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Old 02-22-2013, 06:46 AM
cliff tate cliff tate is offline
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piston rings

molley(plasma sprayed ) ar the best. a example i have is when i was s.maneger cat dealer,they inther wisdom went to chrome top ring, in stead of molley in lower output engines. this resulted in maney failures of new and rebuilt 34 12 3408 engines.they did not make dealers aware of the change.the 3406 inline engine which made more hp per cyl had no failures.we fialy twiged to cats change.re rung all with molley rings end of problem. I in retiement do a few engines per year,i will only use molley rings,tho 1 must use the corect hone for the supper fine cyl wall finish.all 3208 cats with 2 ring pistons used molley rings,jobers tryed chrome,poor life and failure in high load use.
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