided the Word97 document into “sections”, which means each section -- “Maintenance”, “Modifications”, etc., should start on an odd-numbered page. Revised discussion of replacing fuel injector hoses. Moved the discussion on SS safety wire to the “General” section. Added notes on pintle cap replacement from Paul Hackbart and Richard Chapman. Added tip on reversing fuel injectors. Corrected a gross misunderstanding of the pre-H.E. distributor advance charts, thanks to Roger Bywater. Added suggestion for a set of bent feeler gauges. Added info on the resistors in the ign amp from Walter Petermann and Craig Sawyers. Added the test of pouring cold water on the ign amp. Added Coolfilter data from Peter Smith. Added details on sealing around the radiator with foam. Deleted Michael Neal’s comments on replacing intake manifold gaskets, since I believe it was meant for the earlier design gaskets rather than the later one-piece gasket. Made an effort to apply some organization to the “Engine” section, resulting in a total rearrangement, including moving a couple paragraphs to the “Modifications” section. Added an extensive discussion on the cam cover gasket and half moon seal, including John Napoli’s Marine Tex fix and my own aluminum plug fix. Added the design for an aluminum plug for the timing chain tensioner access hole. Added mention of Magnecor’s web site. Changed the section on doing piston and liner work from above, from Mike Morrin’s report on looking at the parts. Raised the price of the printout from $25 to $40. ***September 9, 1998 to September 23, 1998*** Added tip for using 3/4” hammer drive anchors in the intake manifolds instead of 1”. Revised the section on ignition amp repair based on the disassembly of my own and input from David Johnson and Peyton Gill. Added David Johnson’s experience with a plugged banjo bolt on the radiator air bleed system. Added credits for Ron Morse’s fine machining work on some plugs. Added a description of Andy Klopfenstein’s fried Marelli distributor cap. Added Klopfenstein’s report that the design of the aftermarket Marelli cap has been improved. Separated the discussion of aftermarket Marelli distributor cap problems from the discussion of aftermarket Marelli rotor problems. Added note that the A/C stub ducts are removable. Added Steve Kennedy’s note on changing tranny fluid. Added Richard Chapman’s tip on draining tranny fluid. Changed an incorrect comment about EGR ports. Removed my own home page URL and e-mail address in anticipation of GadComm ceasing operation. Added note about XK’s Unlimited’s Stat-O-Seal washers. ***September 23, 1998 to March 11, 1999*** Elaborated on oxygen sensor replacement a bit. Added my new e-mail address to flyer page. Corrected URL on XJ6 flyer page. Added an idea for upgrading the older style aftermarket Marelli distributor cap. Added listing for Leatherique. Added Gregory Wells’ note on fuel level transmitters. Revised comments about the ROM a little bit. Added Jason Philbrook’s experience with a rubbing heater hose. Added all I know about the distributorless ignition system - - two sentences from Chad Bolles. Added Walt Osborn’s description of varnish causing stuck valves. Added listing for Vintage Jag Works. Added instructions for subscribing to Walt’s Jaguar Tip of the Week. Corrected the URL for Daniel Stern’s headlight web site. Added Craig Sawyers’ note on front subframe rust. Added Bywater’s comments on overrun valves. Added section on overrun cutoff. Gave the air injection system its own section. Added a whole bunch of stuff on cleaning up connections in the instrument cluster. Deleted an incorrect description of how the gauges work. Added Keith Morris’ and Bob Gallivan’s reports on adding additional lights to the instrument panel. Added Gallivan’s report on a lever to zero the tach. Added Franck Guilloteau’s tip on centering the steering rack. Added Jim Downes’ comments on original steering rack bushings. Added John Warr’s tip that Koni rear shocks have adjustable spring platforms. Revised the comments on shock absorbers somewhat. Added Craig Sawyers’ input on The Wiring Harness Company. Added Robert C. Warnicke’s tip on using a pipe wrench on the crank pulley, and made a couple other changes to that section. Added Bernard Embden’s suggestion for modifying the oil cooler mount on early cars. Added Ray Ingman’s report on the updated surge tank pickup screen. Added Ingman’s report on a surge tank venting kit. Added Craig Sawyers’ comments on the crank bolt size. Added note about seal sleeves with input from Richard Griffiths, Gregory Wells, Brian Schultetus and Mike Morrin. Added Harry Trafford’s tips on where to buy electric fans. Added Ed Hyatt’s experience with Imperial fans. Revised sections on alternators quite a bit based on input from Michael Aiken and my own GM alternator installation. Added Jim Schultetus’ method for adapting a GM alternator. Changed date for deletion of rear anti-roll bar from 1979- 1/2 to 1982 based on input from Skilleter via Patrick MacNamara. Deleted a resistance chart for the coolant temp sensor, since it is in the ROM. Changed the URL for Optima batteries, and added David Littlefield’s comments. Added Richard Damrel’s idea for using oversized Gano filters. Added Richard Damrel’s comment about the need for Gano filters. Added Sean Straw’s note on a www site with info on Beryllium. Added Joe Montgomery idea for draining the drainless radiator. Added a comment that Gano filter installation should be accompanied by fitting of a convenient radiator drain scheme. Added Craig Sawyers’ findings on the suitability of PVC wire insulation in the V of the V12. Added some tips on rebuilding the injector harness. Commented on the radiator air bleed plug vs. the valve, with input from Mike Morrin. Noted that an air bleed on the heater circuit would be nice, too, with a description from Tony Bryant. Added a section on using distilled/DI/RO water in the cooling system, with input from Dave Lokensgard, Peter Smith and others. Revised the reported number of m/t XJ-S’s to 352. Described the proper use of the term “S-type”. Revised the section on the rear oil seal somewhat. Added Rusty Beard’s instructions on wiring a 3-wire O2 sensor. Added Robert Louis Woodling’s tip on melted speedo sender leads. Added Larry Barnes’ report on success potting a Marelli rotor. Added Gregory Wells’ notes on Sta-Bil. Added John Braybrooks’ report on cold start problems, along with Roger Bywater’s comments. Added Steve Chatman’s idea for using a mirror when timing. Added James Dichter’s report on using Coke to remove heads. Added brief description of the distributorless ignition system from Bywater. Added info on stiffener capacitors for the stereo and notes on switched vs. unswitched power. Added Robert Louis Woodling’s idea for making a tensioner release tool from a pegboard hook. Clarified the use of the terms “driver’s side” and “passenger’s side”, and corrected their use in a couple of places. Added Mike Morrin’s experience on using helicoils on the H.E. spark plug holes. Added Robert C. Warnicke’s description of the GM400 vs. BW bolt and dowel patterns. Added URL for reading about the HEI ignition chip. Added John Keppler’s ski slope removal tip. Added Don Snyder’s tip on fixing a hesitation problem. Added a book recommendation from Lawrence Buja. Added Thomas Alberts’ notes on radiator foam. Added Jim Cantrell’s comments on 1st gear whine in the GM400. Added Chris Yewdall’s reports on a failed crank damper causing noise when the alternator is loaded -- and deleted Michael Neal’s comments that the dampers never fail, since he confirmed he has seen this failure now. Revised comments on hub carrier cracking, since it’s now apparently not a big deal. Added Napoli’s and Miles Milbank’s tips on disconnecting the radius arms. Added note that the rear subframe is top heavy, and Napoli’s suggestion you let it roll over to begin with. Added a comparison of US vs. Australia octane ratings from John Littler. Added John S. Whitford’s report on an updated Jaguar tranny support spring and Paul Hackbart’s report on the John’s Cars improved tranny support spring. Added Hackbart’s and LaRue Boyce’s reports on the John’s Cars polyurethane tranny mount bushing and spring cups. Added ideas for replacing the transmission mount from John’s Cars and Chad Bolles, including possible explanations for the complexity of the stock mount with reports from Craig Sawyers and Dan Jensen. Added Hackbart’s excellent tip for removing the upper disk from a floor jack to help put the tranny support back together. Revised the section on the cc failures caused by a shorting brake pedal switch, with input from Craig Sawyers. Added tip on cc actuator reassy from Robert I H Egerton. Added John Goodman’s note about an access panel for changing headlight bulbs. Added discussion of the BW tranny mount, with input from Mike Morrin. Added Gerry Halpern’s idea for aligning the tranny support plate. Added Craig Sawyers ideas about the drive shaft. Added guidance on what a model year is, with input from Peter Cohen and John Littler. Added info on a web site explaining wiring color codes from Tom Bennett, along with some info from the site itself. Added Bywater’s explanation that the keys aren’t that important in the damper installation, it’s the friction that drives it. Revised the ROM descriptions with input from Chris Carley and Patrick MacNamara. Cleared up some misunderstandings about the tach wiring on the cars with Opus ignition. Provided help finding tools for the damper bolt from David Littlefield, Jan Wikström, Walter Petermann, Robert Woodling, and Robert Warnicke. Gave the transmission mount a section of its own. Added Paul Hackbart’s troubles with shearing the bottom lip off the John’s Cars mount bushing. Added note that the John’s Cars tranny support spring is apparently too strong. Added description of the ballast resistor pack on Opus ignition cars, with input from Mike Morrin and John Holmes. Added Marelli distributor cap gasket info from Howard Gladman. Added John Littler’s ideas on adjusting the AJ6 engine timing. Added note from Porsche list on tire pressures in low- profile tires. Added Bill Spider’s explanation of why his oil pressure is steady at 58 psi. Added illustration of Opus ballast resistor pack. Added Craig Sawyers’ repair of the interface unit. Added Jim Swarr’s description of the Tremec 5-speed transmission, along with Inder Singh’s comment on shifting. Added Tom Bennett’s tip on GM400 valve body removal. Added a note about the number of check balls in the GM400. Added Walt Osborn’s tip on dry gaskets. Added note that Vintage Jag Works offers a M/T pedal box. Added Hugo Guerra’s note that the ’76 window motor fits the ’90 car. Added Craig Sawyers’ notes on different idle screw head sizes on the AAV. Added Julian Mullaney’s ideas on making license tag light lenses. Added Robert Weiss-Malik’s finding for a light bulb for the trip computer screen. Added Peter Cohen’s and Peyton Gill’s ideas on oil filter replacement. Added Bill MacDonald’s tips on tuning an FM modulated CD changer. Added Bob Egerton’s idea for finding TDC. Added Craig Sawyers’ and Mike Morrin’s ideas for finding TDC. Added Paul Burke’s and Sean Straw’s notes on a magazine article about tweaking the GM400. Added Jim Hall’s experience with a shift kit. Added Jim Isbell’s tip on replacing the cc bellows. Added some notes from Duncan Smith on the blower motors. Moved some of the discussion on blower motors from the section on the pre-1987 system to the section common to both the pre-1987 and Delanaire MkIII systems, since apparently the blower motors themselves aren’t much different. ***March 11, 1999 to April 14, 1999*** Corrected Bill Letter’s name! Added Richard Mansell’s opinion of the ‘89-91 5-volume shop manuals. Added more info on ROM editions with input from John M. Smith, Chris Carley, John Littler, and Gerry Halpern. Added a timing tip from Michel Carpentier. Added a procedure for setting the pre-H.E. timing at 2000 RPM instead of at 500, with input from Bywater and Morrin. Added tip on Toyota sealant from Greg Fronczak. Added Mike McLaughlin’s note on the VW Jetta washer pump. Suggested replacing the GM400 with the TH700, with input from Scott Horner and Chad Bolles. Added Peter Cohen’s words on electrical guides. Added Michael Neal’s comment on the CCC6759 tranny mount spring. Added Stefan Schulz’s note on the DZB105 distributor rebuild kit. Added Edwin Hyatt’s comments on the trip computer fuel fix. Rearranged the cooling system section a bit. Added comments from Stefan Schulz, Steve Gallant and Wally Magathan on how well the Jag dealers fill and bleed the coolant circuit. Added Jim Isbell’s tip on filling the cooling system with the nose of the car higher than the rear. Am amazed this wasn’t added before; my mind is gone. Added Michael Aiken’s and Craig Sawyers’ problems with the coolant recovery system. Altered some comments on bleeding ABS brakes, based on input from Stefan Schulz. Added notes on replacing the ABS accumulator, with input from Rusty Beard and Peter Cohen. Corrected a dimension on the JD25 diagram since Mike Morrin was kind enough to point out I had screwed it up. Revised the warnings about Beryllium based on input from Patsy Lokensgard and Mike Morrin. Added notes about the little filter on the distributor vent from Peter Havas and David Littlefield. Added Gregory Wells’ comments on rack rebuilding. Added Mark Barker’s resettable compressor switch retrofit, with comments from Sean Straw, Mike Morrin, and Robert Egerton. Added note on freon pressures. Added EFI ECU description from Roger Bywater. Added history of US sealed beams from David Berman. Added info on braided brake hoses from Mike Morrin, Brian Schreurs and Jim Downes. Added Jim Isbell’s mpg report on oxygen sensor replacement. Corrected an error in the description of the ECU feedback monitor socket pointed out by James Robinson. Added Bob Gallivan’s note on thermostat differences. Added Craig Sawyers’ note on poly suspension parts. Organized the description of “electrical guides” a little better. Added description of door lock schemes with input from Mike Morrin. Added door lock maintenance tips from Mack Kamna. Added weird lock behavior reported by Julian Mullaney and explained by Randy Wilson. Added notes on boot lock operation from Mark West. Added theory about keeping leaves out of the radiator. Revised section on cleaning leaves out of radiator. Added dire warnings about the fuel sump pickup problems based on John Himes’ expensive experience. Added Peter Cohen’s comments on cork GM400 pan gaskets. Added Paul Hackbart’s note on splined tranny mount posts. Add Steve Chatman’s report on the oversize GM400 pan from J. C. Whitney. Added info on valve seat fit, with input from Craig Sawyers. ***April 14, 1999 to June 12, 1999*** Added note that starter doesn’t need removal when pulling A bank head. Added comments on Japanese headlights. Added notes on diagnosing the fan clutch and rearranged the cooling system section a bit. Added Colleen Melton’s idea for putting screen in front of the condenser and oil cooler. Added info on hitch-web from David Littlefield. Added an argument about spark plug tools with input from Matthias Fouquet-Lapar, Peyton Gill, John Bertsche, Stefan Schulz, David Littlefield, Larry Barnes, Richard Mansell, and Craig Sawyers. Expanded the disclaimer a bit. Added Daniel Stern’s advice against trying to replate headlight reflectors. Added Mark Barker’s simple headlight relay scheme. Added part number for AJ6-powered XJ-S ROM. Added idea of buying two Haynes manuals to cover the 6-cyl XJ-S. Revised the comments on internet stuff a bit. Gotta do that every now and then. Changed the comments on John’s Cars, based on their excellent response to an error in tranny spring design. Deleted Rich’s Import Auto, since the phone number was NFG. Rewrote the entire section on fuel hoses and added a graphic to clarify which type barbs need clamps. Used input from John Ashcroft, Tom Mackie, Bill Fernandez, Richard Fields, Peyton Gill, Bernard Embden, Keen Young, Jim Taylor, and Steve Douglass. Added Don Krysakowski’s report on a white Marelli rotor. Added Jason Korke’s warning on Lucas caps and rotors. Added Michael Neal’s comments regarding Loctite 518. Recommended Loctite 573, 574, or 518 for liner installation. Added info on starter relay replacement with input from Bill Farnsworth and John T. Richardson. Added Bill MacDonald’s report on EFI relays keeping the starter from turning. Added tips on the wiper motor cover, with one from Chuck Sparks. Added tip on replacement gears for the early electric windows from Chuck Sparks. Added Don Lawton’s tip for replacing a window motor with a generic GM item from a junkyard. Added Certainlywood to the source list. Revised stuff on the surge tank pickup screen, with input from Kevin Darling. Added Constantine’s URL. Added Del City to the source list. Added Ed Sowell’s tip on injector plugs. Added tip on magnetic surge tank drain plugs, with info from Wally Magathan and Kevin Darling. Added notes on windshield washer nozzles from Martin Hargreaves and Chuck Sparks. Explained configurations of windshield washer systems with info from Martin Hargreaves. Corrected some info on wiper parking, and rearranged the section a bit. Added ideas for modifying the washer systems from John Goodman. Added news on washer fluid level sensor availability problems from Michael Wilson. Added Wilson’s note on access to the washer tank in the fender. Added warning about running the fuel pump without starting the engine. Added Peter Smith’s note about fuel pump variations. Added note about FOD to the fuel pump based on Steve Holst’s experience. Added substitute part numbers for fuel pumps from Peter Cohen. Added notes on chrome plated alloy wheels, with input from Mark Stoner and Rod Fleming. Noted that the cam covers may use either SAE or metric screws. Deleted a gasket comment when Michael Neal told me it was only for the 4.2 engine. Added Keen Young’s assurance that injector polarity doesn’t matter. Changed Jim Isbell’s address and phone number. Added Bill Farnsworth’s report on injector harness repair, along with info from Gregory Wells and Keen Young. Deleted the idea of the surge tank pickup screen pulling too far up the pickup tube (found to be incorrect). Added info on HEI capacitor from Joe Bialy. Clarified info on replacing air pump with idler pulley. Added idea of using diode on compressor clutch from Dennis Kindig. Added Jim Isbell’s notes on power steering fluids. Added tips on finding M6 cam cover screws from Dave Oxenreider, Gerard Peters, Craig Sawyers and Joe Bialy. ***June 12, 1999 to August 25, 1999*** Added description of temperature gauge indications. Added note that XK’s Unlimited carries poly tranny mount bushings. Added note that XK’s Unlimited offers a T700 conversion kit. Revised description of Daimler a bit. Added Greg Meboe’s notes on Pozidriv screwdrivers. Removed references to CT-600 leather dye, since Meboe says it’s no longer offered by Gerard Coachworks. Added story about PCV vs. rear main seal leakage from Crispin Hales. Mentioned the new design rear main seal’s tendency to blow out. Added tips on repairing the OPUS ballast resistor pack, with input from Gary Johnson. Revised some notes on electric fan switches with input from Peter Cohen. Rewrote the repair manual section in hopes of making it a little clearer. Revised description of anti-seize compound, since I found out that some people were using it as a lubricant for moving parts. Added ideas for prelubing engines after rebuild, with input from Andrew Holley. Changed a dimension on the aluminum half moon seal drawing, suggested by Craig Sawyers. Added Bywater’s improved description for using a VOM on the feedback monitor socket. Added info on plumbing the vacuum advance system. Added address for Kelsey Publishing. Added info on XJS Bulletin. Added guidance for vacuum diagrams. Added Walter Petermann’s plan for cooling a hot-running 16CU ECU. Added note that the 2-second fuel pump shutoff is not intended as a signal it’s time to start the car. Added info on Crow Engineering from Stewart Plant. Added soldering iron injector hose removal method from Ken Gray. Added lots of info on repair manuals for the AJ6/AJ16- powered cars. Added mention of the Mitchell Diagrams from Jeff Strom. Added info on Dayton and TrueSpoke wheels with input from Brett Kelien, Steve Gallant, Michael Mongelli, John Tompane, and Walter Acker IV. Added recommendations for Lucas Power Steering Stop Leak from John T. Richardson, George Harris, Greg Meboe, and Joe Montgomery. Added Chris Carley’s description of the Marelli crank pickup. Added Steve Holst’s note on greasing the centrifugal advance. Added ideas for dealing with the timing chain tensioner from James Dichter and Mike Morrin. Added a checklist for radiator work. Added Jim Householder’s report on a Marelli coil failure. Added Mike Morrin’s input on gasket sets. Added Ron Brock’s experience with bad engine grounds. Added Colleen Melton’s description of the ground strap, along with Morrin’s reflection on it. ***August 26, 1999 to October 26, 1999*** Added info on AAV repair from Patrick Glenny. Added info on AAV configuration from Michael Aiken, Craig Sawyers, Mike Morrin, Ed Sowell, Roger Bywater, and Greg Meboe. Added Philip Jones’ note on used AAV’s. Added info on the oil pressure sender from Tom Mackie, Mike Morrin, and Ed Sowell. Added tips on replacing the oil pressure sender from Julian Mullaney, Stefan Schulz, and Craig Sawyers. Deleted Mike Morrin’s comment about OPUS pickup clearance, since he later found that wasn’t the problem. Added Morrin’s note that the pre-H.E. doesn’t have a coolant overflow tank. Per Morrin, noted that the square tubing fuel rail came with Digital P, not with H.E. Added Morrin’s method of getting the radius arms loose. Added a few more spots to check for rust from Morrin. Deleted a bunch of tire price info; it was probably outdated, and it’s not the kind of stuff this book usually carries anyway. Added Morrin’s brass header tank idea. Revised advice on rebuilding distributors with input from Carlos Artal. Added listing for Coverlay from Walter Acker IV. Mentioned that the rear ends of the intake manifolds require four gaskets, not two as the parts catalog indicates. Wrote about various thermostat temps, with input from Peter Cohen and James Teston. Added Julian Mullaney’s tip for selecting the correct thermostats. Added Paul Bachman’s notes on radiator flushing products. Listed five options for fixing a plugged radiator, with a note from Jim Isbell. Added some info on the CEI ignition pickup with input from Martin Walker and Keith Morris. Added Ron Kelnhofer’s correction of the date of Digital P introduction. Added info on dropping the IRS from David Littlefield, Franck Guilloteau, and Jim Isbell. Corrected a reference to VW windshield washer pumps. Deleted a bunch of extraneous info on stainless steel wire. Added a description on how to properly apply lockwire. Added lots of discussion on the air purge system, with input from Mike Morrin, Bob Lovell and Tony Bryant. Added a correction to the cooling schematics. Revised some text regarding license tag light lens replacement. Deleted references to Alldata’s CD-ROM, since Tom Mackie confirmed they no longer offer CD-ROM’s on Jaguars. Kept mention of their TSB site, though. Rearranged a lot of the discussion about open-loop operation at idle in Neutral or Park. Changed the name “Jaguar Services” of Harvey, IL to “Jag Services”, since they sent me a flyer indicating that is the name of the business. Added Joe Bialy’s notes on Loctite products. Added Paul Gill’s tip on cleaning out the space in front of the rad. Added Jon Heflin’s tip for replacing the Bourns throttle pot with the later Lucas pot. Added David Johnson’s idea for supporting a generic TPS under the bellcrank. Split out sections on emission controls and exhaust in the modifications section. Modified comments on gutting catalytic convertors. Added notes on disabling the 15 minute timer, with input from Craig Sawyers, Mike Morrin, and Richard Mansell. Added Dayton’s contact info. Added a coupla ideas for avoiding dropping the cc cable attachments. Added Steve Wilke’s note on the cc heatshield. Added John Ashcroft’s idea for trimming the brake pedal. Added Jim Schultetus’ tip for removing bearings. Revised the entire section on AAV’s based on the research on Greg Meboe’s units, as documented on the jag-lovers site. Added Mike Morrin’s tip for freeing up an AAV. Added John Ashcroft’s note on rebuilt AAV’s. Finally got around to adding H&H Prestige Spares to the source list. ***October 26, 1999 to December 31, 1999*** Revised the section on full flow vs. relief oil cooling a bit. Revised the flyer page a bit. Added listing for Keisler Automotive Engineering & Electric, including note that they offer a 5-speed kit. Added Kurt Hill’s experience with the AAV plumbing on an early car. Revised the procedure for adjusting the throttle linkage using the TSB info from Bialy and Mansell. Added Craig Tims’ experience with a plugged banjo bolt. Added an entire subsection on the cold start injector system, with input from Ken Gray. Added a treatise on spark plug wires, with a SWAG on how Magnecors work. Removed details on 1982-on bumper removal, since they are adequately addressed in the Supplement. Added a cross-reference chart for Jaguar part numbers for light bulbs. Added info on sealing sandwich plate bolts from TSB 12-53. Added Craig Sawyers’ guide on lower wishbone pivot removal. Added bushing and alignment tips from Peter Havas. Updated URL and added address and phone numbers for Lamp Technology. Revised description of “jiggle pins” based on Douglas Dahl’s input. Added tip on GM HEI ignition module tester from John Robison. Noted a change in front hub bearing end float spec per TSB. Added a whole bunch of revisions based on TSB 12-35, which introduced the Gortex gaskets. Deleted schematic for wiring fog lights. Added Chuck Sparks’ idea for spreading the bosses on the subframe when installing aftermarket rack mounts. Revised the antenna section to distinguish between Merlin and Hirschmann antennas. Added info on Conversion Components Ltd. in NZ. Added info on speedometer senders, with info from Walter Acker IV. Clarified service interval counters. Incorporated Roger Bywater’s description of AJ6’s large bore throttle kit. Added Jim Wood’s tip for frozen door locks. Added info on trip computer types. Simplified the timing specs for the pre-H.E. with Bywater’s input. Corrected the description of oxygen sensor failure mode. Added a lengthy discussion on controlling inductive loads with input from Alan Heartfield, Mike Morrin, Roger Bywater and others. Added Andrew Stott’s note on VIN’s for M/T cars. Deleted an overly detailed description of the 1994 XJ12. Deleted discussion of a Chevy heater valve, since the aftermarket valve is better and cheaper anyway. That’s it for revisions prior to 2000. For subsequent revisions, see REVISION.TXT.