Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 09-05-2012, 08:52   #1
Registered User

Join Date: May 2012
Location: Johnstown Ohio
Boat: 2005 bayliner 285
Posts: 3
Zincs and Portable Generator Honda 2000

I use a Honda 2000 for my shore power. The dock we are at has no power on it. On my boat the reverse polarity light comes on when plugged into the Honda because it sends 60 volts on the Black wire and 60 volt on the white wire to make my 110 voltage. On the boat i have a Zinc Saver II on the shore power coming in and I checked it's statis and it is working correcttly. The problem I am having is that i put new Magnesium zincs on the lower unit and trim tabs last year and they are better than half gone already. They are pitting not shinny so from what I have read that mean it is a galvanic problem. I have not completly checked the bonding system yet but so far it is intact. I am looking for some ideas.
__________________

__________________
bayliner 285 is offline   Reply With Quote
Old 09-05-2012, 10:15   #2
Marine Service Provider

Join Date: Dec 2003
Location: South Carolina
Boat: Philip Rhodes Custom
Posts: 395
Re: Zincs and Portable Generator Honda 2000

Since you don't use shore power, do you have any other shore connections like cable TV, data cable etc.?

If there are no shore power connections the electrolysis is being created locally on your boat. Are you in fresh water? Magnesium is a high voltage zinc for use in fresh water. In salt water you should use normal zinc zincs. Magnesium anodes in salt water are just self destructing "over protecting" the boat.

Make sure all the underwater items are connected to the same place, typically the 12 volt negative. Check that the exposed underwater metal on each item is connected to the negative and if it is not, then bond them together with a coppoer wire. The wire carries nearly zero current so it only needs to be heavy enough to survive in the marine environment.

Once you get all underwater metal connected together any zinc loss is due to different metals in the water and you will have to live with it.

The Hoda 2000 and its strange grounding "should" have nothing to do with your electrolysis problem.
__________________

__________________
Andina Marie is offline   Reply With Quote
Old 09-05-2012, 10:36   #3
Registered User

Join Date: May 2012
Location: Johnstown Ohio
Boat: 2005 bayliner 285
Posts: 3
Re: Zincs and Portable Generator Honda 2000

Andina

Yes i am in fresh water and no there are no other connections for the boat. I will check the system out. Thanks
__________________
bayliner 285 is offline   Reply With Quote
Old 09-05-2012, 10:55   #4
Marine Service Provider
 
fstbttms's Avatar

Cruisers Forum Supporter

Join Date: Oct 2006
Location: Under a boat, in a marina, in the San Francisco Bay
Posts: 3,592
Re: Zincs and Portable Generator Honda 2000

FYI-

"Electrolysis" is the separation of hydrogen and oxygen from water by means of passing an electrical current through it. It has nothing whatsoever to do with metal corrosion on boats. However, the term is frequently and erroneously used as a catch-all to describe any corrosion of underwater metal parts on boats.

"Electrolytic corrosion" is what happens when electrical current (from any source) attacks and corrodes underwater metals.

"Galvanic corrosion" occurs when two dissimilar metals are in contact with each other while immersed in an electrolyte, such as seawater.

This has been your "Please Learn and Use the Correct Terms When Discussing Boats" lecture for the day.
__________________
fstbttms is offline   Reply With Quote
Old 09-05-2012, 14:34   #5
Registered User

Join Date: May 2012
Location: Johnstown Ohio
Boat: 2005 bayliner 285
Posts: 3
Re: Zincs and Portable Generator Honda 2000

Dear fstbttms

I am not having any other metals eating away on my boat but the zincs. According to different zinc web sights i went to the pitting of the zincs is from galvonic corrosion is what they say.
__________________
bayliner 285 is offline   Reply With Quote
Old 15-05-2012, 15:15   #6
Registered User

Join Date: May 2012
Location: Sydney, Australia
Boat: Beneteau 373
Posts: 151
Re: Zincs and Portable Generator Honda 2000

Hi,
I think part of the problem is that the Honda has no real earth. In Australia we us a MEM system - Mains Earth Neutral and I think you guys do as well. That is the earth and neutral are connected. The Honda out of the box does not have this so you need to bind the 2. An earth leakage type circuit breaker will not work if there is no MEM so this could be a way to test.
__________________

__________________
ben373 is offline   Reply With Quote
Reply

Tags
generator, honda, honda eu2000

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 06:31.


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.