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Technical
Piston Weight
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<blockquote data-quote="Pellwood" data-source="post: 595145" data-attributes="member: 21178"><p>I am doing a top end rebuild and was wondering about the tolerances for piston weights.</p><p></p><p>I have a set of Mahle cast pistons including pins & rings with 3 that weigh 504 grams and one that weighs 498 grams.</p><p></p><p>Is the difference between them acceptable or should I machine the other 3 down to the weight of the lightest piston?</p><p></p><p>I know that ideally in order to balance an engine you should include the weight of the entire reciprocating mass, which means the con rods as well but I don't want to split my case. </p><p></p><p>Any thoughts ?</p></blockquote><p></p>
[QUOTE="Pellwood, post: 595145, member: 21178"] I am doing a top end rebuild and was wondering about the tolerances for piston weights. I have a set of Mahle cast pistons including pins & rings with 3 that weigh 504 grams and one that weighs 498 grams. Is the difference between them acceptable or should I machine the other 3 down to the weight of the lightest piston? I know that ideally in order to balance an engine you should include the weight of the entire reciprocating mass, which means the con rods as well but I don't want to split my case. Any thoughts ? [/QUOTE]
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