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yanmar 2 gm 20 questions

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  • Kevin
    Hello again. Does a yanmar 2gm 20 with a heat exchanger use pencil zincs? The engine in the boat is a year 2000 built in Europe. In the yanmar manual I see
    Message 1 of 2 , Jun 4, 2011
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      Hello again.

      Does a yanmar 2gm 20 with a heat exchanger use pencil zincs? The engine in the boat is a year 2000 built in Europe.

      In the yanmar manual I see 3400 rpm continous and 3600 max for the rpm. What is the cruising RPM s for this engine should I use.

      Thanks in advance

      Kevin
    • Dave Evans
      We had a 3GM30 on our Freedom 28. It had no zincs. We d cruise in the upper 2000s and push it in the lower 3000s. Sent from my iPhone
      Message 2 of 2 , Jun 4, 2011
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        We had a 3GM30 on our Freedom 28. It had no zincs. We'd cruise in the upper 2000s and push it in the lower 3000s. 

        Sent from my iPhone

        On Jun 4, 2011, at 1:30 PM, "Kevin" <Khartz86@...> wrote:

         

        Hello again.

        Does a yanmar 2gm 20 with a heat exchanger use pencil zincs? The engine in the boat is a year 2000 built in Europe.

        In the yanmar manual I see 3400 rpm continous and 3600 max for the rpm. What is the cruising RPM s for this engine should I use.

        Thanks in advance

        Kevin

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