766 diesel engine problems.

j carter · Oct 13, 2011

Have had this 766 diesel parked for the last 5 or so years cause coolant was getting into oil.Suspected a sleeve had eaten thru.Didn't need so just parked till now.Put fresh oil in it today, and water in the rad, left rad. cap off.It started almost right away,and started really pushing coolant out the open rad.Let it run for only 2-3 minutes.In that time it pushed all of the engine oil into the cooling system.IS that normal when you have a cavitated sleeve or is there something else going on?Could this be an oil cooler problem?Am going to overhaul this tractor this fall,and am searching for advise. Thanks Jim

Janicholson · Oct 13, 2011

More than likely oil cooler decay/crack.
Remove it. Put a cork in one of the oil line ports on the cooler and put 50 psi of air in the other oil port. If air comes out the coolant ports you will have it in your hands. Clean out the cooling system. Connect the cooler lines back onto themselves where they can return coolant and oil. Give it a try. Jim

Fred eagerton jr · Oct 13, 2011

The very thing happened to my 1466 and it was the oil cooler. I would definely check that first before doing anything drastic, that could possibly fix the problem.
FE

j carter · Oct 14, 2011

Thanks for the replys. That is what I was thinking.Going to get a new oil cooler and check it out again.

Janicholson · Oct 14, 2011

I would not replace the cooler until I determined it was bad!! Jim

766 diesel engine problems.

j carter

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Janicholson

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Fred eagerton jr

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j carter

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Janicholson

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