Thread: The icepick
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BoxxerSix BoxxerSix is offline
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Join Date: Jun 2006
Location: Ballston Spa, NY
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Quote:
Originally Posted by William930t View Post
I tend to side with Adam, though further investigation is needed. The depth and total coverage of the marks look like something rattling around in the chamber. Not much carbon crust either. I wonder how the valves and cylinder dome looked?

Exactly. The bad injector causing the lean condition may have lead to part of the piston breaking off and causing that damage, but no way did the actual detonation shock wave do that. Preignition results in holes melted into the dome and ringland transitions. Detonation results in chunks/cracks/particles that can do the damaged pictured above....either that or some part of a(burnt) valve or plug electrode/ceramic, or foreign object ingestion.
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Adam Hennessy
Old 11-26-2007, 11:26 AM
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