Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 05-09-2013, 20:55   #1
Registered User

Join Date: Feb 2012
Posts: 19
zincs

Defender shows a hanging grouper zinc for protection from electrolysis. you clip one end to a ground the other end with the zinc grouper goes into the water. anybody know if the prop shaft is where the ground need to attach? negative battery post? Engine block?
This would be an easy fix for most boats that stay at anchor most if the time.
anybody had experience with this kind of zinc?
__________________
White island is offline   Reply With Quote
Old 05-09-2013, 21:12   #2
CF Adviser
 
Bash's Avatar

Cruisers Forum Supporter

Join Date: Dec 2008
Location: sausalito
Boat: 14 meter sloop
Posts: 7,260
Re: zincs

Quote:
Originally Posted by White island View Post
Defender shows a hanging grouper zinc for protection from electrolysis. you clip one end to a ground the other end with the zinc grouper goes into the water. anybody know if the prop shaft is where the ground need to attach? negative battery post? Engine block?
This would be an easy fix for most boats that stay at anchor most if the time.
anybody had experience with this kind of zinc?
Yes, I've used one. You don't have to connect it to the prop shaft. I connect mine to the chainplates, since they are bonded. Anyplace that shares a ground with the engine should work.

Use this as a supplement to prop zincs, not as a replacement for them.
__________________
cruising is entirely about showing up--in boat shoes.
Bash is offline   Reply With Quote
Old 05-09-2013, 23:37   #3
Registered User

Join Date: Jan 2012
Location: Novato, California
Boat: Rafiki 37
Posts: 262
Re: zincs

Just to be on the safe side take a digital voltmeter and put it on the resistance scale. Take a measurement between ground and your prop shaft just to verify if in fact it is bonded and and how well.

On my boat there is no prop zinc. There is a very large zinc attached to the side of the boat, around 15"x6"x1", with bolts that go through the hull. A separate wire runs from one of the bolts to a rubbing contact on the propeller shaft, something I always check. :-)
__________________
kentobin is offline   Reply With Quote
Reply

Tags
paracelle

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 16:54.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.