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Show Parts for Model:

John Deere 2030 Oil in the Antifreeze.

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John Stewart

01-10-2002 10:30:52

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This is a 2030 Diesel. I have crankcase oil seeping into the coolant. It rises to the top in the radiator. The machine shop says the head is not cracked. I have been told if the o rings at bottom of cylinder liner is shot coolant will go to oil but not oil to coolant. Before I just replace the head gasket are there any other areas on the block to look at? Thanks.

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John Henry

01-11-2002 06:47:56

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 Re: John Deere 2030 Oil in the Antifreeze. in reply to John Stewart, 01-10-2002 10:30:52  
I dont ever remember seeing an oil cooler on a 2030. However or whatever. Chances are as others have already said your liners are most likely the cause. Make sure to put the JD coolant additive in your coolant along with the antifreeze. That and changing the coolant every few years will eliminate the pitting of your liners.

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01-10-2002 14:09:51

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 Re: John Deere 2030 Oil in the Antifreeze. in reply to John Stewart, 01-10-2002 10:30:52 eliminate the oil cooler as a cause, you can jump across the cooler lines with a piece of heater hose...leave the cooler tubes open and look for oil leaking out with the engine running....My guess is that it isn't the cooler but that the cylinder liners are porous and allowing the can go both ways...oil into water or water into oil or both depending on exactly where at the base of the liner it is porous...when you have the head off, look for grayish looking lines on the cam side of the liners...they are usually more noticeable when the water is transfering to the oil but they may be there...In older construction equipment with that and similar engines it is a routine problem and can be attributable to cheap anti freeze...

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john stewart

01-11-2002 06:30:04

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 Re: Re: John Deere 2030 Oil in the Antifreeze. in reply to Jonathan, 01-10-2002 14:09:51  
My 2030 does not have an oil cooler. The filter basically screws right to the block. Looks like I should go ahead and pull the liners and check the square gasket and o rings. I wonder if I should have the top of the block checked for warping???

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01-15-2002 19:04:04

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 Re: Re: Re: John Deere 2030 Oil in the Antifreeze. in reply to john stewart, 01-11-2002 06:30:04  
I have had this problem brought to me for repair it is allways pits or holes through the sleeves ,it is caused by cavitation in the water jacket,as stated by others use J.D.additive in the coolant this helps some,but is not the cure!I have repaired the same tractor two times and her sister off the same farm who is a couple of years older with about the same amount of use is still running strong! Hope this helps you. John

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01-10-2002 11:30:10

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 Re: John Deere 2030 Oil in the Antifreeze. in reply to John Stewart, 01-10-2002 10:30:52  
John, The 2030 diesel has a 219 engine that uses an engine oil cooler. This cooler is located between the oil filter and the block and will have two coolant lines hooked to it. When the oil cooler core fails the engine oil will be forced into the coolant because the engine oil pressure is greater than the cooling system pressure. There is no repair for it other than replacing it. The only other place the two fluid can become mixed is the head gasket but the most common cause for this is the oil cooler. To get the oil out of your radiator just keep over filling it as the coolant is heavier than the oil and the oil will always come to the top. Overfilling will force the oil out of the top of radiator. You will get the oil out of the cooling system better that way than you will draining as the oil will cling to the inside of radiator and water jacket when coolant is drained. It will eventually be flushed out as you continue to check it and flush it by overfilling it every once in awhile. Good Luck Dave W.

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01-13-2002 19:05:00

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 Re: Re: John Deere 2030 Oil in the Antifreeze. in reply to WTW, 01-10-2002 11:30:10  
John, No 2030 that i've seen has a oil cooler on it. The larger dubuque 6 cylnder engines do however have them. The cylinder o-rings are the biggest suspect.

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01-11-2002 05:01:56

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 Re: Re: John Deere 2030 Oil in the Antifreeze. in reply to WTW, 01-10-2002 11:30:10  
When did John Deere start putting oil coolers on the engine? I have a 2030 that does not have one.
It is also a diesel. I also have the 2030 parts book and it does not show an engine oil cooler. I have seen the engine oil cooler on a 2630, so I know what it looks like.

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01-14-2002 17:19:35

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 Re: Re: Re: John Deere 2030 Oil in the Antifreeze. in reply to Robert, 01-11-2002 05:01:56  
I did some checking at the dealership and came up with this,later model 2030s could have a oil cooler on them. It would be under the filter like those found on combine motors. The only thing with all that is it more or less eliminates the o-rings in the block and brings it back to the head gasket or cracked head. Oil won't go up the side of the cylinder because it is a non pressurised crankcase.

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