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930LDR 930LDR is offline
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Join Date: Dec 2004
Location: Danville - CA
Posts: 1,259
Piston / Head Damage

Heads and cylinders came off this weekend and I found broken rings on three of the pistons. On the corresponding heads and pisotns I found some damage. Curious to see thoughts on what may have been the cause and what the potential solutions may be.

A couple of the heads have pock marks on the inside surface. Is it possible that these are the result of small fragments of rings being blasted around inside the combustion chamber? On the pistons that had broken rings it also looks as though certain portions of the smooth finish and edges have been worn away leaving a porous surface.

Thoughts and opinions are appreciated.



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Rob Montgomery
'88 Blk/Blk 930 ('Lucy') - Not Stock & Not Running
Old 02-20-2011, 08:59 PM
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