hi guys just failed mot on wishbone bushes removed hub undone upper wishbone pivot bolt but cant extract pivot bolt has anyone had this problem
any tips most appreciated

 

Does the bolt rotate?


There are a few ways it can get stuck. The washers can get stuck to it (in which case the bolt should rotate) or worse case, it can get stuck to the frame (in which case the bolt won't rotate)


It shouldn't be long before RD comes on hear and tells you to cut the bolt

 

yes the bolt rotates tried turning bolt and hiting at the same timewith club hammer no joy

 

If the bolt rotates, that is best case. The Bushing sleeves and/or washers have rusted to the bolt.


The Bolt will need to be sacrificed (it was bad anyway), but at least your frame isn't corroded/frozen.


You'll need to cut the bolt.

 

Here is a thread with pictures

 

I take it the best way to cut the bolt would be with a angle grinder where would be best
place to cut bolt .I also have a bit of play in the bolt holes running through the mounting(sub frame) is this a problem

 

Don't know if you cut it yet, some other ideas to knock it out.

1) don't let the washer walk into the brake lines holder protruding. Keep pushing it back as you go.

2) I hope you have not released the lower shock bolt yet leave it there. When lose, wishbone takes all weight.

3) I've used sledge hammer on end of bolt, slide it into contact.

4) has it moved at all? If no, suspect the washer corroded onto bolt shaft. Douse it in wd40.

5) spray wd40 along all exposed bolt areas it will pay off.

6) I can't think of a more effective way to move it than wacking the bolt end - till it disappears in the bush. Now, either use a 3/8 inch 2 inch wratchet extension to push the end, otherwise take a big solid open end wrench place it under the bolt head. Use your sledge hammer to hit this wrench up by the head. Transfers energy into bolt head to slide it out.

Btw - once you cover it in wd40, spin it with your impact wrench. Will distribute solution entry and slip characteristics into and under washers.

I've seen some tough ones, never saw one that will spin but can't be moved with hammer impact. Good luck.

John

 

thanks john tried with club hammer don't think I would be able to hit with sledge not
enough room

 

If the nut came off, use a large flat screw driver to pry the nut side of the bushing off out of the wishbone.

The upper bushing are an assembly of pieces and you want to see if the nut side bushing sleeve can slide off the bolt. With the nut slide bushing flange pried off, you can also see if you can spray lubricant between the sleeve and the bolt.

If you can get the nut side bushing sleeve loose, you'll only need to cut the bolt on the bolt head side, instead of both.

 

Depends on how much is 'a bit of play'.

This is usually caused by the bolt rotating in the subframe once the bush assembly seizes onto it as Ungn says. The design is that the bolt should pinch the bush inner bearing onto the subframe and not move.

You'll need to check the ovality of the holes in the subframe once you get the bolts out. If you're not getting any undue noises at the moment you may be OK, but if the wear is significant then it must be addressed.

I'm sure one of the gurus will advise with what is acceptable.

Good luck - hope it's not too painful. Use lots of anti-seize on the pivot bolt when you do the rebuild

HTH,
Mike

 

Significant play in the upper wishbone pivot would not be good. That is one of the reasons why sacrificing the bolt is a probably a better option than banging steel into aluminum until the metallurgically bonded steel fractures.

Aluminum makes for a pretty sub-par anvil.

 

Cut it off, the job will be done in 10 minutes vs hours of pounding, oiling, pounding, then cutting it off.

Buy a second hand bolt and the job is done.

 

+1

It rotates - you've got off lightly.

BUT - take careful note of the placement of the shims. You want to rebuild with them in the same locations.

Graham

 

Thanks guys I'll be having another go today I'll let you.
Now how I get on

 

Hi guys the nightmare continues I've been trying to cut
Bolt with small angle grinder but can't cut deep enough
Maybe I'm being stupid can you tell me the method you
Have used I've uploaded some pictures so you can see
Where I'm at also I'm concerned about pipe work
Running behind bolt

 

You'll have a lot more room to manoeuvre if you remove the wing liner:



Also the section you can see inside the crossmember is the fulcrum bolt - it's not a sleeve. It can be cut with the shock absorber out of the way.

Graham

 

Thanks Graham think I was having a bit of a blonde moment I should be able to turn the bolt and cut through
The other side think I may need to get new shims as well
Don't understand how washers effect the camber though
Heading out there soon I let you now how I get on

 

In similar situations I have used a metal drill bit starting small to center the hole and going bigger as appropriate.

 

Washers are for Caster.

 

hl jack l managed to cut threw bolt on the thread end lnside the wish bone rotating bolt
after each cut that allowed me to nock bolt towards the front of the car it came to a stop
drawing it back slightly l noticed some burs on the shaft of the bolt of to b&q picked up
a set of grinding bits that go in a drill like using a dremmal ground of burs and it slipped straight out