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Tractor Talk Discussion Forum

Water in the Crankcase

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hdsjr

04-16-2007 17:19:31




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Had a shock yesterday. I went to get the 3000 diesel ready for warm weather use. Replaced the battery and it still wouldn’t turn over. Managed to find a bad wire, fixed it and cranked the tractor. After about a half minute I shut it off to check the fluids. Radiator okay. When I took the dipstick out, it was covered with a water-oil sludge, too much for condensation. I drained the crankcase and more than 5 gallons of oil and water drained out. Radiator still full. I had put about a gallon and a half of antifreeze in the radiator before the first freeze and ran it about 5 minutes to circulate. Our coldest winter temp was about 18 degrees. Today I flushed the crankcase with some cheap oil, replace the filter and cranked it again. It runs like a top. After about 5 minutes I shut it off and checked the oil. Watery, again. Radiator still full.

I think I have a crack in the water jacket low in the cylinder – doesn’t affect the compression, but provides a path for the oil-water mixing. Does anybody have any other thoughts? By the way, it’s not smoking unusually.

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Gene Dotson

04-17-2007 04:32:09




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 Re: Water in the Crankcase in reply to hdsjr, 04-16-2007 17:19:31  
My advise would be to add fresh oil and filter and go work the tractor. Work it hard and long enough to evaporate all the moisture in the system. Cold cast iron with an oil film will hold a lot of moisture inside the crankcase and needs enough heat to remove all the water. This is all part of the wake up process for anything not used for long periods... Gene



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traper

04-16-2007 19:00:53




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 Re: Water in the Crankcase in reply to hdsjr, 04-16-2007 17:19:31  
hdsjr//Water clear or green if clear out side sorce if green water jacket sorce.



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Plowboy1

04-16-2007 18:07:17




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 Re: Water in the Crankcase in reply to hdsjr, 04-16-2007 17:19:31  
Was the tractor parked inside? Could it be rain water finding its way in, like down a muffler pipe or something else?



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Plowboy1

04-16-2007 17:44:26




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 Re: Water in the Crankcase in reply to hdsjr, 04-16-2007 17:19:31  
Hi hdsjr, What brand tractor is it? Some have a wet sleeve design(the piston sleeves are separate units within the block and can be replaced relativly easy- it involves a major motor job, but no boring) Sometimes the o-rings that seal around the top and bottom give out and you will get water in the oil. If you do have wet sleeves, you can drop the oil pan and pressureize the radiator( CAREFUL, only maybe 5-10 lbs.). Look up past the crankshaft and you should be able to see antifreeze dripping if that is in fact the problem. I've had this problem, and though no-one will recomend it, I cured it with 2 bottles of Barsleak. It's been 4 years with no ill effects. Sorry I went on but hope this helps, good luck.

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George D.

04-16-2007 17:26:28




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 Re: Water in the Crankcase in reply to hdsjr, 04-16-2007 17:19:31  
Ugh. Whatever is going on in there, you won't be using that tractor for a while yet. Looks like you get to do a teardown. Is the tractor due for a rebuild? This may be the perfect opportunity...

The one thing that doesn't ring true is the level in the radiator; if you had a crack in the water jacket, wouldn't the radiator level drop?

That water has to be coming from somewhere.

The question is, where?

Wish I had more to offer . . .

-- Geo. D.

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HENRY E NC

04-16-2007 17:52:58




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 Re: Water in the Crankcase in reply to George D., 04-16-2007 17:26:28  
Water will remain in radiator untill the thermostat opens and then ---swoosh--. You are getting water from the engine not the radiator. My.02



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hdsjr

04-16-2007 23:27:54




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 Re: Water in the Crankcase in reply to HENRY E NC, 04-16-2007 17:52:58  
Great ideas and thank you all. The tractor was parked under a hole in the roof (mea culpa). I just never thought of rainwater finding its way in. George, I'm with you on the thermostat. And it will take the thermostat even longer to open if it's not in contact with the warming water, won't it? The water in the crankcase wasn't antifreeze-colored. Just a milky sludge. It's a Ford 3000 diesel, and, no, it wasn't scheduled for a teardown any time soon. Even if it has to be, would be nice if it could be repaired and I can avoid having to replace. Thanks again, everyone!

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Plowboy1

04-17-2007 15:00:53




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 Re: Water in the Crankcase in reply to hdsjr, 04-16-2007 23:27:54  
Hey guys, if you do use a stop leek to repair a problem such as a leeky sleeve, remember to leave the radiator cap loose( you don"t want to pressurize the system and force the stuff into the oil. I"ve done it and have had no problems with leeks or over heating



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