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7Hp OHV Briggs & Straton Craftsman Front Propelled Smokes

Engine smokes and uses oil even after cleaning blowby valve. Are valves allowing oil to get into cylinder? Whers do I start please?

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Sounds like it is the valve seats. However normally it will stop smoking after is runs for a while if that is the problem. Does it run good? Because if it isn't the valve seats then it is the rings. Or a big scratch in the cylinder wall. Then most of the time it will loose compression. If it isn't smoking real bad then you can get an additive to put with your oil that will make it stop, maybe? It is about ten dollars and you can get is at most autoparts stores. It will just take a couple ounces of it. Follow the directions for how many qts of oil you have. After you change the oil in the motor take a magnet and run it through the oil and see if there is pieces of the rings in it.

Posted on Jul 12, 2010

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Posted on Jan 02, 2017

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