Rear Diff bushes, how I did it with pics
Discussion
paramount1443 said:
Anybody help ?
How do you remove the rear diff on a 1998 TVR Chrimaera 4lt
Thanks,
Dave
It is a pig of a job next to a cerb, some cut a access hatch in the parcel shelf to get at the rear bush.the bush is 90 degrees out from the cerbs it sits length wise in the car, Good luck.How do you remove the rear diff on a 1998 TVR Chrimaera 4lt
Thanks,
Dave
Edited by scotty_d on Wednesday 5th December 16:20
I am currently the custodian of Peter's drift. However, it looks like I'm the first person to use it in anger, and so far all I've managed to do is accidentally hit the bodywork with the sledgehammer. The bush itself has not moved a millimetre. I have decided that the only viable course of action is to drown my sorrows.
I would post photos, but the camera battery died - it's been that sort of day.
I would post photos, but the camera battery died - it's been that sort of day.
If your bush is jammed in there as tight as mine was, you will never shift it with a drift. I needed to collapse the outer tube inwards in order to remove it. It was a 2 stage process. I used an old chisel with a wooden handle , heated up with a blowtorch to burn/dig the inner tube of the bush out. I didn't fancy heating it directly with the fuel tank so close, but heating the chisel to red hot and using that to get out the centre tube worked surprisingly easily.
Once the centre tube was out I ground a triangular point on the end of a long steel bar, inserted it through the wheel arch, so that one edge of the point was against the bush outer sleeve in such a way it would bend it inwards towards where the centre tube had been. Considerable braying of the end of the steel bar managed to fold the sleeve enough to release it from the carrier and eventually the remains pulled out by hand.
There is no way a drift would ever have moved it as the outer sleve had rusted and expanded to jam it in the carrier. I managed to snap an M14 High Tensile bolt trying to get it out with a void bush remover and a long lever!
Once the centre tube was out I ground a triangular point on the end of a long steel bar, inserted it through the wheel arch, so that one edge of the point was against the bush outer sleeve in such a way it would bend it inwards towards where the centre tube had been. Considerable braying of the end of the steel bar managed to fold the sleeve enough to release it from the carrier and eventually the remains pulled out by hand.
There is no way a drift would ever have moved it as the outer sleve had rusted and expanded to jam it in the carrier. I managed to snap an M14 High Tensile bolt trying to get it out with a void bush remover and a long lever!
pmessling said:
Could try heating the outside up to break the rust holding it then use the drift.
I must have been very lucky as mine come out very easy.
The end of the drift has mushroomed where I've been hitting it.I must have been very lucky as mine come out very easy.
The outside edge of the bush sleeve has folded over slightly, but only on one side, as you know you don't have perfect line of sight.
The inner sleeve is free to move, but I've left it in place for now as its needed for the drift to locate correctly. Once I remove it and start working away at the rubber then I lose the option to use the drift.
I put some shielding on the tank and just used a hobby blow torch to burn out the rubber, then I used a hacksaw blade with tape on each end to saw through the outer case, I then used a impact flat head screw driver on the massive extension out the wheel and smashed it a few times with a huge mallet!
It gave up the fight in the end.
It gave up the fight in the end.
I feel your pain!!
I know it'll be slow going but I found the only way of shifting mine was to gouge out the rubber & set to with a hacksaw blade.
Mine was done with the body off and even then it was a right sod. Braying the fecking thing with good access and a fecking big hammer didn't shift it.
Good luck...
M
I know it'll be slow going but I found the only way of shifting mine was to gouge out the rubber & set to with a hacksaw blade.
Mine was done with the body off and even then it was a right sod. Braying the fecking thing with good access and a fecking big hammer didn't shift it.
Good luck...
M
Here's Peter's drift in action, it's very well made and may well work straight off for some people, I wasn't so lucky
Instead I used a 20" screwdriver to try to separate the rubber from the outer part of the bush. It took me a couple of days to realise that I needed to sharpen the pointy end with a grindstone, and eventually the rubber collapses. This was the most torturous part of the job.
Once the rubber was gone I could start attacking the outer sleeve with Tanguero's pointy steel bar (if only it were a little longer, but beggars can't be choosers)
Then I decided it was worth giving the drift + sledgehammer approach another go, and I was not disappointed. Bear in mind that I had previously spent best part of 3 hours hitting it before and there was no movement at all.
Once the drift had done it's job, all I had to do was extricate the drift! That took best part of 45 mins, not that I'm complaining, I really couldn't have faced having to slice up the bush outer with a poorly wrapped hacksaw blade.
The culprit, all for the sake of not fitting a split poly bush in the first place.
Don't get me wrong, even fitting the poly bush is going to be a bit awkward, mainly because the bracket is going to get in the way, but that can wait. Now I'm enjoying a well earned curry.
To do this job I drove 300 plus miles to pick up tools (and parts) that were generously lent by other PHers, I made a number of SOS telephone calls, and I made my gf feel sorry for me. What a lightweight!
If I hadn't hit the car with the sledgehammer I would have counted this as a success...
Instead I used a 20" screwdriver to try to separate the rubber from the outer part of the bush. It took me a couple of days to realise that I needed to sharpen the pointy end with a grindstone, and eventually the rubber collapses. This was the most torturous part of the job.
Once the rubber was gone I could start attacking the outer sleeve with Tanguero's pointy steel bar (if only it were a little longer, but beggars can't be choosers)
Then I decided it was worth giving the drift + sledgehammer approach another go, and I was not disappointed. Bear in mind that I had previously spent best part of 3 hours hitting it before and there was no movement at all.
Once the drift had done it's job, all I had to do was extricate the drift! That took best part of 45 mins, not that I'm complaining, I really couldn't have faced having to slice up the bush outer with a poorly wrapped hacksaw blade.
The culprit, all for the sake of not fitting a split poly bush in the first place.
Don't get me wrong, even fitting the poly bush is going to be a bit awkward, mainly because the bracket is going to get in the way, but that can wait. Now I'm enjoying a well earned curry.
To do this job I drove 300 plus miles to pick up tools (and parts) that were generously lent by other PHers, I made a number of SOS telephone calls, and I made my gf feel sorry for me. What a lightweight!
If I hadn't hit the car with the sledgehammer I would have counted this as a success...
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