[xj40] replacing rear hub fulcrum bearings

I had a problem with a clunk from the rear when selecting
gears or accelerating or decelerating and narrowed it down
to the drivers side hub fulcrum bearing. I was going to swap
out hubs but decided to replace the bearings.

I was surprised that it was not covered in the online book
as I know its been covered a few times in the forum. for
anyone who wants to tackle it them selves here are some pics
of the job

http://www.jag-lovers.org/v.htm?1261064146

and I have put a write up at this site

http://www.britautorepair.com/jag_rear_hub_carrier.htm

not really enough space here with just 2500 characters

the job was pretty easy and the worst part was freeing up
everything from 20 years of corrosion.
the car drives much more smoothly now - well worth doing the job
hope it helps someone
cheers
barri–
1988 XJ40, 69 Lotus 7, 74 450SL, 76 caddy 8.2L some new cars
Seattle WA, United States
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In reply to a message from Barri Herman sent Thu 17 Dec 2009:

Barri,

I saw your pictures, thanks for uploading them. So you need some
kind of puller to get the outer race out of the bearing. How did
you push the new one in? My car still rides smooth, when I bought
it almost 3 years ago I didn’t get any service record from the
dealer, so I had/have no idea what was replaced and how long ago if
the previous owner did something on this car. But the overhauling
the front and rear end is on my list big time. Bearings, bushings,
shocks, etc.
Thanks again for the pics.
Cheers!
Joseph–
'94 XJ40, CFA/AFW. Miles still under 100k. Naples, FL
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In reply to a message from Joe77 sent Fri 18 Dec 2009:

I found a 30mm socket was just the right size to tap in the
outer bearing race. the new ones went in a lot easier than
the old ones came out!
cheers
barri–
The original message included these comments:

kind of puller to get the outer race out of the bearing. How did


1988 XJ40, 69 Lotus 7, 74 450SL, 76 caddy 8.2L some new cars
Seattle WA, United States
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In reply to a message from Barri Herman sent Thu 17 Dec 2009:

Awesome write-up. I hear a clunk when I back up slowly and
hit the brakes. But I think my clunk is coming from the
front, probably on the driver’s side, but I’m not very sure.
Was it difficult to track down the exact location?–
The original message included these comments:

I had a problem with a clunk from the rear when selecting
gears or accelerating or decelerating and narrowed it down
to the drivers side hub fulcrum bearing. I was going to swap
out hubs but decided to replace the bearings.
I was surprised that it was not covered in the online book
as I know its been covered a few times in the forum. for
anyone who wants to tackle it them selves here are some pics
of the job
http://www.jag-lovers.org/v.htm?1261064146
and I have put a write up at this site
http://www.britautorepair.com/jag_rear_hub_carrier.htm


Black 1989 XJ6
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In reply to a message from QuangXJ40 sent Sat 19 Dec 2009:

In my case it was difficult as I had a bad clunk that I
found was due to a shot universal joint in the driveshaft,
when I fixed that there was no free motion in the hub as i
had dropped the hub down and the top of the bearing race in
the fulcrum was tight on the rollers. when I put it all back
together I had a quieter clunk but still a clunk - as the
hub didnt seem to be the problem I replaced the rear
bushings etc etc in an effort to get rid of the noise. I was
doing some work a few weekends ago and had the wheels off
and the car on stands but the wishbone jacked up to road
height (instead of hanging) and thats when I noticed the
movement (about 1/4 inch - 4 or 5 mm) in the fulcrum
bearing. scared the whatever out of me because with that
much movement I assumed the bearing race was eating into the
aluminium housing. Turned out though that on both sides the
roller case had siezed and there was intense brinelling on
the outer race so when the 2 lined up - rollers and
depression in the race - (at driving height)then I had a lot
of play.
cheers
Barri–
The original message included these comments:

hit the brakes. But I think my clunk is coming from the
front, probably on the driver’s side, but I’m not very sure.
Was it difficult to track down the exact location?


1988 XJ40, 69 Lotus 7, 74 450SL, 76 caddy 8.2L some new cars
Seattle WA, United States
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Barri,

Your pictures are excellent! Sadly, the webpage for your write up does not exist anymore.

I am planning to replace the left rear hub fulcrum bearings. I wonder whether it is necessary to renew not only the bearings (17), but also the adjustable spacers (18), washers (19), and locknuts (20). :thinking:

In this thread it is advised not to renew the spacers (”shims”): https://www.jaguarforums.com/forum/xj-xj8-xjr-x308-27/rear-hub-bearing-replacement-write-up-169352/

Did you cut off the inner race using a small Dremel cutting wheel or a carbide tile cutter?

DO NOT replace the spacers. They are set to the hub assy from the factory and simply renewing the bearings shouldn’t change anything else.

DO NOT lose the small thin shims. They become ‘stuck’ (along with old grease) on the old bearings and must not be discarded. They need to be reused to provide proper preload for the new bearings.

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