Thread: 3.3 Blew Up!!!
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supradan supradan is offline
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Join Date: Mar 2004
Location: Chicago
Posts: 126
Quote:
Originally Posted by JFairman View Post
There are lines of carbon from combustion leakage around most of the head to cylinder sealing surface on the top of the cylinder. It would help to see the combustion chamber side of the heads too.

My guess is the head studs were not torqued correctly and they loosened up more over time duting running and heat cycles and this eventually happened.
Combustion pressure was leaking - you can see that from the carbon trace lines going outwards from the center all the way around on the cylnder deck sealing surface.
JFairman,

You are making a very good point. Below is a pic of the head.
Old 09-18-2011, 06:42 PM
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