[C320-list] ANTICORROSION ZINC

[Jeff Hare]

That's a Galvonic isolator to protect against stray shore power DC leakage.  Its a great feature Catalina adds.   It doesn't replace, in any way, the need for prop shaft Zincs however. It helps prevent your AC system from contributing to the corrosion problem. 

Its worth a quick google read to know what to expect (and what not) from it. 

-Jeff 


-----Original Message-----
From: conneelythomas at aol.com
Sender: c320-list-bounces at lists.catalina320.com
Date: Fri, 1 Oct 2010 11:26:17 
To: <C320-List at Catalina320.com>
Reply-To: C320-List at Catalina320.com
Subject: Re: [C320-list] ANTICORROSION ZINC

All good questions !!  On my boat ( 916 ) I have a electric zinc ?? in my rear port side locker.  Does any one know if I have to do anything with this?  thanks Tom 









-----Original Message-----
From: Robert Seastream <robert.seastream at comcast.net>
To: C320-List <C320-List at Catalina320.com>
Sent: Thu, Sep 30, 2010 9:14 pm
Subject: Re: [C320-list] ANTICORROSION ZINC


If I'm not mistaken, the lack of an 'engine zinc' on the 3GM30F engine  
lock is because it uses an interior cooling system which is filled  
ith 'antifreeze/coolant' (like Prestone).  The coolant is further  
ooled by pumping raw seawater over/through a 'heat exchanger'.  Thus,  
he interior cooling passages of the engine are kept separate from  
orrosive seawater.  Some (older) engines have no such cooling system  
nd simply pump raw seawater through the engine cooling passages.   
hose engines need 'engine zincs'.
Bob Seastream
ntuition # 906
On Sep 30, 2010, at 4:49 PM, Dick Walker wrote:
> No Zink in our application.


 Dick Walker
 WindWalkerII #687
 619.435.8986



 -----Original Message-----
 From: c320-list-bounces at lists.catalina320.com
 [mailto:c320-list-bounces at lists.catalina320.com] On Behalf Of
 sail-ability at sympatico.ca
 Sent: Thursday, September 30, 2010 1:29 PM
 To: Catalina List
 Subject: [C320-list] ANTICORROSION ZINC



 My engine manual talks about a zinc in the engine; evidently it is  
 in a
 plug which is supposed to be identified as ANTI CORROSION ZINC. I've  
 looked
 all over the engine and cannot find it. I have the Yanmar 3GM30F.

 Help please?

 John M

 #574
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