MGTF PolyBush compliance bushes
- Freshmemes
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Can it be done with the bushing holders on the car with a simple threaded bushing press/puller?
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i considered this job and read Roger Parker’s book on some of this stuff and may even have talked to him about it.
In simple terms you need a press to push them in.
To get them out you need to hacksaw through the old bush rubber, then saw the sleeve to the shell surface before knocking the sleeve out.
when you press them in you need a purpose built support for the shell of one of them (the fabrication is set at an angle)
For a reason that I can’t remember you have to drop the subframe about 2 inches to get clearance for some bolt.
There is a high probability of shearing the small bolts and the need to weld in replacement ~ depending on rust etc.
That is my take on the job. A right ****””#
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- Freshmemes
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- Freshmemes
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I obtained some spare bushes (metalwork) and cut out the rubber bits . Those needed more than a gentle tap to get them moving. I made a timber support to hold the one with the angled base so it could be supported in line with the axis of the press - very useful apparently as stated by the workshop that did the job.
The workshop had one heck of a job in getting the bolt out of one of the bushes - don’t know which one. As stated one of the nuts used to support the subframe had to be replaced as the bolt sheared off (not unusual apparently).
As observed by Goodwood the new bushes made little if any difference that I could detect.
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- Freshmemes
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- Freshmemes
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"Keep calm, relax, focus on the problem & PULL THE BLOODY TRIGGER"
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- Freshmemes
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At least from what I can see from the design of the bush it seems more of an issue of the suspension design. As all of the lateral arms allow rotation in more than one direction, the job of constraining the rear Hub's rotation around that axis is also one by the trailing arm, and as the arm is only fixed at on place this also doesn't fully constrain it. that is in my mind why there is a flat plate on the trailing arm where it sits on the bush to stop it from 'complying' left and right as it were. this naturally over time wears down the rubber it sits on till it reaches the metal.
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"Keep calm, relax, focus on the problem & PULL THE BLOODY TRIGGER"
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