Posted by Paulinkansas on March 17, 2009 at 11:52:09 from (64.254.39.247):
Deere 830, it's a 3 cylinder diesel and about 35 years old. I can change the crankcase oil and fill it with new oil to be in the middle of the "add" add "full" mark on the dipstick. After running it for a few hours, the level on the dipstick is above the full mark. I have changed the gaskets in the fuel lift pump (it's a cam operated pump by the fuel sediment bowl).
The oil on the dipstick is very watery and it smells like diesel. I turn off the petcock under the fuel tank when the tractor is not in operation. The tractor needs an oil change every 3~5 hours because the level in the crankcase gets so high.
How is the diesel getting into the crank? Could it be bad rings? The tractor runs smoothly otherwise.
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