I guess I should have said top of housing and thermostat. So I could pour in coolant, rad. is still out to change out head gasket.
Don't know how the coolant is getting in the crankcase, but it is leaking out the pan gasket.
The muffler, I was just thinking the head gasket... the valves... the mix of intake/exhaust... BAMM... major backfire.
Feeling better about cracked block after talking to mac. friend tonight, he said, yeah coolant can pass directly from cooling jacket into oil return at gasket area.
Thoughts?,
D.
