Re: Torque specs

Posted by Owen_Dyneto On 2008/3/16 10:08:35

Standard tables of torque ranges for different thread size and grades of bolts, while useful, don't always provide the correct answer for a particular application. For example, engine main bearing bolts are generally capable of higher torque and thus clamping force that what the manufacturer recommends they be tightened to. Another other factor which comes into play is an appropriate clamping force without distortion of the fit. That said, sorry Randy I don't have an answer. Checking an old transmission installation would be a reasonable idea if you knew that it hadn't been dissassembled since it left the factory. Fifty or 60 ft-lbs sounds like a lot to me for a 7/16 NC fastener going into cast aluminum.