MikesTractor
Silver Member
Oil is pressurized to about 60psi, while water is pressurized to about 15psi.
A head gasket or cracked head or cracked block can connect the oil with
the water. I have seen oily coolant, and cloudy oil. Both are possible.
Hopefully this problem is only a bad head gasket. If one can not be bought
new, they can be custom cut out of copper sheet.
Amen! This is real easy. Like dfkrug said. If your radiator pressure is 12 to 15 psi, and your oil pressure is 50 to 60 psi, and there is a blown gasket/crack/leak between the two, the highest pressure will win. That means that there will be oil in the radiator.
If there is a blown gasket/crack/leak between the water and a "return oil passage", then the water will be in the oil pan.
At this point in the game, I would remove the head, check the gasket, and have the head pressure tested. This is the minimum I would before scrapping the project.
Mike