Cruisers Forum
 


Reply
 
Thread Tools Search this Thread Rate Thread Display Modes
Old 20-04-2017, 14:05   #1
Registered User

Join Date: Feb 2017
Posts: 8
Anode for Perkins 4.236 Heat Exchanger

Hello all,

As a bit of an marine engineering novice, I was hoping someone might know where I find the zinc pencil anode and how I can replace it. There is some sort of tap (blocked) within the end brass plate. I'm thinking that this might have something to do with it.

Any assistance is greatly appreciated.

James
James23 is offline   Reply With Quote
Old 20-04-2017, 14:31   #2
Registered User

Join Date: Feb 2016
Location: So Cal
Boat: Lancer 44 Motor Sailer
Posts: 549
Re: Anode for Perkins 4.236 Heat Exchanger

Quote:
Originally Posted by James23 View Post
Hello all,

As a bit of an marine engineering novice, I was hoping someone might know where I find the zinc pencil anode and how I can replace it. There is some sort of tap (blocked) within the end brass plate. I'm thinking that this might have something to do with it.

Any assistance is greatly appreciated.

James
Hi James 23, If you have the later Perkins 4.236 with a tubular heat exchanger on the stb side of the engine. The anode plug is near the aft end 2-3 inches from the end, perpendicular coming into the bundle from a right angle. The plug at the aft end is the short bolt holding the end cover on. You can remove the end cover to clean out the old wasted anode and see how the new anode fits inside. Make sure the new anode isn't to long and hits the opposite side wall.
Diesel Bill is offline   Reply With Quote
Old 20-04-2017, 15:06   #3
registered user
 
HankOnthewater's Avatar

Join Date: Dec 2012
Location: Over wintering in Melbourne. Whose idea was that?
Boat: plastic production yacht, suitable for deep blue water ;)
Posts: 787
Re: Anode for Perkins 4.236 Heat Exchanger

If you have the original heat exchanger I have a manual that shows an 'exploded' view. But the manual is on the boat, can scan it on the weekend if you like.
__________________
Wishing you all sunny skies above, clear water below, gentle winds behind and a safe port ahead,
and when coming this way check https://www.cruiserswiki.org/wiki/Albany,_Australia
HankOnthewater is offline   Reply With Quote
Old 20-04-2017, 15:17   #4
Registered User

Join Date: Feb 2017
Posts: 8
Re: Anode for Perkins 4.236 Heat Exchanger

Thanks Bill, I think I have the earlier version of the 4.236. I think it's about 1980. It's on the stb side of the engine but I can't find the bits you refer to. I'll upload some pictures tomorrow - when it's light - so you can have a see. Thanks, James.
James23 is offline   Reply With Quote
Old 20-04-2017, 15:19   #5
Registered User

Join Date: Feb 2017
Posts: 8
Re: Anode for Perkins 4.236 Heat Exchanger

Thanks Hank, I'd appreciate that.
James23 is offline   Reply With Quote
Old 21-04-2017, 01:59   #6
Registered User

Join Date: Feb 2017
Posts: 8
Re: Anode for Perkins 4.236 Heat Exchanger

Here are a couple of pictures...
James23 is offline   Reply With Quote
Old 21-04-2017, 02:15   #7
Registered User

Join Date: Feb 2017
Posts: 8
Re: Anode for Perkins 4.236 Heat Exchanger

Here (hopefully) are a couple of pictures.
Attached Thumbnails
Click image for larger version

Name:	DSC_0257.jpg
Views:	2056
Size:	366.4 KB
ID:	145977   Click image for larger version

Name:	DSC_0258.jpg
Views:	540
Size:	373.5 KB
ID:	145978  

James23 is offline   Reply With Quote
Old 21-04-2017, 15:01   #8
Registered User

Join Date: Feb 2016
Location: So Cal
Boat: Lancer 44 Motor Sailer
Posts: 549
Re: Anode for Perkins 4.236 Heat Exchanger

Hate to say it but the pics are nothing at all like my coolers. Mine are original 1980 vintage for american version of Perkins. I think there was also a U.K. version. but I've never come across one. I have pics of mine on my cell phone but can't get them to load on the site.
Diesel Bill is offline   Reply With Quote
Old 22-04-2017, 05:44   #9
Marine Service Provider

Join Date: Mar 2014
Location: UK and Central America
Boat: Tucker CA41 Steel 40 foot Ketch
Posts: 401
Re: Anode for Perkins 4.236 Heat Exchanger

I have a UK built 4236M Low line (the engine no will tell you when & where the engine was built) which has the same heat exchanger as yours, mine is made by Serck.

I have had to take the heat exchanger apart a few times and never seen a zinc and I am fairly sure the manual does not show one. I have attached the relevant page from the parts manual in case it helps

Have fun and good luck
Attached Thumbnails
Click image for larger version

Name:	1-Page 29.JPG
Views:	792
Size:	90.0 KB
ID:	146034  
Triumphant is offline   Reply With Quote
Old 22-04-2017, 06:11   #10
Registered User

Join Date: Oct 2009
Posts: 761
Re: Anode for Perkins 4.236 Heat Exchanger

I have a 1985 Perkins 4-108. For the 30 plus years that I've owned it and have cleaned out the heat exchanger numerous time during that period, I've never located any zinc anode. I asked a Perkins mechanic about that and he told me none was needed since the Heat Exchanger was electrically isolated from the engine with the rubber end caps. Don't know if that holds for your engine.
lancelot9898 is offline   Reply With Quote
Old 22-04-2017, 06:39   #11
Registered User
 
tstano's Avatar

Join Date: Mar 2012
Location: NH
Boat: Pearson 530
Posts: 170
Re: Anode for Perkins 4.236 Heat Exchanger

I never found one either, would adding one help or hurt the HX?
__________________
All U Get
tstano is offline   Reply With Quote
Old 22-04-2017, 06:52   #12
Registered User
 
NahanniV's Avatar

Join Date: Mar 2011
Location: Nova Scotia Canada
Boat: Wharram Tiki 46
Posts: 1,320
Re: Anode for Perkins 4.236 Heat Exchanger

I have the same engine, with the same heat exchanger.

I have a pencil zinc in the heat exchanger end cap where you have a hose barb fitting. They are easy to find at any chandlery. It is a brass plug (1/4"NPT?) with the zinc screwed into it. You can buy the zinc with or without the plug.

My engine also has exactly the same zinc in the oil cooler and the transmission cooler. But, I have to cut down the length of the one in the oil cooler so that it will fit.

I am not sure that they are really needed, or do any good, but they are cheap and easy to replace, so I do.
__________________
Cheers,
JM
nahannivatsea.blogspot.ca
NahanniV is offline   Reply With Quote
Old 22-04-2017, 22:48   #13
registered user
 
HankOnthewater's Avatar

Join Date: Dec 2012
Location: Over wintering in Melbourne. Whose idea was that?
Boat: plastic production yacht, suitable for deep blue water ;)
Posts: 787
Re: Anode for Perkins 4.236 Heat Exchanger

Hi James
I see that Triumphant beat me to it (what else does one expect with a name like that!) with his photo of a heat-exchanger diagram. I have two manuals which show slightly different units, one of them identical to Triumphantís one. Cannot see a sacrificial anode on either of them though.
I scanned them in an attached PDF file. The legend refers to the first diagram, I have no legend for the second diagram.
For good measure I attached also two other PDF files that you can use to identify your engine, year and where it was built. Got them from the internet years ago.

Below is a link to another thread, same subject:
http://www.cruisersforum.com/forums/...ger-76982.html

Here is a link to the complete manual (19Mb) of Perkins 4.236, however this manual has no description of a heat-exchanger, looks like more for vehicles, stationary installations.
http://www.endeavourowners.com/dscsn...p%20Manual.pdf


Attached Files
File Type: pdf perkins eng numbers.pdf (90.1 KB, 192 views)
File Type: pdf Engine_Number_Guide_perkins.pdf (84.9 KB, 177 views)
File Type: pdf Perkins heat exchange small pdf.pdf (75.1 KB, 324 views)
__________________
Wishing you all sunny skies above, clear water below, gentle winds behind and a safe port ahead,
and when coming this way check https://www.cruiserswiki.org/wiki/Albany,_Australia
HankOnthewater is offline   Reply With Quote
Old 23-04-2017, 08:13   #14
Marine Service Provider

Join Date: Mar 2014
Location: UK and Central America
Boat: Tucker CA41 Steel 40 foot Ketch
Posts: 401
Re: Anode for Perkins 4.236 Heat Exchanger

Quote:
Originally Posted by HankOnthewater View Post
Hi James

Here is a link to the complete manual (19Mb) of Perkins 4.236, however this manual has no description of a heat-exchanger, looks like more for vehicles, stationary installations.
[/FONT]
You are right this is the road version manual of the engine so no marine bits mentioned. there is a thin Marine supplement that goes with this manual but I do not have a PDF of it.
Triumphant is offline   Reply With Quote
Reply

Tags
heat exchanger, perkins

Thread Tools Search this Thread
Search this Thread:

Advanced Search
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


Similar Threads
Thread Thread Starter Forum Replies Last Post
For Sale: Perkins 4-236 Stainless Heat Exchanger - New sailorsocal Classifieds Archive 12 01-03-2014 08:55
Heat exchanger anode mgmh58 Engines and Propulsion Systems 0 08-02-2013 14:38
Heat Exchanger Anode Deposits pdbms Engines and Propulsion Systems 3 05-01-2011 16:44
How to Clean or Descale a Perkins 4.236 Heat Exchanger edwmama Engines and Propulsion Systems 5 22-12-2010 15:22
Heat Exchanger Anode chuckiebits Engines and Propulsion Systems 3 19-07-2006 13:51

Advertise Here


All times are GMT -7. The time now is 06:44.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2021, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2021, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.