I spoke with the guy at Inland Marine in Antioch, CA regarding hard restarts on my V210 (Year 2000, 350 hours, Black Scorpion engine). He told me the problem was with the gasket between the exhaust elbow and the exhaust manifold. It is not the exhaust manifold to block connection...there are no water passages there. There are water passages between the exhaust manifold...and the elbow, though. When the gasket goes, water leaks from the water side...into the exhaust manifold. From there...it leaks down on top of the exhaust valves...and into the cylinder if a valve is open. The old style gasket was a metal gasket with fire ring. The new one is thicker, flat, graphite coated, no fire ring. Probably because the old one did not work reliably. Get the SN# off you motor. Go online to the Mercruiser Parts website and look up the parts. You want the gakset between the elbow, and manifold. If you have a riser (unlikely on a Sanger with no freeboard)...there will be two sets of gaskets....one elbow to riser...and one riser to manifold. I will be doing this changeout tomorrow on my V210... We will see if that does it...and how the original gaskets look. (Message edited by kitewake on August 28, 2009)
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