Question about Craftsman 21 Hp 42" Deck, Ys 4500 Lawn Tractor

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Craftsman Riding Mower burning oil

It began a month ago burning oil faster than we can keep it filled. We get alot of smoke when we start it now. Any suggestions? Thanks.

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Hi,,my name is Keith..and i hate to be the bearer of bad news..but im 99% sure you have broken a ring(s) on your piston..and 1% sure that you have a blown head gasket..i hope this will help..if not please write me back

Posted on Jul 02, 2009

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Posted on Jan 02, 2017

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There are other reasons, engine over filled with oil, engine breather blocked, engine worn.

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Sounds like the rings are worn and letting oil escape past them into the cylinder head. After all, it's been in service a long time. There are several options, including a rebuild with boring out the cylinder and put oversize rings in, buying a new engine and replacing the old one, or just buying a new mower.

Sirwriter

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