[Rennen]

Originally Posted by slbates

Time for a rebuild. If you can see the kiss on the top of the piston, the valves are inevitably bent. How bad was the over-rev? Excercise caution if you only do a top end. The over-rev can also cause the rods to lose a bit of their shape resulting in insufficient bearing crush (not to mention stretched bolts). A friend bought a car with a fresh $7k documented top end rebuild (seller disclosed was the result of a missed shift) and 2k miles later he lost a rod. tear down found 2 spun bearings in addition the the thrown rod! Diagnosis was loss of bearing crush from the original over-rev.

It is possible to diagnose these things while I've got it out and apart if I'm only planning a top-end rebuild or are you suggesting a full tear-down is the kind of caution I should take?