Oil In Coolant

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Jan 16, 2006 | 01:16 AM

77 steve

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Oil In Coolant

I have a 91 f-350 diesel. I'm having a problem with oil in the colloing system. I ruled out the tranny fluid leaking into the radiator, it's motor oil for sure.

Doesn't appear to be a head gasket, as I have no steam or smell, no signs of water in the oil either. Does this sound like an oil cooler problem. ?

Truck starts easy and runs well, but runs warmer than it used to do to the oil in the cooling system.

Thanks in advance for any help.

Jan 16, 2006 | 04:27 AM

tjc transport

i ain't rite

Joined: Mar 2005

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From: Marlboro Mental Hospital.

yup. oil cooler. took a dump

Jan 16, 2006 | 03:10 PM

cookie88

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From: Cabot, Arkansas

I agree.

Hard to imagine those o-rings failing given the size of them, but it happens. May have ruptured internally too.

Jan 18, 2006 | 11:02 AM

77 steve

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Oil In Coolant

Thanks for the help. Any tricks on getting to the mounting bolts on the oil cooler?

Jan 18, 2006 | 04:16 PM

tjc transport

i ain't rite

Joined: Mar 2005

Posts: 65,514

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From: Marlboro Mental Hospital.

lots of alcohol, and a good friend that works on diesels.

really, it ain't that hard to do, just a pita to get to, and real messy.

Jan 19, 2006 | 07:51 AM

pnose

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From: newfoundland canada

Quote:

Originally Posted by 77 steve

Thanks for the help. Any tricks on getting to the mounting bolts on the oil cooler?

Make sure to drain the coolant or you will be in for a green bath.When i did mine i let the engine mount go and jacked the engine on that side,took the cooler off in one piece,some here have done it without jacking and removed it in 2 pieces.Through the wheel well was the easiest way i found to get to the bolts.Mine was all in vain,grabbing at straws,ended up being cavatation,good luck.

Last edited by pnose; Jan 19, 2006 at 07:53 AM.