Had the car on a rack at the exhaust shop (gonna do the H Pipe thang) and
noticed that the cross member just under the rear u-joint is pretty oily and crudy. Would that be from the differential I'm guessing? How concerned should I be? The old guy from the exhaust shop just said " Ehhh...it's englidh!" and laughed........

 

I also am i little curious, mine also has a little build up. However don't really find it that funny???

Sorry I don't have the awsner.

 

Quote:

Oily in the rear, should I be worried?

Eat less fatty foods!

 

I, too, have some oily residue below the differential. I've been meaning to change the differential fluid, I just haven't gotten around to it yet.

 

Same here. Perhaps they all seep a bit.

 

Sounds like a pinion seal leaking a bit. If it's just a seeping I'd live with it. Just make sure to check the fluid level from time to time. A drip here, a drip there...it eventually adds up. You don't wanna let the unit run low on oil.

The subject line of this thread reminds me of a joke that ends with "So, do you wanna go camping?" :-) :-) (Which means nothing unless you know the joke)

Cheers
DD

 

Like was said, the pinion seal is leaking. The pinion turns three times faster than the outputs, causing it to wear out three times faster. The problem is that when the oil level drops, the output bearings begin to lose lubrication , leading to a pretty quick set of bearings. The outputs in this car have a lot of force applied to them and they can't stand low lubrication for long. I would replace the seal and drain and refill with synthetic.

 

If it's just a seep, then keep it topped up and keep an eye on it.
When it leaks, here is the way to fix.

bob gauff

 

great.........of course the
procedures attached above call for "special tools".....translation-mechanic time.

Ok, so I can just top it off and watch for it to eventually leak, have had her for 3 mos and not a drop on the garage floor so hopefully it's a long time till it gets serious. But what oil? I've seen several threads discussing it but no one has given a diffinitve answer, and is there just a fill plug that
i can fill through till it runs out or ???? I'm better under hood than actual drive train I must admit

 

If you need help with trying to select the correct orifice, i'm not your guy.

 

I solmonly swear to read the complete document from now on, then read it again before asking my next already answered question......

But now all this talk of the orifice, I'm not workin on it at the orifice, all my tools are at home!

 

I am pretty new to this forum but I must say ..... "You the MAN Bob!"

 

Bob, and a few other forum members have many years of jaguar service experience, and he in particular has amassed a pretty substantial digital archive from his past. I think of him as our unofficial jaguar librarian.

 

Remove the fill plug, insert a hose from your suction pump pointing down to the bottom of the housing and remove all the fluid you can. Using a pump, put in synthetic 75W-90 or 80W-90 gear oil until it runs out the fill hole. Reinstall the plug to torque.

 

As your unofficial jaguar librarian I say:

SHHHHHHHHHHHHHHHHHHHHHHHHHHHHH

Keep it down in here!!!!!!!

bob gauff