Cooling System Zinc

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Dec 28, 2010
2
Catalina 30 Gulfport
I have a Yanmar diesel 2GM20 with a fresh water cooling system. I am told Yanmar does not place a zinc in this system. Does anyone have a zinc in their fresh water cooling line? If so, how is it installed?
 

JIM B

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Jun 27, 2006
107
Catalina 30 MKII ROOSEVELT AZ
Torrenson's Answer

This is the reply a friend received yesterday from Torrenson Marine in response to the same question:

Your engine does not have a zinc.


Why does the Yanmar 2GM20F not have a zinc to protect the engine?
There are no conflicting metals within the fresh water circuit of the 2GM20F.
[FONT=arial, sans-serif]Yanmar uses cupronickel heat exchangers in all the fresh-water cooled GM series and they do NOT need zinc's

[/FONT]
 
Jun 11, 2010
13
pearson 31-2 stradford
I have a pearson with the same engine and was looking for a zinc-- could no find one. Thanks for the info
 
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