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  1. #1

    Genset heat exchanger replacement

    Well, 17 year old heat exchanger on my norpro 18 popped a leak Norpro is out of business so I m looking at options.

    Original Norpro design has built in welded expansion tank above the HE. Thinking about using a generic HE like those found on NL, Ohno etc with an external plastic recovery tank

    Any reason why that wouldn’t work? Not sure what the benefit of that integral expansion tank is
    Attached Images
    Last edited by Pascal; 12-10-2019 at 11:40 AM.
    Pascal
    Miami, FL
    1970 53 MY #325 Cummins 6CTAs
    2014 26' gaff rigged sloop
    2007 Sandbarhopper 13
    12' Westphal Cat boat

  2. #2

    Re: Genset heat exchanger replacement

    Off the shelf heat exchanger should work fine. The expansion tank will need to be something that can handle the pressure. Plastic tanks are just overflow bottles. You need to have a pressure cap in that system somewhere.
    Sky Cheney
    1985 53EDMY, Hull #CN759, "Rebecca"
    ELYC on White Lake--Montague, MI

  3. #3

    Re: Genset heat exchanger replacement

    Call Lenco up on Long Island, great people to work with, they built us some custom combo gear and steering coolers last year. Have used them many times over the last 30 years.

    https://www.lencocoolers.com/
    CRICKET
    1966 HAT50C101
    Purchased 1985 12v71Ns
    Repowered 1989 with 8v92TI
    Repowered 2001 with 3406E

  4. #4

    Re: Genset heat exchanger replacement

    Lenco is a great family company and does great work.

    As to redesigning the cooling system I'd not consider it.

    Ship the cooler to them and they will get you a great replacement in return


    Dont go cheap. They build all kinds of products and cost will be the determining factor for quality.
    Scott
    41C117 "Hattatude"
    Port Canaveral Florida.


    Marine Electronics and Electrical Products Distributor.

  5. #5

    Re: Genset heat exchanger replacement

    Hey Pascal

    We've distributed Lenco Coolers in Australia this past 15 years. They are a great company.

    Scott.
    Last edited by scottinsydney; 12-10-2019 at 11:09 PM.
    +++
    1984 61MY #353 with 9' cockpit extension.
    Sydney, Australia.

  6. #6

    Re: Genset heat exchanger replacement

    One of the coolers on Lenco's home page looks exactly like the one Pascal posted. Heck, if you call them, they may have what you want in stock and ready to go.
    Sky Cheney
    1985 53EDMY, Hull #CN759, "Rebecca"
    ELYC on White Lake--Montague, MI

  7. #7

    Re: Genset heat exchanger replacement

    Have you tried contacting Sen-Dure in Ft. Lauderdale?

  8. #8

    Re: Genset heat exchanger replacement

    Thanks guys. I got a reasonable quote from Sound Marine Diesel who used to be a dealer for Norpro. $700 for the same HE, made by Lenco

    I had also contacted lenco but no answer yet
    Pascal
    Miami, FL
    1970 53 MY #325 Cummins 6CTAs
    2014 26' gaff rigged sloop
    2007 Sandbarhopper 13
    12' Westphal Cat boat

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