Re: 9.5 OMC leaking exhaust question

[johnyrude200]

It ended up being the inner exhaust gasket. There is a spot where the water circulates to keep the port side (exhaust side) cylinders cool, right where the exhaust is at it’s last point before going into the lower housing. There was a 2" gap in the gasket, allowing water to gush in. I think why there was so much water when I turned the flywheel over (with cylinder head removed), is once the motor was shut off, of course, any water at a ‘high point’ above this leak just started backing it’s way down.

I could hear gurgling going on once I shut off the motor too from that area.

Fortunately the lessons I learned back in January during the last batch of these I was working on taught me a great deal about how to pull them apart completely and where to look.

Thanks again Frank! School of hard knocks as you say! Recall the advice you gave me about that 18hp motor with the 1" diameter hole in the exhaust baffle. Still have that baffle as a conversation piece for others!