sjg1138

I dont know why I have such a hard time finding Torque Specs for my 1999 996 Cabriolet.

Does anyone happen to know the torque specs for:
1) Upper transmission carrier nuts
2) Lower transmission carrier nuts
3) Transmission mount Bolts

I have the Function First transmission mount inserts installed and am ready to torque down everything but I dont have the figures....

Thanks for the help.

Ahsai

All are M10 bolts, right? If so, they are all 48ftlb (from Bentley manual).

sjg1138

Thanks.
Yes, M10s except for the mount bolts which are M15s. I read somewhere that the mount bolts are 63 ft-lbs... Does that make sense?

Ahsai

M15 means the shank of the bolt is 15mm in diameter. That's not a common size. Are you sure?
I know there are M14 and M16 bolts...

sjg1138

Sorry. My confusion. The heads of all the bolts are 15mm. I have no idea what the diameters of the shanks are.

Ahsai

Sounds like M10s then. You can easily verify by measuring the shank diameter of the bolts and they should be 10mm.

sjg1138

You are correct as always! I went through the official Porsche Work Shop Manual and the Spec is 65 nm (48 ftlbs). Thanks again.

Ahsai

Trust but verify