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Roger That :beer:

Wish mine was too. I had the heads magna fluxed and no cracks found. Had the entire motor scoped. No obvious cracks found. They looked behind the sleeves. We are going to pressure test after its all back together to verify it is the block.

More bad news today - Im going back to bed! Maybe tomorrow there will be a brand new MRAP in my driveway.

I don't think the guy from Ecology likes money. I told him to just have guys show up with tools. Cash and carry. That's what I'd do. One of the trucks had a niiiiice motor. Hate to see it melted down. Guys name is Rick 760-275-0576. Give it a shot. BTW there are more 5 tons then deuces ;-)

Do you have his email address?

Well that sucks :(

Any idea why my deuce has a pressure relief valve on the oil cooler? Looked at TMs and all I see here is either a plug or drain valve.

It is the inside of the oil cooler. We think this is where the problem is. Had the actual cooler pressure tested today and its good. One of the quarter size, red O rings looks a little like it could be letting coolant get by and into the oil.

Truck does not overheat. Quit the opposite. It runs cool. Takes almost 20 min for the temp to hit 190 and never goes higher then that.

Negative - all original. Keep 'em coming, I'll try anything.

Actually my problem is the opposite. There is NO oil in the coolant. Just coolant in the oil. I'm thinking the mixture is taking place once the oil pressure goes down and the coolant pressure stays. Is that possible ?

Machine shop did all that to the heads when they magna fluxed. They felt heads are good and don't even need to be machined down. I saw him check the surface with a big steel straight edge. He had motor heads all over the place so I feel confident in his evaluation. I will check block surface...

Likewise - Lets do it again soon. :beer:

The entire motor is still apart and we can't find anything conclusive. When we put it together the first time it was clean. New oil, New AF, new gaskets , everything. Truck was great for a few weeks. But once heated up to freeway heat problem was back. AF in the oil and a nice milk shack at the...

So what was the final out come regarding coolant in your oil? I have this problem with milk shake and all. I replaced the head gaskets and problem persisted. I tore motor back down and had the heads magna fluxed, no cracks. Based on this thread took the cooler apart. It looks like this inside...