Daughter ran the car hot for about 2 miles - 35MPH max, came home and shut off engine. Made no sounds other than steam - no bearing wash I believe.
Radiator is empty and water is clearly in the oil - pulled dipstick. I'm thinking a blown head gasket. I drain the oil (about 3 gallons of oil/water mixture) - looks just like chocolate milk.
I take the intake(upper/lower) off and inspect the gaskets. They look fine.
Take both heads off and both head gaskets look fine. Now, I'm a bit concerned. Crack in the block? It looks fine around where the heads bolt up.
A friend, retired GM mechanic said he's seen a few cases where the front cover (covering timing chain/belt) can leak water into the engine. Other than an obvious crack, how would I determine if this is the source of my water into the engine?
Any other thoughts?
One other thing. The water pump impeller had a couple blades that looked like they were "peeling" away. And where the impeller and front cover meet, it looks like a groove has been ground (in a circle) in the front cover.