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Originally Posted by Lupin..the..3rd
They say to torque them to 60 lbs, then loosen. Repeat that five times, but torque to 80 lbs on the last time. What's the reason for this re-torquing each one five times? Seems a bit excessive, but what do I know. Any thoughts on why they would recommend such a procedure?
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They recommend it because it works. No really. The process stretches the studs compresses the head gasket, and ensures the correct final torque. They don't say this in the instructions, but meticulous engine builders will wait 30 minutes or so between torque and release. This lets everything settle, which is exactly what you want.
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