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05-26-2018, 12:57 PM
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#1
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Newbie
City: Solomons
Vessel Name: Still pandemonium
Vessel Model: Mainship Gen III
Join Date: Oct 2015
Posts: 1
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Perkins Heat Exchanger Tube Stack Removal
I am replacing a leaking tube stack bundle on my 6.3544M Perkins 200. I have both end plates removed and am working on getting the stack freed up to remove it aft. So far I have applied PB blaster and some tapping with a block and hammer, if anyone has removed this part before I would appreciate any tips.
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05-26-2018, 01:23 PM
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#2
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Valued Technical Contributor
City: Litchfield, Ct
Join Date: Aug 2012
Posts: 6,775
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Do you have it removed from the engine? If this is an integrated manifold/cooler it will be a lot of work to remove, but it may be the only way.
Then stand it up on end and spray PB Blaster around the outer edge at the joint. Let is sit for a day while spraying periodically. Reverse and do the same thing on the other end.
Then tap with a block of wood against the tube sheet.
David
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05-26-2018, 02:15 PM
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#3
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Senior Member
City: Marathon
Vessel Name: silver gift
Vessel Model: 45 jefferson
Join Date: Nov 2013
Posts: 291
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remove cooler from engine, then separate each cooler, trans,oil,turbo{if you have one} Once separated , remove corrodion from housing and bundle. pour vinager around edge and let work. use the block of wood and tap with mallet. may take time but will work its self loose.
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05-26-2018, 04:09 PM
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#4
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Guru
City: Seaford Va on Poquoson River, VA
Vessel Name: Old Glory
Vessel Model: 1970 Egg Harbor 37 extended salon model
Join Date: Jan 2016
Posts: 2,264
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If you can, heat the vinegar, it will work better. White vinegar works very well.
Another possibility, toilet bowl cleaner, the acidic kind. Very cheap from dollar store. I was cleaning the toilet and it smells like phosphoric acid.
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05-26-2018, 04:19 PM
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#5
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Enigma
City: Slicker?
Join Date: Oct 2007
Posts: 16,541
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Greetings,
Mr. S. Welcome aboard. Potentially silly question but is the bundle meant to come out? I think the bundle on our Lehman is soldered in place or I could be completely wrong about that.
__________________
RTF
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05-26-2018, 09:08 PM
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#6
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Senior Member
City: Marathon
Vessel Name: silver gift
Vessel Model: 45 jefferson
Join Date: Nov 2013
Posts: 291
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yes they do come out of the aluminmim housing. New O-ring are available from Perkins and a new bundle can be made.Housings not so much. Be careful !!!
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11-18-2021, 07:02 PM
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#7
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Veteran Member
City: Sidney
Vessel Name: The Lake
Vessel Model: 42' CHB Tricabin
Join Date: Oct 2021
Posts: 44
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Removed...now how do you put it back in?
Hi all,
I have been cleaning my heat exchanger...all looks spotless now. It's a Perkins 6.3544. I wasn't going to remove the rods as I could clean everything with them in. But when I went to re-assemble, I had a hard time putting the one gasket on that fits under the end flange. So I decided to remove the tubes - worked well with a piece of wood and a hammer.
Now that they are off I noticed what looks like grease inside the housing. I am ready to reassemble - should it be dry to reassemble, or should I be putting grease to help it slide in?
Thanks!
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11-18-2021, 07:31 PM
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#8
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Moderator Emeritus
City: Au Gres, MI
Vessel Name: Black Dog
Vessel Model: Formula 41PC
Join Date: Jul 2015
Posts: 21,131
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This is what Tony Athens recommends for using on a Cummins aftercooler when putting it back together.
Alco-Metalube Heavy Duty Lubricant, Standard Cartridge Tubes (2), 1.5 Lb. Ea.
__________________
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11-18-2021, 07:41 PM
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#9
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Veteran Member
City: Sidney
Vessel Name: The Lake
Vessel Model: 42' CHB Tricabin
Join Date: Oct 2021
Posts: 44
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Thanks!
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11-18-2021, 08:45 PM
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#10
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Moderator Emeritus
City: Au Gres, MI
Vessel Name: Black Dog
Vessel Model: Formula 41PC
Join Date: Jul 2015
Posts: 21,131
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I found some on Amazon.
__________________
Boat Nut:
If you are one there is no explanation necessary.
If you aren’t one, there is no explanation possible.
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11-20-2021, 12:05 AM
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#11
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Guru
City: NEW PORT RICHEY
Vessel Name: M/V Intrigue
Vessel Model: 1985 Tung Hwa Senator
Join Date: Dec 2019
Posts: 872
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