I have a Yanmar 2GMF and I have yet to find a zinc anywhere on that engine.
Rob Abbott
AZURA
C&C 32 - 84
Halifax, N.S.
On 2017-02-17 7:40 AM, Josh Muckley via CnC-List wrote:
The 2JH2E is freshwater cooled right? Meaning it has a sealed glycol
loop that recirculates AND an open seawater path that cools the glycol
heat exchanger and goes on to cool the exhaust before editing the
boat. To the best of my knowledge these freshwater yanmars do not
have zincs. The need is eliminated because where the saltwater comes
in limited contact with the engine parts (heat exchanger and salt
water pump). Those parts have been made of copper nickle alloys or
siliconized bronze. Neither of which readily corrode in salt water.
The non-freshwater cooled engines have to have zincs because of the
cast iron engine block which readily corrodes in saltwater.
Josh Muckley
S/V Sea Hawk
1989 C&C 37+
Solomons, MD
On Feb 16, 2017 2:14 PM, "Bruce Whitmore via CnC-List"
<cnc-list@cnc-list.com <mailto:cnc-list@cnc-list.com>> wrote:
I don't remember seeing a reference to them in the manuals I read.
Kindest Regards,
Bruce
847.404.5092 <tel:847.404.5092>
Please forgive any typos as this was sent from my iPhone.
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