zinc in Universal 5416? - SailNet Community

   Search Sailnet:

 forums  store  


Quick Menu
Forums           
Articles          
Galleries        
Boat Reviews  
Classifieds     
Search SailNet 
Boat Search (new)

Shop the
SailNet Store
Anchor Locker
Boatbuilding & Repair
Charts
Clothing
Electrical
Electronics
Engine
Hatches and Portlights
Interior And Galley
Maintenance
Marine Electronics
Navigation
Other Items
Plumbing and Pumps
Rigging
Safety
Sailing Hardware
Trailer & Watersports
Clearance Items

Advertise Here






Go Back   SailNet Community > On Board > Gear & Maintenance
 Not a Member? 
  #1  
Old 05-08-2007
Senior Member
 
Join Date: Mar 2006
Location: Maryland
Posts: 156
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 9
wumhenry is on a distinguished road
zinc in Universal 5416?

Should there be a zinc in my Universal 5416? There's a drain plug in the heat exchanger, but it isn't threaded on the inside.
Reply With Quote Share with Facebook
  #2  
Old 05-09-2007
Senior Member
 
Join Date: Dec 2005
Posts: 288
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 9
FrankLanger is on a distinguished road
Yes, the heat exchanger in my universal 5416 has a "pencil zinc" which looks like a nut, but when loosened, has the pencil zinc fitted into it. I change it every 6 months. I understand that not doing this leads to corrosion quite quickly.
Hope that helps.
Frank.
Reply With Quote Share with Facebook
  #3  
Old 05-09-2007
Senior Member
 
Join Date: Mar 2006
Location: Maryland
Posts: 156
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 9
wumhenry is on a distinguished road
Quote:
Originally Posted by FrankLanger
Yes, the heat exchanger in my universal 5416 has a "pencil zinc" which looks like a nut, but when loosened, has the pencil zinc fitted into it. I change it every 6 months. I understand that not doing this leads to corrosion quite quickly.
Hope that helps.
Frank.
Does the zinc insert into one of the two flat end-surfaces of the cylindrical heat exchanger? That's where the drain plug is on mine.
Reply With Quote Share with Facebook
  #4  
Old 05-10-2007
Senior Member
 
Join Date: Dec 2005
Posts: 288
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 9
FrankLanger is on a distinguished road
Unfortunately, I'm not at the boat (it's on the coast, and I'm not ) but as I recall, it's not on either end; rather it's on the cylincrical part of the exchanger--it looks like a nut to undo with a wrench.
Maybe someone else could post a picture....
Frank.
Reply With Quote Share with Facebook
  #5  
Old 05-13-2007
Senior Member
 
Join Date: Dec 2002
Location: Maryland
Posts: 526
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 12
SailinJay is on a distinguished road
I have a Universal M-35B in my boat with a pencil zinc that screws into the heat exchanger. My dealer recommended inspecting the zinc monthly. I think six months is too long because I've gone two or three months and the zinc has worn away significantly, enough to warrant installing a new one.
Reply With Quote Share with Facebook
  #6  
Old 05-15-2007
Joel73's Avatar
1987 Pearson 27
 
Join Date: Apr 2007
Location: NC
Posts: 1,581
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 10
Joel73 has a spectacular aura about Joel73 has a spectacular aura about Joel73 has a spectacular aura about
We just purchased a Pearson 27 with a Universal M12. Diesel engines are completely new to me so i've got a lot to learn. The surveyor did recommend replacing the zinc pencil which we will be doing within the next week or so... i'll try and snap a picture of it when we replace it. Ours is located on the bottom of the heat exchanger to the left hand side as you are looking at the engine from the back. Wow... every six months huh? Is this an expensive item to replace? I haven't even priced them yet.
__________________
Quote:
"Unthinking respect for authority is the greatest enemy of truth." - Albert Einstein

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote Share with Facebook
  #7  
Old 05-15-2007
Junior Member
 
Join Date: Apr 2007
Location: Baltimore
Posts: 27
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
theArchitect is on a distinguished road
Hey Wumhenry, I sent a couple messages to your mailbox.
Reply With Quote Share with Facebook
  #8  
Old 05-15-2007
Senior Member
 
Join Date: Dec 2002
Location: Maryland
Posts: 526
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 12
SailinJay is on a distinguished road
Joel73--

Pencil zincs usually run less than five bucks. As I mentioned earlier, you should check a pencil zinc more than once every six months.
Reply With Quote Share with Facebook
  #9  
Old 05-15-2007
Joel73's Avatar
1987 Pearson 27
 
Join Date: Apr 2007
Location: NC
Posts: 1,581
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 10
Joel73 has a spectacular aura about Joel73 has a spectacular aura about Joel73 has a spectacular aura about
SailinJay- Thanks for the info. Would checking it every 2-3 months be reasonable or should it be done once a month? also, pardon my ignorance but, what exactly does the zinc pencil do? It's just for galvanic corrosion concerns... is that correct?
__________________
Quote:
"Unthinking respect for authority is the greatest enemy of truth." - Albert Einstein

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote Share with Facebook
  #10  
Old 05-15-2007
BarryL's Avatar
Senior Member
 
Join Date: Aug 2003
Location: Long Island, NY
Posts: 1,599
Thanks: 3
Thanked 25 Times in 24 Posts
Rep Power: 12
BarryL is on a distinguished road
Hello,

On the Universal M18 and M25 the zinc is mounted in the heat exchanger. It's on the port side, mounted on the bottom and screwing up into the exchanger.

I check mine yearly and so far I only replace it every other year. My boat is on a mooring so there is very little stray electricity.

Here is a picture

Marine Diesel Direct - Heat Exchanger Group

Barry
__________________
Barry Lenoble
Deep Blue C, 2002 C&C 110
Mt. Sinai, NY

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote Share with Facebook
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

 
Posting Rules
You may post new threads
You may post replies
You may post attachments
You may edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Determining zinc use Mkfcdl Gear & Maintenance 3 08-21-2006 02:33 AM
Shaft Zinc FlySwat Gear & Maintenance 6 06-11-2005 04:15 PM


All times are GMT -4. The time now is 02:34 PM.

Add to My Yahoo!         
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
SEO by vBSEO 3.6.1
(c) Marine.com LLC 2000-2012

The SailNet.com store is owned and operated by a company independent of the SailNet.com forum. You are now leaving the SailNet forum. Click OK to continue or Cancel to return to the SailNet forum.