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NorthStar head bolt questions
Do the head bolts need to be torqued down again after they have been installed and the engine used ?
How about if time-serts were used ?
Looking down into the bolt holes, how can one tell if an engine has time-serts ?
The head bolts don't need to be retorqued after running. There is a sealant on them and there is no easy way to retorque them. I think the retorqueing has been eliminated with newer head gaskets.
If you look at the thread holes you will see a different colored (steel) ring in the aluminum. That would be the timesert.
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