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Trackrash Trackrash is offline
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Join Date: May 2007
Location: Sebastopol, the land of wine and redwoods in The Republic of California.
Posts: 5,563
Garage
No broken studs? Amazing.

Perhaps the #5 exhaust valve hit the piston? Weak valve spring? Usually an over rev will hit more than one valve. Probably should check and possibly replace all the exhaust valves.
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Gordon
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'71 911 Coupe 3,0L outlawed
#56 PCA Redwood Region, GGR, NASA, Speed SF
Trackrash's Garage :: My Garage
Old 11-14-2017, 10:35 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #5 (permalink)