[Public-List] shaft zinc

Tue May 16 06:37:02 PDT 2017

Hi All,

This is the shaft-end zinc I use:

Shaft-end zinc from West Marine - Martyr Series B CMPNZB need to order.  I
believe it's 5/8" thread for my 7/8" shaft.  I have NO room for a standard
shaft zinc.  BTW, divers can change these out fairly easily.

Wes

On Tue, May 16, 2017 at 8:25 AM, J. Kingsland via Public-List <
public-list at lists.alberg30.org> wrote:

> I was thinking about trying the Zinc setup at the end of the shaft on my
> boat as well. The area where I usually put the zinc, forward of the prop,
> is too narrow and the custom trimmed pieces of zinc I've attached in the
> past won't stay on.
>
> Other than apparently it is not working for you Gordon, has anyone else
> had success with it?
>
>
> Gigi Kingsland
> PERFECT intentions #146
>
>
> On May 16, 2017, 5:58 AM, at 5:58 AM, Mike Meinhold via Public-List <
> public-list at lists.alberg30.org> wrote:
> >I would think replacing the shaft nut is your only solution.  Yes,
> >connecting a ground wire to a zinc would help temporarily.  Drilling
> >and tapping underwater sounds tough- not that replacing the shaft nut
> >is easy!
> >
> >Mike
> >
> >Michael J. Meinhold
> >meinhold272 at gmail.com / 301 852 0619
> >
> >> On May 15, 2017, at 10:19 PM, George Dinwiddie via Public-List
> ><public-list at lists.alberg30.org> wrote:
> >>
> >> Gordon,
> >>
> >> From your description, I'm guessing you have an ElectroGuard or
> >Canada Metal zinc
> >(http://alberg30.org/maintenance/MechanicalPropulsion/Zincs/)? Wouldn't
> >it be possible to replace the zinc-nut (which the screw threads into)
> >while in the water?
> >>
> >> - George
> >>
> >>> On 5/15/17 9:37 PM, gordon white via Public-List wrote:
> >>>  Went to replace the zinc on the end of the shaft today and lo and
> >>> behold the old zinc and the socket head screw supposed to hold it
> >were
> >>> gone. It's been difficult to attach the thing, especially under
> >water,
> >>> for several years. Now it appears the threads (1/4 - 20?) are
> >completely
> >>> stripped. I know of no way to fix that without hauling out, which is
> >not
> >>> on the schedule until fall.
> >>>
> >>>
> >>>    There was no apparent corrosion on the prop
> >>>
> >>>
> >>>    My current solution is to drop a zinc on a piece of wire
> >overboard
> >>> and attach the other end to the engine somewhere. Probably will use
> >this
> >>> system only at my dock, as it probably would be a nuisance under
> >way. I
> >>> know of nowhere to attach it more permanently.
> >>>
> >>>
> >>>    My first idea would be to drill out the hole and tap it to a
> >larger
> >>> thread, but do not want to go to 5/16 if I can help it. Next idea is
> >to
> >>> hammer in a piece of brass rod (bronze??) or a bronze bolt and drill
> >and
> >>> tap that back to 1/4 - 20.
> >>>
> >>>
> >>>    Anyone had this problem & how did you solve it?
> >>>
> >>>
> >>> - Gordon White
> >>>
> >>> Brigadoon II # 275
> >>>
> >>
> >> --
> >>
> >----------------------------------------------------------------------
> >>  When I remember bygone days                         George Dinwiddie
> >>  I think how evening follows morn;            gdinwiddie at alberg30.org
> >>  So many I loved were not yet dead,           http://www.Alberg30.org
> >>  So many I love were not yet born.                          also see:
> >>               'The Middle' by Ogden Nash     http://idiacomputing.com
> >>
> >----------------------------------------------------------------------
> >>
> >>
> >>
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