[C320-list] Strut

[Warren Updike]

I was under the impression (perhaps incorrectly) that there is no bonding
circuit on Catalina boats, there being no need since all thru-hulls are
Marelon plastic. The electrical system is grounded on the engine, and the AC
ground should be bridged to the DC ground. 

I thought galvanic corrosion is only an issue where there is exposed
underwater metal: shaft, prop, etc.  If the strut is well covered with
bottom paint is there still a risk of corrosion?  Anyone know?

The bonding issue, like the lightening protection issue is one on which
there are different opinions. With non-metallic hulls (fiberglass) and
thru-hulls, and barrier coated lead keel it seems there is no need for
bonding.

Warren & Pattie Updike
1994 C320 #62 "Warr De Mar"

-----Original Message-----
From: Irving Grunes [mailto:igrunes at gmail.com] 
Sent: Tuesday, November 26, 2013 12:50 PM
To: C320-List at catalina320.com
Subject: Re: [C320-list] Strut

Can you check with an ohmmeter between thew strut and the engine?
Irv Grunes
2001 #851


On Tue, Nov 26, 2013 at 12:41 PM, JJ Morrison
<sail-ability at sympatico.ca>wrote:

> Mine isn't bonded.JohnM1999#574
>
> > From: bruceheyman at cox.net
> > To: C320-List at Catalina320.com
> > Date: Tue, 26 Nov 2013 09:25:46 -0800
> > Subject: [C320-list] Strut
> >
> > I'm in the shipyard getting a failed cutlass bearing replaced.  
> > Really
> wish
> > they had used a more sustainable bearing as these seem to wear out 
> > way
> too
> > quickly.  My strut is showing signs of galvanic corrosion and I was 
> > wondering if anyone knows if it is bonded or not.  I looked inside 
> > where
> the
> > strut bolt would normally be inside the boat but it is covered up by 
> > the water pump for our Air Conditioner system.  Anyone know if it is
bonded.
> > I'm thinking of adding a zinc to the strut to prevent further corrosion.
> >
> > Thoughts?
> >
> > Thanks,
> >
> > Bruce
> >
> >
> >
> >
> >
> > Bruce Heyman
> >
> >  <mailto:bruceheyman at cox.net> bruceheyman at cox.net
> >
> > (949) 289-8400
> >
> > Somerset #671 Dana Point, CA
> >
> >
> >
>