11-26-2018, 08:54 AM
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CC Member
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Join Date: Jul 2010
Location: Augusta,
MO
Cobra Make, Engine: Sold ERA FIA 2139, 331 Weber IDF
Posts: 279
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Not Ranked
blykins is correct, some one piece gaskets have raised sealing ribs on both sides, if you try to mate an embossed pan rail with a raised ribbed gasket on the pan side it is going to leak. Also, most one piece gaskets I have seen have metal rings around the bolt holes, this prevents deforming the gasket and pan by over-tightening. If your pan rail is already deformed from years of service then the metal rings will prevent the gasket from sealing and it will leak.
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