Return to the home page...

Go Back   Moyer Marine Atomic 4 Community - Home of the Afourians > Discussion Topics > Cooling System

Reply
 
Thread Tools Display Modes
  #1   IP: 73.212.47.219
Old 02-10-2019, 04:34 PM
sdemore sdemore is offline
Senior Member
 
Join Date: Nov 2016
Location: Pasadena, MD
Posts: 228
Thanks: 84
Thanked 42 Times in 32 Posts
Heat Exchanger Zinc

I bought a used heat exchanger last year from a working boat (same model sold on the Moyer site). I pulled the zinc out to replace it today and it is about half the length and thickness of new. I picked up a new on at West Marine and tried to install it today. It went in about 3/4 of the way and hit something inside the exchanger. So 2 questions:

1) should a standard 2" long zinc fit, or is it supposed to be trimmed?

2) Presuming it should fit, if I remove the bolt on top and/or bottom cover, can I pull out the tubes and see if a chunk of old zinc is in there?
__________________
Steve Demore
S/V Doin' It Right
Pasadena, MD
Reply With Quote
  #2   IP: 137.103.82.194
Old 02-10-2019, 04:46 PM
joe_db's Avatar
joe_db joe_db is offline
 
Join Date: May 2009
Posts: 3,227
Thanks: 45
Thanked 343 Times in 256 Posts
Quote:
Originally Posted by sdemore View Post
I bought a used heat exchanger last year from a working boat (same model sold on the Moyer site). I pulled the zinc out to replace it today and it is about half the length and thickness of new. I picked up a new on at West Marine and tried to install it today. It went in about 3/4 of the way and hit something inside the exchanger. So 2 questions:

1) should a standard 2" long zinc fit, or is it supposed to be trimmed?

2) Presuming it should fit, if I remove the bolt on top and/or bottom cover, can I pull out the tubes and see if a chunk of old zinc is in there?
1 - don't know, you can trim them
2 - I would look in there and see
Reply With Quote
  #3   IP: 32.211.28.40
Old 02-11-2019, 10:44 PM
Al Schober's Avatar
Al Schober Al Schober is offline
Afourian MVP
 
Join Date: Jul 2009
Location: Uncasville, CT
Posts: 1,393
Thanks: 8
Thanked 162 Times in 141 Posts
There are two types of replacement zincs. First comes with the brass threaded plug - not sure how the zinc in secured into the brass. Second type the brass plug is threaded and you just replace the zinc, which has a male thread to match the female thread in the plug. If things fit, the second type is less expensive to replace.
As for the length of the zinc, I recall having to trim the zinc to fit.
Reply With Quote
  #4   IP: 108.172.150.27
Old 02-12-2019, 12:22 PM
Marty Levenson Marty Levenson is online now
Senior Member
 
Join Date: Nov 2004
Location: Bowen Island, BC
Posts: 654
Thanks: 66
Thanked 34 Times in 30 Posts
pop the lid

If it is anything like the one Indigo sells it is easy to open. I would certainly open it up and have a look.....especially as you don't know its history. Could even be it is not screwing all the way in due to zinc goo building up in the threads (as it did on mine).
__________________
Marty
1967 Tartan 27
Bowen Island, BC

Reply With Quote
  #5   IP: 73.212.47.219
Old 02-12-2019, 07:53 PM
sdemore sdemore is offline
Senior Member
 
Join Date: Nov 2016
Location: Pasadena, MD
Posts: 228
Thanks: 84
Thanked 42 Times in 32 Posts
Thanks for the advice guys! I'll pop it open and see what I can see! It's been cold (frozen water cold), so I haven't been working on the boat as much as I need, so I'll open the heat exchanger at the next opportunity.
__________________
Steve Demore
S/V Doin' It Right
Pasadena, MD
Reply With Quote
  #6   IP: 74.107.30.34
Old 02-13-2019, 11:32 PM
sastanley's Avatar
sastanley sastanley is offline
Afourian MVP
 
Join Date: Sep 2008
Location: Solomons, MD
Posts: 6,590
Thanks: 554
Thanked 323 Times in 254 Posts
If the threads match up, typically 1/8" NPT, there is no problem cutting some length off the zinc itself. I had to do that to fit in my HX. I probably used a hacksaw or dremel tool. Which reminds me, if I can't remember what I used to cut it, I probably need to replace it!
__________________
-Shawn
"Twice Around" - '77 Catalina 30, #511 with original A-4 & MMI manifold.
She is always happy with a clean bottom!

http://www.moyermarine.com/forums/signaturepics/sigpic3231_6.gif

Last edited by sastanley; 02-13-2019 at 11:36 PM.
Reply With Quote
  #7   IP: 192.186.122.174
Old 02-14-2019, 09:47 AM
GregH's Avatar
GregH GregH is offline
Senior Member
 
Join Date: Jun 2015
Location: Kingston, ON
Posts: 308
Thanks: 159
Thanked 24 Times in 22 Posts
Maybe someone from Moyer can pipe in with what the length of the pencil zinc is required on their unit? I know you can get them in various lengths - why potentially pay more for a longer one that you have to cut?

- Edit - sorry.. I got off my butt and did the looking myself LOL... - https://moyermarine.com/product/sacr...r-cfwc_04_268/

if it's a similar unit to Moyers, maybe these dimensions will help?

https://moyermarine.com/product/sacr...r-cfwc_04_268/
__________________
Greg
1975 Alberg 30
Reply With Quote
  #8   IP: 71.208.55.235
Old 02-14-2019, 11:33 AM
romantic comedy's Avatar
romantic comedy romantic comedy is offline
Afourian MVP
 
Join Date: May 2007
Location: florida
Posts: 1,814
Thanks: 4
Thanked 70 Times in 56 Posts
Quote:
Originally Posted by GregH View Post
Maybe someone from Moyer can pipe in with what the length of the pencil zinc is required on their unit? I know you can get them in various lengths - why potentially pay more for a longer one that you have to cut?

- Edit - sorry.. I got off my butt and did the looking myself LOL... - https://moyermarine.com/product/sacr...r-cfwc_04_268/

if it's a similar unit to Moyers, maybe these dimensions will help?

https://moyermarine.com/product/sacr...r-cfwc_04_268/
You can buy the zinc without having to buy the brass part. I get my zincs and screw them right into the brass, for about 2 dollars.
even West has them.
Reply With Quote
The Following User Says Thank You to romantic comedy For This Useful Post:
GregH (02-14-2019)
  #9   IP: 73.212.47.219
Old 02-14-2019, 06:56 PM
sdemore sdemore is offline
Senior Member
 
Join Date: Nov 2016
Location: Pasadena, MD
Posts: 228
Thanks: 84
Thanked 42 Times in 32 Posts
The old one doesn't unscrew, maybe made that way, maybe corrosion. The new one does unscrew and I found that by accident.

The one on the Moyer page says overall length 2", length of zinc 1.3". The one I bought at West has 2" of zinc, which they told me was standard. On the bright side, it was only $4.79

Another lesson in the books...
__________________
Steve Demore
S/V Doin' It Right
Pasadena, MD
Reply With Quote
Reply

Thread Tools
Display Modes

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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Heat Exchanger Zinc? southcoasting Cooling System 5 05-22-2013 01:59 PM
Plate-type heat exchanger Kelly Cooling System 22 02-23-2013 11:15 PM
Zinc in heat exchanger rigspelt Cooling System 1 10-15-2009 06:40 AM
Heat exchanger zinc jhwelch Cooling System 3 08-28-2008 06:04 AM
Heat Exchanger Zincs hcpookie Cooling System 4 11-30-2005 04:26 PM


All times are GMT -4. The time now is 03:33 PM.


Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2019, vBulletin Solutions, Inc.


Universal® is a registered trademark of Westerbeke Corporation

Copyright © 2004-2019 Moyer Marine Inc.

All Rights Reserved