What should I do if my Jaguar overheats?
A hard or expired rubber seal on the radiator caps or an under-rated (3 lb or 8 lb) pressure cap on the overflow tank.
What’s the boiling point of coolant in a Jaguar?
The same goes for your cooling system. When your system operates at it’s rated 15 psi pressure (XJ6 Series III) the boiling point of the coolant circulating inside of your head and block is much higher than if your system is operating at ambient pressure.
What causes a Jaguar V-12 engine to overheat?
It has been Kirby Palm’s impression that faulty ignition timing is a major contributor to Jaguar’s reputation for overheating: If the timing of the V-12 is retarded it will overheat BIG TIME. This is supposedly true of most cars but I have never seen it happen the way it happens on the H.E. V-12 5.3 litre engine.
What kind of compressor does a Jaguar air conditioner use?
AIR CONDITIONER COMPRESSOR: Up through 1992, the Jaguar A/C compressor was labelled “Harrison” but was in fact the standard GM item referred to as an A-6 — and therefore comparatively cheap to replace. In fact, it is generally recommended to simply replace the compressor rather than attempt even the simplest repairs.
A hard or expired rubber seal on the radiator caps or an under-rated (3 lb or 8 lb) pressure cap on the overflow tank.
What kind of engine does a Jaguar XJ6 have?
Air conditioning was standard, but no manual gearbox was offered. Jaguar raised the XJ6 and XJ12 front bumpers to meet U.S. regulations in the 1974 Series II, and fuel-injection replaced the V-12’s four carburetors, pumping the engine from 244 hp to 285 hp in 1975. The XJ6 was fuel-injected from 1978 and both were LWB-only from 1974.
It has been Kirby Palm’s impression that faulty ignition timing is a major contributor to Jaguar’s reputation for overheating: If the timing of the V-12 is retarded it will overheat BIG TIME. This is supposedly true of most cars but I have never seen it happen the way it happens on the H.E. V-12 5.3 litre engine.
Which is worse a Jaguar XJ6 or XJ12?
Beginning in the 1970s, frustrated owners started fitting Chevrolet V-8s into the worst XJ6 sedans, although they are a poor substitute. The wiring harness must be modified, sending units swapped to make gauges work, and legal smog gear fitted in California. Plus V-8s vibrate worse than straight-sixes, and nobody trusts a mongrel.