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Spring plate/siezed torsion bar

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246jaenick

New member
Can anyone help?
I am in the process of totally restoring a 1970 Porsche 911T and have come across a real problem separating the
nearside rear torsion bar from the spring plate (totally siezed).
I have tried heating up the spring plate around where the the torsion bar spline is positioned.
I have tried and failed using a small puller, (spring plate end cap removed).
I have tapped with a hammer all around the spline housing to try and break the possible rust seal.
I have also reverted to brute force using a small lump hammer and a large soft drift to try and drive the torsion bar out.
The only way/s I can see of getting the 2 components apart is either (drastic action), by cutting through the torsion bar or destroying the spring plate.

If I have to destroy one or the other of these components is there somebody in the Porsche club that might have these
parts for sale?
The torsion bar diameter is 23mm.

Regards.
Jim.

 
Perhaps try a week or two of penetrating oil applying it two times a day. If it is that badly rusted and seized you could well find the splines are too bad to use them again anyway.

Ian.
 
Ian,
Thanks very much. I will try the penetrating oil route but like you state, the splines will almost certainly be eaten away by rust.
Regards,
Jim.
 
Finding a replacement torsion bar will be easy, so don't worry about cutting the bar then using a press to get the stub out of the spring plate. Before you do that, try drifting the torsion bar into the torsion bar tube, it will come right out the other side.
 
Nick,
Thanks for your response. As a last resort before I cut the torsion bar I will make up a small bespoke press to try and push the bar out. It will be a combination of a steel plate that fits around the torsion bar
at the back of the spring plate and an old small flywheel puller.
I will let you know how I get on.
Regards,
Jim.
 
Colin,
Thanks for your e-mail. Unfortunately I live near Portsmouth which is approx. 450 miles from you.
Regards,
Jim.
 
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