Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 20-09-2015, 15:06   #1
Registered User

Join Date: Sep 2015
Location: Sweden
Boat: Nauticat 36
Posts: 12
Perkins 4.236 oil cooler problems

A nice summer up to one terrible day, I will post the full story when I feel mentally strong.
The end of it was an Engine that consumed motor oil faster than diesel and let it all come out in the water together with the exhausts.

My current theory is the oil cooler as that seems to be the one place where sea water and oil meet. Removing it supported the theory as there was that terrible White stuff you get by mixing oil and water in the hose where there only should be water.
If anybody has any other possible causes please tell me!!!

It is that Serck type of Oil Cooler. I have removed it and cleaned it and there is nothing obviously broken.
So my first question is how to best test if it is broken?
(My second would be where to get spares if it is broken. Not even Mr. Google has been of any help there )

Appreciate any comments!
Attached Thumbnails
Click image for larger version

Name:	DSC03827.jpg
Views:	442
Size:	430.2 KB
ID:	109476  
__________________

__________________
moijwall is offline   Reply With Quote
Old 21-09-2015, 20:19   #2
Senior Cruiser

Cruisers Forum Supporter

Join Date: May 2013
Location: Oregon to Alaska
Boat: Wheeler Shipyard 83' ex USCG
Posts: 1,699
Re: Perkins 4.236 oil cooler problems

To test your oil cooler, you can use water pressure on one side and look for water running out the other side. Or use air and a gauge and see if the pressure holds.
There are places that repair heat exchangers. Usually larger ones, but they could probably test yours. Also look for after market heat exchangers. Many marine stores sell them. Repair labor might cost as much as a replacement.
The Perkins Parts and Engines Superstore sells oil coolers.
Ebay is one place to look for parts and replacements.
__________________

__________________
Lepke is online now   Reply With Quote
Old 21-09-2015, 21:08   #3
Senior Cruiser
 
DeepFrz's Avatar

Cruisers Forum Supporter

Join Date: Mar 2006
Location: Winnipeg
Boat: None at this time
Posts: 7,930
Re: Perkins 4.236 oil cooler problems

You could also try Trans Atlantic Diesel.
__________________
The Blue Dot Campaign. This Changes Everything.
DeepFrz is offline   Reply With Quote
Old 21-09-2015, 21:23   #4
Registered User
 
sy_gilana's Avatar

Join Date: Jan 2005
Location: On board
Boat: Van de Stadt 50'
Posts: 1,101
Send a message via Skype™ to sy_gilana
Re: Perkins 4.236 oil cooler problems

That tube stack must come out of there. Then the truth will be known.
__________________
Tight sheets to ya.
http://gilana.org
sy_gilana is offline   Reply With Quote
Old 22-09-2015, 15:14   #5
Registered User

Join Date: Sep 2015
Location: Sweden
Boat: Nauticat 36
Posts: 12
Re: Perkins 4.236 oil cooler problems

Thx a lot for the links and the advices!

The oil cooler is 100% detached from the Engine and the tube stack has been completly out. Just by Visual inspection it looked fine.
I did put it all together again yesterday for future tests.

As I see it there are three possible causes:
1. The tube stack is broken - but it looks ok
2. The O rings are worn out - but they look ok
3. The only bad thing I've found is that the tube stack "edge" prior to the O ring is a Little damaged/corroded

I will tear it apart again tomorrow to measure the tube stack prior to asking it they are possible to obtain. I will share a photo of the damaged part.
Taking friday of to conduct some sort of test using air while holding it in a bucket of water.

As a desperate act I actually bought a new Bowman oil cooler dimmensioned for 4.236 when I bought some other stuff.
But getting it in Place would require a massive rebuild.
I will give eBay another try, so far I haven't found the magic Word that gives the right result. I find oil coolers for the 400 series but they are different.

Back tomorrow with some pictures
__________________
moijwall is offline   Reply With Quote
Old 22-09-2015, 22:12   #6
Marine Service Provider

Join Date: May 2011
Location: PDX
Boat: Gulfstar 50
Posts: 893
Re: Perkins 4.236 oil cooler problems

Look for an old world craftsman radiator repair shop i your location. Then it to them and have them clean it, rebuild it, test it and paint it. Then you will know that it will last a while.
__________________
evm1024 is online now   Reply With Quote
Old 23-09-2015, 12:32   #7
Registered User

Join Date: Sep 2015
Location: Sweden
Boat: Nauticat 36
Posts: 12
Re: Perkins 4.236 oil cooler problems

Quote:
Originally Posted by evm1024 View Post
Look for an old world craftsman radiator repair shop i your location. Then it to them and have them clean it, rebuild it, test it and paint it. Then you will know that it will last a while.
Wish that I could find one
Living in Sweden and it seems that craftmanship has vanished.
__________________
moijwall is offline   Reply With Quote
Old 23-09-2015, 12:42   #8
Marine Service Provider

Join Date: May 2011
Location: PDX
Boat: Gulfstar 50
Posts: 893
Re: Perkins 4.236 oil cooler problems

Sorry to hear that. There is only one in my city too. They can do a full rebuild.
__________________
evm1024 is online now   Reply With Quote
Old 23-09-2015, 13:15   #9
Senior Cruiser
 
Cheechako's Avatar

Cruisers Forum Supporter

Join Date: Aug 2006
Location: Skagit City, WA
Posts: 19,342
Re: Perkins 4.236 oil cooler problems

So the oil in the engine pan is not white like that? or... how do you know it's the cooler that's the problem?
__________________
"I spent most of my money on Booze, Broads and Boats. The rest I wasted" - Elmore Leonard











Cheechako is offline   Reply With Quote
Old 23-09-2015, 14:48   #10
Registered User

Join Date: Sep 2015
Location: Sweden
Boat: Nauticat 36
Posts: 12
Re: Perkins 4.236 oil cooler problems

Quote:
Originally Posted by Cheechako View Post
So the oil in the engine pan is not white like that? or... how do you know it's the cooler that's the problem?
That is part of the problem - I do not know that

If I understand it correctly that is the only Place where seawater and oil meet. And a "good" way for my Engine oil to sneak out!

Initially I saw no trace of white in the Engine oil but now it is all White. My theory is that as long as the Engine is running the oil pressure is higher so the oil push out. When I turn of the Engine and the pressure falls the water goes in.
And when I opened the oil cooler ther was White oil where it only should be seawater.

I welcome any theory! It is not the cylinder head gasket - I have had the cylinder head removed and it looked fine.
__________________
moijwall is offline   Reply With Quote
Old 23-09-2015, 14:56   #11
Registered User

Join Date: Sep 2015
Location: Sweden
Boat: Nauticat 36
Posts: 12
Re: Perkins 4.236 oil cooler problems

Here are the pictures of the little damage on the tube stack (to the left). It seems to be over the o-ring and should only be in water. But maybe....
Might be easier to fix than the tubestack itself
Attached Thumbnails
Click image for larger version

Name:	IMG_3416[1].jpg
Views:	359
Size:	412.4 KB
ID:	109731  
__________________
moijwall is offline   Reply With Quote
Old 23-09-2015, 19:21   #12
Registered User
 
NahanniV's Avatar

Join Date: Mar 2011
Location: On the Boat
Boat: Finnsailer 38
Posts: 1,142
Re: Perkins 4.236 oil cooler problems

It looks OK, but you must pressure test it to be sure.

Part number for the oil cooler tube stack is:
24865275

New ones can be had, but will be outrageously expensive:

24865275 - VARIOUS COOLING Perkins - 24865039 - 2486442

Cheers,
JM.
__________________
NahanniV is offline   Reply With Quote
Old 23-09-2015, 19:31   #13
Registered User

Join Date: Aug 2009
Location: Port Welshpool Australia
Boat: sold swan new cat under construction / Canados 50s
Posts: 755
Images: 16
Send a message via Skype™ to beneteau-500
Re: Perkins 4.236 oil cooler problems

Serck heat exchangers and oil coolers are still made they are made in uk in birminningham some where in previous threads I have posted you will find the contact details

Warning they are not cheap
__________________
beneteau-500 is offline   Reply With Quote
Old 23-09-2015, 19:38   #14
Registered User

Join Date: Aug 2009
Location: Port Welshpool Australia
Boat: sold swan new cat under construction / Canados 50s
Posts: 755
Images: 16
Send a message via Skype™ to beneteau-500
Re: Perkins 4.236 oil cooler problems

www.serckheatexchaners.co.uk
__________________
beneteau-500 is offline   Reply With Quote
Old 23-09-2015, 19:47   #15
Registered User

Join Date: May 2008
Location: daytona beach florida
Boat: csy 37
Posts: 2,844
Images: 1
Re: Perkins 4.236 oil cooler problems

Dont know if this applies to a 4-236 because I have a 4-108. I also have the factory shop manual.

In the shop manual it specifically addresses the oil cooler and states that the oil cooler has been found to be unnecessary except in cases where the engine is used in severe service. If someone has that manual the paragraph is near page 46. Because of that I have always felt that, if it failed, I would simply run the oil line around it.
__________________

__________________
Take two at low eight
onestepcsy37 is offline   Reply With Quote
Reply

Tags
oil, perkins

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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Oil Pressure gauge and buzzer on Perkins M4.236 benet250 Engines and Propulsion Systems 1 06-04-2015 13:11
Oil drain plug on a perkins 4.236 ProjectElandra Engines and Propulsion Systems 7 13-02-2015 07:24
High Oil Pressure Old Perkins 4.236 Sandiiyam48t Engines and Propulsion Systems 7 29-11-2013 22:51
Want To Buy: Perkins 4.236 oil cooler skibum57 Classifieds Archive 1 20-03-2013 09:32
Perkins 4-236 low oil pressure alibaba.e Engines and Propulsion Systems 7 27-03-2009 19:55



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 16:03.


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.