Repair Manual Question - Engine Torque Values

[MJN]

Originally Posted by Robert Crandall

Thank you very much for this and also for the link. I printed the page for my book.

I found somewhere on this forum 80 in lb for the 1/4 inch bolts and 165 inch lb for the 5/16. This new page shows the same 80 in lb for the 1/4 inch, but shows 75 in lb for the 5/16. Less than the 1/4 for the 5/16 does not seem logical.

I chose 50 for the 1/4 and 75 for the 5/16.

Its not all about the fastener size, take into account the gasket material and where on the engine its used as well. The timing cover uses a paper gasket where rocker covers or oil pan used cork gaskets. The cork gaskets would have a lesser torque value to avoid crushing the gasket even with a 5/16 fastener.