Mower blowing white smoke and oil from exhaust and oil smells like gas

I was having problems getting mower to start. Got another battery and replaced the plug which was all black. It started and blew out a lot of white smoke and oil is spewing from the exhaust. One of the exhaust manifold bolts was broken and oil was coming out there also. I checked the oil level and the oil appears to be very thin and smells like gas. Tractor has definitely not been tipped over. Is this a blown head gasket or another issue?

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White smoke can be the result of a serious issue like a blown head gasket, a damaged cylinder head, or a cracked engine block

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Thanks - this is probably a stupid question but is there a relatively easy way to determine this. Could blown head gasket also account for the gas in the oil.


Yes, that can happen but sounds more like ring problem.


I had similar problem with gasoline getting in oil. Turned out to be a carb problem. Float was sticking and not sutting off the flow of gasoline from the tank. Carb was overflowing gasoline into the oil. Solved the problem on temporary basis by shutting off the gas valve in fuel line when motor was not running.


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