rear suspension
rear suspension
Author
Discussion

alan c

Original Poster:

29 posts

273 months

Monday 3rd March 2008
quotequote all
Hi Iam fitting new poly bushes to the suspension on my 96 griffith.
I used heat to knock out the old bushes, with the wishbones on the bench.
What is the best way to disconect drive shafts to remove the rear hub carrier,

spend

12,581 posts

281 months

Monday 3rd March 2008
quotequote all
Just remove the 6 allen bolts that hold the drive shaft, clean them out first..

Dave

alan c

Original Poster:

29 posts

273 months

Monday 3rd March 2008
quotequote all
From the hub end or diff side

spend

12,581 posts

281 months

Monday 3rd March 2008
quotequote all
Depends which bit you want? same connections at both ends of drive shaft - all the bits are pretty heavy though!

Dave

alan c

Original Poster:

29 posts

273 months

Monday 3rd March 2008
quotequote all
Dave, thanks for info;
Alan

crackedfinger

1,569 posts

259 months

Monday 3rd March 2008
quotequote all
You can do it wth the hub carriers in place, i did, bit fiddly, but easy enough. Less to disconnect.

TheGriffalo

72,863 posts

269 months

Tuesday 4th March 2008
quotequote all
bounce Time to show off my toy again biggrin

You need one of these, any decent local machine shop will make one up for you. Takes about ten minutes per bush to get them out. No heat, no drilling, no hacksawing. Just pop it on, tighten it up a bit and then tap it. Repeat to fade biggrin They are an absolute doddle to get out yes

Works on the bench and on the car... Will even get the lower rear hub carrier ones out if you use a long bar and assert the force across both lower bushes at the same time.






DarkMatter

1,503 posts

261 months

Tuesday 4th March 2008
quotequote all
TheGriffalo said:
bounce Time to show off my toy again biggrin

You need one of these............
That's a smart bit of kit Rob. Do you have any drawings/dimensions you could publish which others could take to a machine shop to get one manufactured?

Thx. Andrew.

TheGriffalo

72,863 posts

269 months

Tuesday 4th March 2008
quotequote all
Who needs CAD when you have ingenuity on your side biggrin

I'm supposed to be writing this up properly but in the meantime this might help if you can see it. If anyone can do a proper CAD drawing so that others can benefit in future that would be brilliant.

Top tips!

1)Use high tensile threaded bar, not normal mild steel. You'll need at least 1M and maybe more as it can strip the threads occasionally. You will also need a few new M10 nuts! Cut off about 300mm and use this as it saves running the nuts excessive distances.
2)Liberally grease the threads and keep them clean to prevent 1).
3)You're not trying to just push the bushes out, the tool applies compression then you use a bit of percussion to loosen them. it's a combination of forces that shifts them.
4)Although the tool pretty much self aligns it is important to ensure all the force is going into the bush and not the wishbone itself! (see point 1) biggrin
5)To remove the lower hub carrier bushes use a long piece of M10 HTS and thread it through both bushes then fit the tool on the outside and press the bushes inwards one at a time. This is because the outer part of the tool fouls the inside of the hub carrier. (Makes sense when you're actually doing it)




ETA:
I can't dimension the chamfer properly because I can't find my engineering protractor frown I do know it waists down to leave a 3mm flat surface to press against the wishbone and extends 8mm. Any Pythagoras experts about? biggrin

Edited by TheGriffalo on Tuesday 4th March 10:46

crackedfinger

1,569 posts

259 months

Tuesday 4th March 2008
quotequote all
TheGriffalo said:
bounce Time to show off my toy again biggrin

You need one of these, any decent local machine shop will make one up for you. Takes about ten minutes per bush to get them out. No heat, no drilling, no hacksawing. Just pop it on, tighten it up a bit and then tap it. Repeat to fade biggrin They are an absolute doddle to get out yes

Works on the bench and on the car... Will even get the lower rear hub carrier ones out if you use a long bar and assert the force across both lower bushes at the same time.





It would of been a lot easier to do them in situ with this pirce of kit (!)

DarkMatter

1,503 posts

261 months

Tuesday 4th March 2008
quotequote all
Thanks Rob for the diagram and Top Tips!

Andrew.