ZF Limited Slip testing question

[ken180]

Testing a 80% ZF Limited Slip

The Porsche repair books say hold the LSD body in a vice and see how much torque it takes to turn one axle stub.

914 book says 50 ft/lb.
911 book says 80 ft/lb.

Also found a note that says put one axle stub in a vice and check the torque at the other stub, LSD body "floating". Should measure more than 25 and as high as 75 ft/lb.

I measure 150 ft/lb. using the one stub method.
and
40 ft/lb. if I check stub to stub.

Comments?

Thanks,

Ken

[pwd72s]

bump! Hope John Walker sees this...

[ken180]

Hope anybody with some experiance see this.

Ken