Cruisers Forum
 


Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on Cruisers Forums. Advertise Here
 
Thread Tools Search this Thread Rate Thread Display Modes
Old 03-08-2013, 15:26   #1
Registered User
 
Chrisc's Avatar

Join Date: Aug 2006
Location: Whangamata. New Zealand
Boat: H28
Posts: 210
Engine anodes

My H28 has a Perkins Perama 3 cyl 26hp diesel engine. I have searched all over and around the heat exchanger for an anode and can't find it. Can any one tell me where it is located please, assuming this engine does in fact have a cooling system anode.
Thanks, Chris
Chrisc is offline   Reply With Quote
Old 03-08-2013, 15:43   #2
Senior Cruiser
 
boatman61's Avatar

Community Sponsor
Cruisers Forum Supporter

Join Date: Jan 2010
Location: PORTUGAL
Posts: 30,561
Images: 2
pirate Re: Engine anodes

It'll be fitted in the engine block along the Raw Water route... look for a square protrusion
__________________

It was a dark and stormy night and the captain of the ship said.. "Hey Jim, spin us a yarn." and the yarn began like this.. "It was a dark and stormy night.."
boatman61 is offline   Reply With Quote
Old 03-08-2013, 17:44   #3
Registered User
 
Chrisc's Avatar

Join Date: Aug 2006
Location: Whangamata. New Zealand
Boat: H28
Posts: 210
Re: Engine anodes

O.K., Thanks.
Chrisc is offline   Reply With Quote
Old 04-08-2013, 06:13   #4
Senior Cruiser
 
GordMay's Avatar

Cruisers Forum Supporter

Join Date: Mar 2003
Location: Thunder Bay, Ontario - 48-29N x 89-20W
Boat: (Cruiser Living On Dirt)
Posts: 49,082
Images: 241
Re: Engine anodes

Try the
Perkins Perama Shop Manual ➥ http://motorklubben-columbus.weebly....ama_series.pdf
__________________
Gord May
"If you didn't have the time or money to do it right in the first place, when will you get the time/$ to fix it?"



GordMay is offline   Reply With Quote
Old 05-08-2013, 16:42   #5
Registered User
 
Chrisc's Avatar

Join Date: Aug 2006
Location: Whangamata. New Zealand
Boat: H28
Posts: 210
Re: Engine anodes

Well, I've had another fruitless search around the engine and also the engine's workshop manual. I can't find any anodes and the manual doesn't mention them. There are similar questions on other sites as to the absence of anodes on Perkins Perama engines, so I assume that this engine does not have any??
I am not particularly pleased about that.
I am thinking about drilling and tapping into the water jacket and installing one of those little pencil thick anodes that are set into a threaded brass plug. Alternatively, could I not just drop a small anode into the water jacket via the water filler cap? Or, do I assume that since the engine does not have an anode factory fitted, it doesn't need one?
Chrisc is offline   Reply With Quote
Old 06-08-2013, 01:42   #6
Registered User

Join Date: Apr 2007
Location: Australia
Boat: Island Packet 40
Posts: 6,415
Images: 7
Re: Engine anodes

If your engine has a heat exchanger it may not have any anodes and since they are not mentioned in the service manual this is most probably the case. You cannot just drop them in because the anode has to have a good electrical connection to the metal you are trying to protect.

Modern engines tend to have alloy parts exposed to the cooling fluid and if you run them on just water instead of the recommended cooling fluid you could have serious electrolytic corrosion problems in that the alloy parts will act as an anode to protect any other exposed metal parts particularly cast iron or steel engine blocks.

Many of the marine conversions now prevalent have the heat exchanger incorporated into the water cooled exhaust manifold and these are cast from alloy and are particularly prone to corrosion if you don't run the correct cooling fluid in the engine side of the circuit.

It is probably more important to use the correct cooling fluid than to install an anode although I tend to like anodes and have lots of them on my engine.
RaymondR is offline   Reply With Quote
Old 06-08-2013, 13:03   #7
Registered User
 
Chrisc's Avatar

Join Date: Aug 2006
Location: Whangamata. New Zealand
Boat: H28
Posts: 210
Re: Engine anodes

Thanks for your reply.
Prior to my taking over the vessel, the paperwork that came with her indicates that the engine had been professionally maintained. I note that the fresh water in the heat exchanger is a bright green which would indicate that some sort of additive is in it. I think that I will drain the system, flush, and refill with the manufacturers recommended fluid, and also tap into the water jacket somewhere and install a threaded anode.
Nothing quite beats a belt and braces approach.
Chrisc is offline   Reply With Quote
Reply

Tags
engine

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


Advertise Here


All times are GMT -7. The time now is 23:48.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2024, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.