another annoying torque spec question

[slawless]

I just changed the rear transmission support. (E92 M3 6sp) There are 2 bolts that hold the rubber transmission mount and 4 bolts that hold the aluminum crossmember to the frame. all the bolts are 13 mm. I looked around, it seems all the bolts have the same torque spec, about 19 Nm (15 FtLbs) That seems OK for the bolts that hold the rubber transmission mount. It just doesn't "feel" tight enough for the bolts that hold the aluminum crossmember to the frame. If you have done this before I would appreciate a little reassurance or the correct torque spec.

Then again the 10 Nm that hold the thermostat in place seemed low. but it hasn't fallen off yet.

Thanks

[Solo_M_Tech]

Originally Posted by slawless

I just changed the rear transmission support. (E92 M3 6sp) There are 2 bolts that hold the rubber transmission mount and 4 bolts that hold the aluminum crossmember to the frame. all the bolts are 13 mm. I looked around, it seems all the bolts have the same torque spec, about 19 Nm (15 FtLbs) That seems OK for the bolts that hold the rubber transmission mount. It just doesn't "feel" tight enough for the bolts that hold the aluminum crossmember to the frame. If you have done this before I would appreciate a little reassurance or the correct torque spec.

Then again the 10 Nm that hold the thermostat in place seemed low. but it hasn't fallen off yet.

Thanks

I use a 3/8 electric impact from snap on for those trans bolts and they get about 3 ugga-duggas.

Dont stress the torque specs on stuff like that. tight is tight. move on.

[roastbeef]

^ yep. snug those guys down and forget about it.

[StripclubDJ]

German spec is gudntight