Author Topic: 77 firebird 400, Oil in coolant, but no water in engine oil (manual transmissio)  (Read 515 times)

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Offline jsjsev

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I'm new to this forum, and looking for advice.
Recently my car has gotten oil or pollution in the coolant system, make it all Gray milk color.

What I've noticed before this incident, is the coolant have been squeezing up between the chaincase cover.
As you see from the pictures it's all corroded aluminium.

But the question is where the oil comes from? I cant see any cracks that would make this.
And the engine runs normal, no big pressure on the coolant system and it doesnt go warm.

It has upgraded radiator, with no oil cooling on it.

Anyone with experiance with this issue?