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Kubota oil in water

A

Anonymous-0

Well-known Member
I have a friend who recently purchased a kubota tractor. It is about 10 years old. He is gitting oil in the water, but not water in oil. Any suggestions on where to start to find the problem. stan
 
I'm having the same problom with my old McCormick (3 cyl diesel). mine is the head gasket (I hope) because I have to leave the radiator cap loose to keep it from building up pressure. Sure hope it's nothing more serious.

Dave
 
Stan, first thing I would check is to see what kind of oil - what is getting low. Next, see if it has any internal oil coolers in the radiator, or external coolers to which the radiator coolant is routed. If it has no oil coolers that could be causing the problem, then compression test it to see if a cylinder or two is lower than others - - might be a head gasket, or worse, a crack. Tom
 
It could be a head gasket or if it has sleeves it could be a corroded sleeve or bad o-ring but why the oil is in the water and not water in the oil I don't know.
 
There's a good chance that he has a leaking head gasket -- between one cylinder and the water jacket.

Combustion byproducts get blown into the coolant by the pressure of firing; they make it LOOK like oil in the water, but it really isn't a direct leak from the lubrication system into the coolant.

If the leak is fairly small, you won't get water into the cylinder and thence into the oil pan. One sign of this sort of leak is a newfound tendency towards overheating -- the hot combustion gases add a lot of heat to the coolant, along with the "oil". You can also check the compression cylinder by cylinder.
 
(quoted from post at 05:54:53 08/17/08) It could be a head gasket or if it has sleeves it could be a corroded sleeve or bad o-ring but why the oil is in the water and not water in the oil I don't know.
Click to expand...

one of the gurus at the case garage (a neighbor) said that the o ring would let water in the oil but not oil in the water. He was comfortable with the headgasket so I bought a set and hope to get to it soon. Mine started out just as David-OR said and ended up with oil in the water (2 years later).

Dave
 
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