[Public-List] shaft zinc

[J. Kingsland via Public-List]

Thanks!  Mike Lehman mentioned the end of shaft  solution to me after he saw that my zinc had disappeared yet again when I had my boat hauled to work on the mast wiring a few weeks ago.  I've never heard of it, and then saw this thread.  I may have to give it a go!

Gigi 


On May 16, 2017, 9:08 AM, at 9:08 AM, Jay Davenport <jaysail at yahoo.com> wrote:
>I have used the Canadian Metals end-of-shaft acorn zinc for decades. It
>works very well. To avoid losing it, it is important to use the lock
>washer which is packaged with each new zinc (model B). I only replace
>the zinc after two years, when I am hauling the boat for bottom paint.
>In addition to the lock washer, I put Locktite Blue on the screw ("belt
>and suspenders").
>Jay DavenportRevolution, A30 #526 
>
>    From: J. Kingsland via Public-List <public-list at lists.alberg30.org>
>To: Mike Meinhold <meinhold272 at gmail.com>; Mike Meinhold via
>Public-List <public-list at lists.alberg30.org> 
> Sent: Tuesday, May 16, 2017 8:25 AM
> Subject: Re: [Public-List] shaft zinc
>   
>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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