Quote:
Originally Posted by Ultramaroon
I believe, for the fa20, the weak link from an acute over-rev is between the wrist pin and piston. The holes stretch and give up the ghost. It has been covered here a few times.
Which astonishes me considering the floofiness of the valve springs. The valves must be super light.
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Holes stretch? From force or heat/friction? Acute overheating would cause metal expansion, right, and lubricants to heat to dangerously thin levels resulting in metal on metal contact? If that is what we are talking about then could that much heat really occur in a second or two max? I can't see it happening.
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