[C320-list] Strut

[Bruce Heyman]

Waren,
You are right but now zinc and bronze in the water = corrosion.  Mine was well painted with bottom paint and all it did was cover up the damage.  I have a zinc on the shaft and one on the auto prop but since their is no electrical connection to the strut there is no protection for the strut.  I'm adding a zinc.
Best,
Bruce

Bruce Heyman
(949) 289-8400

Warren Updike <wupdike at hotmail.com> wrote:

>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
>> >
>> >
>> >
>>
>
>