Thousand Dollar Supercar

Thousand Dollar Supercar's 1988 Jaguar XJ-S 3.6

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I'm trying to split these posts up a bit more. Have a photo:


It's a nice place to be, despite the number of warning lights. =)

Wheel balancing didn't completely cure the vibration the car has, and it also feels a bit oversteery when I start to push it hard. Some of the bushes looked a bit tired, so I ordered some new ones. First on the list is the front lower wishbone inner mounts. I thought this would be easy until I went to start the job today.

Haynes recommends compressing the spring as the first step, but straight away this requires a special tool that inserts through a hole in the middle of the spring pan. Then he goes on to get you to take the front suspension basically to bits, removing the caliper and disc and separating ball joints. Lastly you have to knock the lower fulcrum shaft back through both bushings to get the wishbone off. The trouble (well, one of the troubles) is that on the XJS, the power steering rack is in the way of removing the fulcrum shaft. :rolleyes:

There has to be a dodgy way of doing it.. I think I'll have to lower the steering rack (and change its mounting bushes too at the same time). The fulcrum shafts apparently can get really stuck in place (as in, people have dropped the whole front crossmember to saw the shafts in half!). Because of that, I don't know that there's much hope of violently removing them with the suspension otherwise still together and the spring force countered by a jack. They'd probably still have some amount of load on them, and the suspension might come off the jack and fly apart etc. Has anyone done this before?


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I'm still fighting the front suspension. The upper control arm inner bushes were easy, yay.

I couldn't get a splitter on the lower balljoint but the XJ-S Barry Bible had the answer - unbolt the upper balljoint so the whole hub assembly is just hanging on the lower balljoint, turn the steering until you can wedge something in the gap between the lower wishbone and the stub axle carrier, and grab the brake disc and pull the hub assembly against this wedged item to lever the balljoint apart.

I thought I was pretty clever at that point, but I was wrong.


The spring is longer than I hoped - it's still compressed in this photo and it annoyingly prevents the wishbone from dropping / opening any further. I still can't get my normal spring compressors onto it in this position.

Fortunately there's plenty on the net about Jaaags. Dodgy people like myself seem to favour making their own OEM-style spring compressors out of threaded rod, so that's what I'll have to do. Hopefully I can get this all finished this weekend without ending up dictating my next post from a hospital bed.. ;)

I found that the nuts for the front sway bar end links had worked themselves most of the way off, so the swaybar probably wasn't as effective as it should be. I choose to believe this could have been contributing to the slightly dicey oversteering feel the car seems to have.

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