heat exchanger cleaning services

Discussion in 'Downeast Engine Room' started by wonmore, Nov 2, 2018.

  1. wonmore

    wonmore Member

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    what is opinions on having a chemical cleaning done on heat exchangers,both trans and oil coolers and water side of aftercoolers?
     
  2. ThePartsGuy

    ThePartsGuy Member

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    Your coolers are very important to get on a preventative maintenance program. The expense of replacing can be $$$$$. Most marine engine manufactures will have a service interval recommendation.

    If you are not experiencing a "heating problem" or "temp gauge creep" there are a few products you can use to circulate around the sea water side that will keep the coolers in good health. Many here have opinions on which product is better or what they have had good luck with so I will leave that to them. If you are having heating issues then taking the coolers off and having them chemically treated, re-assembled and pressure tested is a great service to do. IMHO that is.
     
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  3. Diesel Jerry

    Diesel Jerry Captain

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    Well said, and I agree that running redlyme, barnacle buster, and the like is good, but it isn't a substitute for a real service.
     
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  4. mike@mpi

    mike@mpi Senior Member

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    Sending the cooling system parts to a cooling systems shop during scheduled maintenance is way different than just getting scale out of the water passages. fteleldi.jpg ftelem.jpg
     
    Last edited: Nov 3, 2018
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  5. mike@mpi

    mike@mpi Senior Member

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    And this C series
     

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  6. mike@mpi

    mike@mpi Senior Member

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    And their housings aftrclr1.png aftrclr5.JPG
     
  7. Diesel Jerry

    Diesel Jerry Captain

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    Curious Mike, what did all the O-rings and gaskets cost for that Cummins?
     
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  8. ThePartsGuy

    ThePartsGuy Member

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    Yeah why are those o-rings so $$$$?
     
  9. ThePartsGuy

    ThePartsGuy Member

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    Thems some clean ass coolers! lol.

    Great pics. It is important for people to see this difference. Some of our customers take their coolers off every 5th season and have them disassembled, tanked and tested..... and then of course some of our customers own sailboats....
     
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  10. Diesel Jerry

    Diesel Jerry Captain

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    I was going to compare them to the $600+ for the Volvo D-6 I just serviced. Not to mention what a C.F. Of design. Just stupid.
     
  11. mike@mpi

    mike@mpi Senior Member

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    Thanks for the positive replies. The o- ring's (2) with my discount from Cummins cost me about the same as the $40 Tony charges for his. The intake heater gaskets are about $5 each.
    The reason I pay so much (and maybe some other people) is because it's such a critical component I don't want to experiment with outside suppliers. I started using Tony's O-rings (no problems at all) but I just don't have the guts to go to a supplier like Paramount, where I'm sure the generic $2 apiece O-rings they matched up would work just fine.
    As for the aftercooler elements and their housings coming out so well, that credit goes to my neighbor and friend Bo who owns some of a business that does welding and heavy duty cooling systems (like hospital standby gensets). He charges by the hour to clean and repair the cores and housings, and of the 40 plus ones I've sent there, maybe only 2 have been beyond repair. At something like $1800 an element for new and $2000 a housing replacement cost, his $200 to $400 average cost is a bargain to my customers.
     
    Last edited: Nov 4, 2018
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  12. JimRP31

    JimRP31 Captain

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    I just had all my coolers removed and serviced. (see Engine Work) The previous owner was not big on maintenance. After going through the process, I think it was well worth the money. It also gives me a starting point for future maintenance.
     

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