I am having difficulty removing the pivot bolt from the upper wishbone. The offside was no real problem but the n/s is proving a pain. Is it just a case of keep soaking it with plus Gas and belting it with a hide mallet, or is there another method i need to adopt. Many thanks. Anthony.

 

Just a matter of staying on it. I have never had a real problem with them and make certain to use nickle or copper anti seize on reassembly. You might have more luck by use of a brass or aluminium drift against the underside of the bolt head. Keep an eye on the washers as you move the bolt, they can jam up.

 

Also, unless it's clean and rust-free, it's worth trying to clean up the exposed middle part of the shank to help the bolt on its journey through the crossmember. Either spin the bolt or pass some emery tape around the back to get at the hidden area.

 

I have thrown the towel in. The bolt is free in the cradle but the hex end of the bolt has corroded in the bush and i can't shift it, if i could somehow clamp the wishbone to stop it bouncing i might be in with a chance. thanks for your help.

 

Plus-Gas will do nothing for you (nor will WD-40), get some Krylon or PB Blaster penetrating solution. Give it a good coating and leave it for 12 hours, add more during that 12 hours if you are able to.

If you have a compressor, an air hammer and block of hardwood or brass rod is the weapon of choice for that job.......otherwise you just have to stay with it to the death, it will come out with enough bloody mindedness.

 

I used a floor jack to support the brake/knuckle assembly. I noticed that the bolt was somewhat easier to move when the wishbone was at certain levels, and harder at others.

I used a BFH on the pointy end of the bolt to get it to move. Then I sprayed PB blaster all over it, and hit the hex end with the BFH to put the bolt back into place. I repeated this a few times so that the bushes were lubed up inside.

I then hit the pointy end with the BFH until the bolt would move no more. Then I put the open end of a 24mm wrench around the bolt, up against the underside of the hex head. That gave me a better angle, and I used the BFH to strike the wrench near the hex head. That finally was enough force to get the bolt all the way through the bushes.

As you've found out, the job can turn into a death struggle.

 

Managed to do the job. It looks like it wasn't corrosion holding it ,but grip marks on the bolt where i guess it had been taken out before and had picked up on the bush. All filed back and plastered with copper grease, back together and happy with the job. The bushes are yellow are these poly bushes?. Thanks for the advice.

 

My worst experience with one of these (and there's been a lot) was four days of alternate soaking, heating and hammering.

This is the standard bushes:




Yellow with a squarish shoulder will be polybush.

Graham

 

Glad you got there

I was lucky as both came out easily, but IMO it should be a service item every couple of years to dismantle and lubricate everything. Definitely not Jaguar's finest engineering hour.

 

Good on Ya Mate!! Never let the thing beat you. As you stated, the problem was found to be gouges from someone else. I was suspecting that the bolt may have some ridges worn into from wear and were getting stuck on the edges of the bush, that happens too not just on Jags.
Grease fittings would be a nice addition to lube it up once in a while avoiding all this. Mine came out easily (sorry not rubbing it in) but was still quite a lesson learned.

BTW, I love "talking" with you folks from overseas. It makes me feel rather international as we exchange our experiences and helpful advise.
I'll raise a pint to you this evening, TM