[C320-list] Yanmar Engine Zinc

[swampcreek42]

The 3GM30F does NOT have engine zinc due to the high grade material that the exhaust manifold is made from. I forgot the particulars but I went through this when I first bought our boat. The 3GM30 (No "F", sea water cooled) does have engine zincs.

Bruce Hunter
Nauti Time #719


Sent from my Verizon Wireless 4G LTE smartphone

-------- Original message --------
From: JJ Morrison <sail-ability at sympatico.ca> 
Date:04/24/2014  3:02 PM  (GMT-05:00) 
To: Catalina List <c320-list at catalina320.com> 
Subject: Re: [C320-list] Yanmar Engine Zinc 

As far as I know these engines do not have any zinc anodes. My engine which is a 1998 does not have them, however your's may; Be a good idea to check with a Yanmar rep.CheersJohnM1999#574


> From: RaceAnnouncer at verizon.net
> To: C320-List at Catalina320.com
> Date: Thu, 24 Apr 2014 09:36:46 -0400
> Subject: [C320-list] Yanmar Engine Zinc
> 
> I've been reading up about marine diesel engines.  I hadn't realized that a
> Yanmar 3GM30F engine has internal zincs that should be changed periodically.
> I believe I've located two of them but before I unscrew the brass nut
> holding them in place I thought I'd consult with fellow owners to find out:
> 
> Do I need to drain all the anti-freeze first?
> 
> My boat is a 1997 with a 3GM30F Yanmar engine what size zincs does it take?
> 
> How often do you change them?
> 
> 
> Mike Rauh
> On Your Mark  #408
> 
>