Just realized I've been torquing head bolts wrong for years...

Was helping a buddy with a Cummins rebuild and he pointed out my torque sequence was way off. I'd been going in a circle instead of criss-cross pattern since trade school. Anyone else have a moment where they found out they missed something basic like that?

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richard_anderson2mo ago

Man that stings. I did the same thing with main bearing caps for like five years before a machinist set me straight. Felt like a total hack when he showed me the correct pattern. But hey at least you caught it before something let go, that's the important part.

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cole3562mo ago

Read somewhere that torque sequence errors cause a surprising number of rebuild failures.

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