When did the Jaguar XJ12 get a new engine?
Most XJ sedans soldiered along with the old XK engine through three series, until replaced in 1986 by the less-than satisfying XJ40 and its new but weak-chested 3.6 six. Just as well, as the old sixes are largely bulletproof, and parts will forever be available.
What happens when a Jaguar V12 engine overheats?
In any aluminum-block engine, severe overheating can result in a warped block or warped heads, which in turn normally call for an engine replacement. In the Jaguar V12, a more common symptom of an overheated engine is a dropped valve seat.
Which is the best model of the Jaguar XJ?
It also appears to be one of the best values, at least in terms of price paid for the luxury it exudes. When a Jaguar XJ rolls up, it makes a statement of true luxury. The XJ is a truly beautiful luxury car, with lithe, elegant lines that ooze class and sex appeal, and its luxurious cabin is swathed in rich leathers and warm woods.
Can a Jaguar XJ-S have a cooling system?
In theory, leak sealers will not solidify until they come in contact with air; however, there is always a little air inside a cooling system, and in the case of the XJ-S there is apparently enough to cause trouble. Please, do not use any leak-sealing substance within the V12 cooling system.
When did I buy a 1988 Jaguar XJ12?
I purchased this Series III V12 Sovereign model, RH drive, in 2003 while living in Australia 1988 Jaguar XJS V12 Hess & Eisenhardt Convertible-This car is equipped with the V12 engine, a
What kind of engine does the Jaguar XJ12 have?
Compounding problems, the Series I XJ12 which followed—23,564 were sold from 1973–91—used the 5.3-liter V-12 engine found in the Series III E-type. Air conditioning was standard, but no manual gearbox was offered.
Why are Jaguar XJ6 and XJ12 not worth more?
The V-12 is more difficult to maintain, and overheating issues were exacerbated by catalytic converters raising under-hood temperatures to crematorium levels. Rubber fuel hoses in the V never stood a chance. Ray Nierlich is a lifetime Jaguar expert, and has been Dr. Jaguar in Newport Beach for 25 years.
Why did the Jaguar V12 have hot re-start problems?
Early systems suffered from hot re-start problems due to having very small bore fuel rails which are prone to fuel vaporisation in the heat, the later larger bore system is a useful upgrade.