engine oil in coolant

[pinhead159]

Hello everyone,

I have oil in the coolant of my GM 350 what does this indicate?
This engine is in a 1980 Chev C30 steep-van and is a GM replacement crate motor.
The water pump failed and it did get hot before the oil showed up in the radiator.
I am thinking a blown head gasket, cracked head or block.

Jack

[vgames33]

Those are pretty much the only options. At least its just oil in the coolant, not the other way around. Most likely the gasket.

[danielsatur]

You might want to try some http://www.steelseal.com ,and let us know if it works.

[MagicRat]

Are you sure its not auto transmission fluid in the radiator?

A leaking transmission cooler is a common route for oil to get in coolant.

Otherwise you may have an internal crack in the block, where an oil gallery is allowing pressurized oil into the coolant. I would not suspect a head gasket simply because there is no pressurized oil passing through it, and I cannot see drainback oil getting into a pressurized cooling system.

[Blt2Lst]

Originally Posted by danielsatur

You might want to try some http://www.steelseal.com ,and let us know if it works.

Mechanic in a can to the rescue..

[danielsatur]

Some shops charge for a new head gasket repair $1200 to fix, use this $100 product for repair.

http://www.youtube.com/watch?v=3suQy44G_B0