I recently received a photocopied FOCUS manual from a fellow lister (Thank
you, G.G.) that is just absolutely incredible! Apparntly it originated as
part of the literature used by Jaguar technicians.
I’ve never seen a more complete, detailed breakdown of each component in the
overlapping systems of the V12 engine. It is fully illustrated and
diagrammed. Each system is illustrated, each component is photographed and
identified by location, explanation of its function, and diagnostics of each
component is covered. Specifications for everything from spark plug gap to
the temperature-to-resistance ratios for air and coolant sensors are listed.
It is roughly 60 pages in length.
Taken from the introduction: “This FOCUS book is to be used as a source
document for all current XJ-S engine performance related information and
adjustment techniques. These apply to all H.E. and later models with P type
While Kirby’s book is certainly indespensable, I consider this an even
System Description Fuel injection Fuel injection components Ignition Ignition components Emissions control Emissions control components Engine setup Throttle operating adjustments Vacuum verification Ignition timing/idle speed Fuel flow/fuel pressure ECU verification/adjustment System analysis Performance factors Epitest Pulse duration Fault guide Specifications Engine setup/performance factors Wiring diagrams
I have scanned in the photocopied book I received and converted it into a
.PDF file for everything except the wiring diagrams, which were too large
for my scanner. (After I reduce them on a photocopier, I will scan them in
and append them to the .pdf).
Since this is such a thorough and easy to follow manual, I think it is an
indespensable tool for those wishing to keep yet another XJ-S on the road.
I really want people to have access to the book.
Anyone who would like me to email them the .pdf file, please ask! I’ll send
what I have, and after I add the wiring diagrams, I’ll send you the updated
version as well.
Additionally, the list members who operate websites may choose to make the
.pdf available to others via their site.
85 XJ-S USA_________________________________________________________________
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