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Bolt Torque Specs


ambler

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I'm putting a tractor together right now and I want to do it right. What is the best practice? I wire brushed the old engine mounting bolts. I believe these are grade 5 3/8". by the simplicity chart should these be torqued to 30 ft lbs? Should fasteners be lubricated, Use new fasteners? I found reference to drive shaft bolts to torque to 20 ft lbs even though they are grade 5 3/8ths.

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I use locknuts on my engine bolts, that way I don't have to worry about high torques. Just make sure that the torque on all bolts are approximately the same.
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What about using loc-tite to keep nuts from backing off? Also, I tend to use anti-sieze when I reassemble something. Seems to really hold off corrosion. Those torque values sound right to me for that size bolt.
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