This happened to me a couple of times. Each time that it happened,it was the mechanical fuel pump on the side of the motor. The diaphragm is more than likely cracked and leaking. You will need to drain your oil and replace your oil filter. You will also need to replace the fuel pump. I do not know if you can buy the diaphragm for the fuel pump or will have to replace the whole fuel pump. I have seen it happen to others too. They also just replaced the fuel pump. When it happened to my Case 450 crawler, the gas tank on the back of it, was higher than the fuel pump. It allowed ten gallons of gas to leak into the oil. When I started it up, it blew oil out of the exhaust. I was soaked with oil and gas. It started right up with no problem, but after the oil blew out, I turned it off. I would suggest when you drain the oil, you put a little diesel fuel in the motor to wash out the gas. You might want to leave the plug out of the oil pan, and the oil filter off for a couple of days, to let the gas evaporate off. Hope this helps. Please post updates, so I know if this works for you. Bob
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Today's Featured Article - Madison's County - by Anthony West. Philip Madison has been a good friend of mine for quite some time. He has patiently suffered my incessant chit chat on the subject of tractors for longer than I care to remember, and on many occasions he has put himself out, dropped what ever it was he was doing, to come and lend a hand cranking handles, or loading a find onto a trailer. Although he himself has never actually owned or restored a tractor, he was always enthusiastic and always around helping with other peoples projects.
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