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Lancia Gamma Forum
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Lancia Gamma Forum
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From: Theo
email: theo@gamma.fslife.co.uk
Date: 06 Apr 2006
Time: 15:12
I don’t have specific knowledge of this subject but I’ve been told by many people that one of the main reasons for frequent head gasket failures in Gamma engines is cylinder liners sinking into the block (I use the word ‘block’ here but I know there’s no true block in a Gamma engine). The liners are meant to protrude at the top by 0.067 – 0.127 mm according to the manual. If the liners sink into the block then presumably the combustion process can damage the cylinder head gasket. Barry Waterhouse once told me that they rebuilt a Gamma engine and drilled small holes at the top of the liners and used pins to hold them at the correct height. Barry claimed that that engine managed high mileages without a gasket failure. I suppose the idea of using aluminium sealing rings rather than the flimsy paper things makes some sense as it may ensure that the required top protrusion of at least 0.067mm is achieved but I don’t think it will stop the liners from sinking if they decide to do so.
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