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David&Joan David&Joan is offline
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First recorded activity by BoatBanter: Jul 2006
Posts: 21
Default Zinc replacement on Yanmar 3HM/3GM series

Don:

There are no zincs on a Yanmar 3GM engine, at least not on the few I have
owned. The raw water heat exchanger has cupro-nickel tubes and Yanmar
obvously believes that they won't corrode enough to warrant zincs.

David