Torsion Bar Indexing - Reference Point

[Jonny944CS]

Hello All,
I'm wondering if someone may be able to help me.
I am currently in the process of building up the rear torsion beam from a pile of parts. I have 25.5 T-Bars with aluminium trailing arms. Both the Porsche workshop manual and Haynes list angular values for the spring strut angle setting position i.e.

944 T M030 = 18º

968 Coupe = 18º
968 CS = 14º
968 CS M030 = 9º

My question is, does anybody know the reference feature on the T-Bar assembly from which these angles are taken????
I should really have marked things up better before taking it all apart[&:]. However, lots of plating and powder coating later, I am now looking for some sort reference to start from.

Thanks in advance,
Jonny

 

[PJS917]

If you have an electronic angle gauge it is quite easy to set the angles, with the beam held level in a vice
and a zero reading taken from the top/highest mounting point of the beam, you can then measure the angles
from the flat top of the spring plates just above where they bolt onto the trailing beam. Don't forget to lift the spring plate up as it will sag slightly when not under load. I hope that helps.

 

[Jonny944CS]

Hi Peter,
Thanks for the info; funnily enough I think I bought the T-Bars from you a couple of years back!!!
I have a bubble level angle gauge, which seems to be OK.
So if I understand correctly, this is how to set the beam up: