Something I have learned about Jaguar rear end s, when they get hot if the vent opening is plugged, then pressure built up and causes leaks out of the axle bearings. If you just go on a short drive, no problem. I've decided to make sure the vent is clear, I removed all 10 bolts and found that the differential cover does not want to budge. Danny built this car 43 years ago and the gasket liquid will not budge. There's no lip to put a jack under. But right now I do have a bottle jack putting pressure on the fill plug, coincidentally that won't unscrew either. The axle was drained so either I have to get the plug out or I have to get the cover off . Any tips on getting the cover removed? Sent from my moto z3 using The H.A.M.B. mobile app
Thin metal blade gasket scraper in between cover and housing with a few smacks of a rubber mallet on the end of the scraper handle to break the seal.
I saw a guy take a oil pan off, that was heavily goobered up with some kind of sealer and wouldn't budge, of a old truck engine years back using a air chisel.....he used a wide bit with a nice edge on it , hit it a few times and pop...off it came ..and didn't even damage it. Sent from my SM-T387V using The H.A.M.B. mobile app
Not to be a wet blanket, but Jag rear ends are known for developing leaky axle seals over time. The cause is the inboard brakes; they get hot in use and the heat is transferred to the seals, eventually baking them. Running the exhaust under the rear contributes to the problem. How quickly they went bad was proportional to how much 'enthusiasm' was involved when driving. The racers could cook a set in one race... Jag finally moved the brakes outboard in '92, recognizing the issue. It's possible to convert the early axle assemblies, use XJ40 sedan axles, uprights, and brakes for a bolt-on solution.
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