[C320-list] Heat Exchanger Zinc?

[surprise thompson87.com]

The 3GM30F does not have a zinc. The 3GM30 (not the engine in our boats) probably does have one because it is raw water cooled instead of having a heat exchanger. You have the former and so there is no zinc. 



> On Jun 11, 2023, at 2:50 PM, Scott Westwood via C320-list <c320-list at lists.catalina320.com> wrote:
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> If memory serves some versions have a heat Exchanger zinc and some don't?  I have '98 Yanmar 3GM30.  I have never replaced mine so I hope I am not missing a Maint step here?  How to tell?
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> Thanks,
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> Scott Westwood scottwestwood at bellsouth.net C (919)- 819-9794