That is a really interesting tip to store away, and (Hopefully) remember!
Bill Coleman C&C 39 animated_favicon1 From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Gary Nylander Sent: Friday, May 24, 2013 11:21 AM To: cnc-list@cnc-list.com Subject: Re: Stus-List Overheating 3GMD - the plot thickens A friend of mine had a similar problem on his motorsailor. He had overheating problems, so took it to the mechanics at the yard in Key Largo for its usual bottom job and the motor work. Cored out the heat exchanger, ran through the whole water system (has a trans cooler in line as well) and dropped it back in the water. Ran great, great water flow at the dock, so we took it out. About a mile out, overheating! No water. Back in, check everything again. Ran it at the dock, great flow, put a load on it, great flow, ran for about half an hour at cruising rpm with load, great flow. Took it back out - lasted a mile.... back in again. It turned out that there was a small air leak in the raw water strainer, as Bob said. Why it would run at the dock and be OK, and not at the same rpm out in the ocean is still a mystery, but my friend (after blowing a good sailing week) decided a new water straining system with better gasket sealing was in order. All is well. Gary ----- Original Message ----- From: Robert Abbott <mailto:robertabb...@eastlink.ca> To: Dennis C. <mailto:capt...@yahoo.com> ; cnc-list@cnc-list.com Sent: Thursday, May 23, 2013 10:56 PM Subject: Stus-List Overheating 3GMD - the plot thickens Don: One more thing to check.....check to see that your 'o-ring seal' on your raw water strainer is tight .....if it isn't, your water cooling system will suck in air and not enough water to cool your engine. If you take the top off the strainer out to clean it, you might not have put it back together tight enough. How do I know this? Daa! Bob Abbott AZURA C&C 32 - 84 Halifax, N.S.
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