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Oil from exhaust pipe

B

Bkpigs

Member
Ok, so I am going to look at a Farmall A tomorrow. He said that earlier this summer he was mowing when oil started coming out of the exhaust pipe. He shut it down and pulled it into the barn.

What do you think is the problem? I know this is like hitting a dart board in dark but what is your guess?

Mine is either a boken valve or valve guide.

If I get the tractor and figure it out I will let you guys know the result (may be a while though).
 
im in agreement with ring failure or maybe a head gasket oil passage failed to cylinder. could be the oil level is to high causing it ot pump oil. good luck, d.coleman
 
Ring failure was my first notion. But then I got to thinkin' if it was the rings, they would let the compression and combustion gases through to the crankcase. Therefore, with the gases going down there would be little opportunity for the oil to go up. Right?
 
head gasket-- water or anti-freeze will look like oil on the hood-- he was mowing,tractor fuel was wide open,mabe a little low on water
 
It could be what is called wet stacking. If the engine was carboned up some from idle operation, or a rich mixture and short operation times never getting warmed up, when it is run a little harder, but in the morning the carbon can mix with condensed water vapor (what comes out of your car's tail pipe every day) and deposit itself on hood cloths and skin. There may be nothing wrong. It does not appear as smoke, just droplets of oil looking black that leave deposits of black spots that are difficult to remove. If the spots are there, and will rub off some what without being oily, that is likely to be the issue, which is no issue. But if he sells it to you, don't rip him off. He will be very irritated when seeing you work the tractor hard within a day or so. Working it hard is what it would need if wet stacking is the issue. If it is a real oil user, broken rings or a holed piston are most likely. A head gasket is possible as is a cracked head, but my opinion is to check for the wet stacking. Jim
 
I had this happen with a 52 Farmall H. Good compression,135-140 on all cyclinders. Started good and good power for riding around and shredding. It did use oil about a quart in 8 hours. Plugs would oil foul after about 4 quarts. I finally sold the tractor to a buddy, he knew all about it, when he rebuilt it found that the pistons and sleeves where just flat worn out. We suspect that it had been reringed several time in it's life.
 
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