Water in oil!

[MUSTANGDAVID1998]

A buddy of mine is looking at getting a 1994 F350 4x4 CC LB, the guy selling it says it has water in the oil. The story he told us was his dad had borrowed it and it over heated on him, so he replaced the thermostat and now it has water in the oil. I was just wondering if you guys had any insight on what might be the cause of this? Head gasket? Water pump? Pretty new to diesels myself and im pretty mechanically inclined so I could fix it, but I just wanted to ask first.

Thanks David

[mbahr22250]

I would say head gasket. Not sure if the older 7.3's have a oil cooler (I'm sure someone here knows), but if it does it might be that too.

[66Bronco]

Check the oil cooler. It's on the lower driver side. Also, check the injector cups, as these have a tendency to warp if they overheat. Other than that, the only other thing that I can think of would be cracks in the block. But if the engine runs, that's not it. Also, if there is not any white smoke, I doubt it's head gaskets.

[MUSTANGDAVID1998]

Alright ill be sure to check those, i havent seen the truck myself but im goin to look at it tomorrow so ill look then.