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ford 8n oil in water/water in oil

A

Andrew C.

New User
I have a ford 8n I think 42model, was running fine but one day while mowing tractor started over heating, and water and a brown oily sludge came poring out of the radiator cap. Further examinations found same sludge/oil in radiator. I drained the oil and it also had water in it. there was more oil in the water that water in the oil. I changed the head gasket but same problem. Is the block trashed or could the problem be caused by somthing else.
 
8n's were started in 47 for the model year 48... though that's imaterial to yuor problem.. same basic block design as far as the oil and water ports are concerned.

did you flush the radiator and block good to get rid of the emulsion?

are you still loosing water?

did you retorque the head after warming it up?

I'd pull the head again and look for signs to see if it blew out again.. if so.. look to see if the head is flat using a straight edge.

if it is, time to pull the pan and do a pressure test ont he cooling system to see where you start getting water leaks from.

soundguy
 
yes flused radiator and block. The problem was not as bad as when it first accured but the tractor had only run for a few minuets befor I noticed the problem again. I drained radiator and oil again. did not re-torque head. I supose that could be the problem but dont think so. what are the odds of the block being cracked.
 
Andy.......listen to SouNder, WARPED flatheads LEAK. Use FelPro fiber headgasket helps. MANDATORY to re-torque after 15-30 minute warm-up. Just pull the headbolts (70ft/lbs) or studnuts *55ft/lbs) to specs while still WARM but NOT HOT. Understand???

The block occasionally cracks on the left OUTSIDE by the drain port but NEVER INSIDE. .....Dell
 
May not be your problem but I've seen 2 of these tractors do the same thing. The blocks were cracked behind the sleeves. Was fixed by a good machine shop.
 
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