water in the oil

Markrunyan1 · Aug 9, 2019

Does water in the oil of an AN John Deere necessarily mean that I need to replace the head gasket? I have no idea when the oil was last changed or the machine was run.

SVcummins · Aug 9, 2019

If it hasn?t ran in a long time it might just be
condensation

shinnery · Aug 10, 2019

Does there appear to be antifreeze in the water? No antifreeze it may be condensation.

Zeke Boniface · Aug 10, 2019

Is an AN an A with a narrow front?

I've run some two cylinder Deeres. They had a coupling in the oil pump drive that sheared if the pump wouldn't turn. Mostly the pump wouldn't turn because it was full of ice. It sat way down in the crankcase.I've replaced one, maybe two of those couplings, but never a head gasket.

Once you get your tractor running, and then it has set a day or two, periodically loosen the oil drain plug until something just seeps out of it. Let it seep until you get good oil.If you get antifreeze, now you do have a real problem.

Zeke B.

Markrunyan1 · Aug 10, 2019

(quoted from post at 00:04:20 08/10/19) Is an AN an A with a narrow front?

I've run some two cylinder Deeres. They had a coupling in the oil pump drive that sheared if the pump wouldn't turn. Mostly the pump wouldn't turn because it was full of ice. It sat way down in the crankcase.I've replaced one, maybe two of those couplings, but never a head gasket.

Once you get your tractor running, and then it has set a day or two, periodically loosen the oil drain plug until something just seeps out of it. Let it seep until you get good oil.If you get antifreeze, now you do have a real problem.

Zeke B.

The AN is a narrow A, mine is a three wheeler. Would the oil pump drive coupling allow water into the oil if it is sheared?

Zeke Boniface · Aug 10, 2019

The broken coupling is the result of water entering the crankcase, not the cause of it.

I agree with the others, the cause is usually condensation.I have to wonder whether Deere anticipated a buildup of water in the oil, thus, the sacrificial coupling.

Zeke B.

Leroy · Aug 10, 2019

I know on the unstyled A there were tubes in the head I think for the valves that rusted out and needed replaced and when doing that rusting out would get water in oil. Never had antifreeze in that tractor, fill with water when you started it and drained when you shut it off. And an AN is single front wheel, the A is dual front wheels, the AW is the row crop with wide front axle and the AR is the wheatland standard tread version.

Mark-Ia · Aug 11, 2019

Several places for the water to get into the crankcase. Condensation, around the clutch fork shaft and around the clutch pulley, down the exhaust and past the rings.

water in the oil

Markrunyan1

New User

SVcummins

Well-known Member

shinnery

Well-known Member

Zeke Boniface

Member

Markrunyan1

New User

Zeke Boniface

Member

Leroy

Well-known Member

Mark-Ia

Well-known Member

Similar threads