[Alberg30] Zinc Anode location

Wed Aug 27 17:28:23 PDT 2003

Stephen, there's a labelled photo of a Yanmar engine at www.yanmarhelp.com 
(as I recall, this was NOT the 2GM20F but some other "typical" model) which 
depicted a zinc anode, and this was what I referred to in my message to 
Brian and Elaine. I'd made a mental note to check on my 2GM20F, so now I 
know not to expect to find one. By the way, yanmarhelp.com has good stuff, 
and they certainly were helpful and courteous answering my totally novice 
questions.
Regards,
Calvin

>From: "sousa, stephen (ENG)" <sousa_stephen at emc.com>
>Reply-To: Alberg 30 public list <public-list at alberg30.org>
>To: "'Alberg 30 public list'" <public-list at alberg30.org>
>Subject: RE: [Alberg30] Zinc Anode location
>Date: Wed, 27 Aug 2003 19:52:02 -0400
>
>Calvin,
>
>The Yanmar 2GM series did not have a zinc in the cooling system on previous
>models unless they added this to the design. I would call you distributor
>and ask them if Yanmar installed a zinc in the system. I looked all over my
>motor and couldn't find the zinc, I have installed a shaft zinc onto the
>Alberg.
>
>Stephen
>
>-----Original Message-----
>From: Voyager Toronto [mailto:voyagertoronto at hotmail.com]
>Sent: Wednesday, August 27, 2003 5:12 PM
>To: public-list at alberg30.org
>Subject: Re: [Alberg30] Zinc Anode location
>
>
>Hmm...interesting...please continue to educate me: the engine comes with a
>zinc which the manual advises should be replaced periodically--what's this
>protecting, then? I'd somehow come to associate zincs with the 'siphoning'
>away of minute amounts of electric current and thought, since the shaft was
>a conductor, it might not matter where on the shaft the zinc was located.
>
>
> >From: Brian and Elaine Timmins <timmins at optonline.net>
> >Reply-To: Alberg 30 public list <public-list at alberg30.org>
> >To: Alberg 30 public list <public-list at alberg30.org>
> >Subject: Re: [Alberg30] Zinc Anode location
> >Date: Wed, 27 Aug 2003 12:38:00 -0400
> >
> >If you want to protect it from electrolisis, it must be in the water
> >!!!!! If you put it inside the hull, you'll only protect the area
> >directly under the zinc and then, only from your inspection.
> >----- Original Message -----
> >From: "Voyager Toronto" <voyagertoronto at hotmail.com>
> >To: <public-list at alberg30.org>
> >Sent: Wednesday, August 27, 2003 9:56 AM
> >Subject: [Alberg30] Zinc Anode location
> >
> >
> > > For a zinc anode protecting a prop/shaft to be effective, must it be
> > > in
> >the
> > > water? I have no space on the shaft outside the hull, but a good 2
> >fingers
> > > width inside the hull forward of the stuffing box. The archives
> > > refer to
> >a
> > > zinc one can fit over the prop-retaining nut, but this is less
> > > readily obtained. Inside the hull would also facilitate
> > > installation, inspection
> >and
> > > replacement--no haulout required. Thanks for the replies on the prop
> > > aperture. Calvin, Voyager#30
> > >
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