Re: [OMC-Boats] OMC-Boats Digest, Vol 30, Issue 12

I had similar symptoms with my 1970 Seasport, Buick V-6. At idle or low throttle the engine ran ok and no idiot lights, however under load it would get hot. I have no water in the oil. I follow this forum regularly and through the trials and tribulations of others I have narrowed it down to a stuck/faulty thermostat or a plugged water jacket in the exhaust manifold. So far I have replaced the thermostat and removed both manifolds. The starboard side manifold was clean with little rust or build-up, however the port side was almost completely blocked. I have cleaned both sides and in the process of re-installing, along with clear input hoses for a quick confirmation that the lower units is pulling in water.
I won't know if all this will fix my problem until I get it back together and test. Have I missed anything obvious?

 Ron Mathewson

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From: "omc-boats-request@..." <omc-boats-request@...>
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Sent: Sat, October 10, 2009 12:00:01 PM
Subject: OMC-Boats Digest, Vol 30, Issue 12

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Today's Topics:

   1. water in oil ? (Ellen Matson)
   2. Re: water in oil ? (BC Howk)
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Received on Saturday, 10 October 2009