I'm still lost about how the coolant could have ended up in the airbox via puking from the overflow... unless your coolant vent hose was stuck into the airbox or something.
Quote:
Originally Posted by Arne2
Still not sure how the airbox got filled, but after sucking quite a bit of coolant out of #3, I started it and ran it for 15-20 seconds. Pulled the plugs, #3 was full of coolant again. Head coming off next week...
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...and after reading this, still think it's most likely from the combustion chambers, being pumped/splashed back upstream. It's condition/color is irrelevant, if the gasket is blown that badly it's been steam-cleaned for quite some time.