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Tuna Man · 11-21-2007, 07:07 PM

First I'd be very leery of a used manifold...I CAN tell you horror stories of what can happen to the engine when one goes bad. Yes if it's getting that hot there is a blockage, bad thermostat, a bad water pump. I have seen the impellers (fins) totally gone, even a incorrect gasket.Also if a I/O make sure water is in fact being pumped to the engine water pump from the out drive foot.

11-21-2007, 07:07 PM	#3
Tuna Man Senior Member Grand Slam Join Date: Oct 2007 Location: Calera, AL....25 Miles S of Birmingham Posts: 6,583	RE: Exhaust manifold smoke First I'd be very leery of a used manifold...I CAN tell you horror stories of what can happen to the engine when one goes bad. Yes if it's getting that hot there is a blockage, bad thermostat, a bad water pump. I have seen the impellers (fins) totally gone, even a incorrect gasket.Also if a I/O make sure water is in fact being pumped to the engine water pump from the out drive foot.