JD MT coolant in the oil

Nick167

Member
I have a MT that started getting coolant in the oil it was never hot and had antifreeze in it so I m pretty sure nothing is cracked I m thinking maybe a head gasket or are these a wet sleeve engine? The tractor sat for years before I bought it I got it running but it didn t start doing this til a couple months later
 
I guess my experience was different concerning cracked heads and blocks, even though the temperature sensor is located where they always indicate hot. As a kid we farmed with two MT's. They gots lots & lots of hours, summer & winter for many years. I don't remember a single incident of a cracked head nor block. But I do remember plowing day after day, pulling her really hard, radiator boiling, stopping every round at the irrigation ditch and topping the radiator off with water.
 
Drain the ant-freeze, put in straight water and some stop leak, after it seals up put the anti-freeze back in. We had an M that leaked a
little, worked for me!
 
Nick,
I had a 40 tractor, which uses the same engine, start losing coolant all of a sudden. Pulled down the pan and found coolant seeping down number one cylinder. I pulled the head off and found one of the coolant ports where the head gasket has a rolled edge blown out. I replaced the head gasket and all is fine. The only thing I can think of is the head bolts became loose or the gasket compressed over time and allowed compression to push out that spot. Good Luck!
John
 
As Mike stated bad for heads and blocks.We sale more heads and radiators for the none water pump models that all the others put together
 
Thanks everyone hopefully this summer Il have time I can pull the head off and replace the gasket and see if I see any cracks.
 

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