ok we just did the left rear wheel bearings.
but the axle goes in and out of the Diffrental a lot. the right side is solid. when we rock it in and out.
A. what did we miss?
B. should we worry?

why is the healey my only functioning car right now?

 

Hi Sopwith Camel,

I think you should worry, but to give you the best response it would be ever so helpful if you could please tell us the year and model of your Jaguar.

Cheers,

Don

 

1995 jaguar XJ 3.2
should i look at doing the Diff?

 

Hi Sopwith Camel,

Thanks for giving us the info on your car. The inner U-joint flanges of the axles connect to the output shaft flanges on the differential. There should be no inner-outer movement of the output shaft/axle at the differential, only rotary motion of the axle.

Are you certain the axle is connected to the differential output flange correctly with all four nuts secured on the studs?

Is the output shaft mounting flange securely fixed to the side of the diff?

I have photo albums on the diff output shaft bearings at the link in my signature, but unfortunately the large images are not currently available. The thumbnails and descriptions may still be helpful.

Cheers,

Don

 

ouch, the U joint on the axle looks solid and doing its job, when we rock the wheel the shaft goes in and out at the Dif.
do I replace the whole Dif or the stuff in side?

 

If the differential output shaft is moving in and out of the diff, then at the very least you will need to replace the output shaft bearings and retaining collar. Any movement of the output shaft in and out should be barely detectable by hand (0.001-0.006 inches). In the Jaguar independent rear suspension (IRS), the axles also serve as the upper control arms, so there is a lot of stress on the diff output shaft bearings, so periodic replacement is necessary and common.

I have photo albums showing the process of bearing and collar replacement. As I mentioned, the large images at Jag-Lovers are still down for their server transition, but you can see my thumbnails and descriptions here:

Differential Output Shaft Bearings Part 1 of 2
Differential Output Shaft Bearings Part 2 of 2

Cheers,

Don

 

those photos are very comprehensive, ok so this is common that they eat there inner bearings. let me talk to my mechanic friend who is helping, then we will need to figure a parts list.
the 67 MK2 is what is on the schedule for this summers projects.

 

I had trouble with a diff (making whining noise) several years ago and I replaced it entirely.

One of the wheels began to exhibit that same behavior by the time I got to replace it.

After getting the bad differential out there was about 2 inches of play in that output shaft.

I still trip over that thing in the garage -- wondering if it could be rebuilt or turned into a furniture piece.

 

Yes, I have a growing collection of warn out mk2 parts.
Yes that’s my issue not quite that bad yet, so do you recommend just replacing the whole unit or doing surgery on it’s guts?

 

should I do one side or both while Im in there.

 

Doing both is a good idea, but to replace the output shaft bearings on the right side will require removing most of the same parts there that you're going to have to remove on the left side, so there is no real economy of time. But one benefit of doing both is that if you get both output shafts on your bench, you can disassemble and reassemble one while keeping the other together as a guide to how the parts go back together so you don't make a mistake. If, for example, you accidentally install the mounting flange backwards and press on the retaining collar, you'll be really unhappy. Having the other shaft as a reference will help you avoid mistakes. When you get one shaft done, you can use it as a guide for the remaining shaft.

Let us know how it goes!

Cheers,

Don

 

I can't source the shims so I think it would be best to leave the good side together.

I just mangled a shim putting new discs on my MGB how do i know when and where to use one?

 

The manufacturing tolerances of the top tier bearing companies like SKF, Timken, Toyo and NTN are so good that you shouldn't have to replace any shims - just reuse the ones you have (taking care not to damage them).

Cheers,

Don

 

ok getting back to the XJ project.
is this something i can do on my driveway and in my shed?
why didn't i stick to MGs

 

Have a look at the photos I linked to in Post #6 of this thread to decide if you are equipped to do the job at home.

Cheers,

Don

 

yeah that is whats making me think of trying it.