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Thread: Yanmar 3GM30F
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post #9 of Old 09-26-2007
Warm Weather Sailor
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Join Date: Sep 2006
Location: Toronto
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I would check the impeller. I know you said you recently replaced it and that may be the problem. It may have been an old dry one or got squished a bit going in and now has lost a vane. On the 3GM30 they're pretty easy to get at, unless you have a C&C where it's real hard to get at that side of the engine.

Rick I
Toronto in summer, Bahamas in winter.

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