Logo
Results 1 to 2 of 2
  1. #1

    Default Can a punctured heat exchanger be welded/soldered?

    I have a Universal Model 25 with the 3" heat exchanger 299835. One of the mounting hose clamps failed and the heat exchanger vibrated against the underside of the exhaust elbow and developed a puncture leak. The leak is of sea water, not the internal coolant. Can this be fixed with a weld? The cylindrical shell of the exchanger appears to be a copper alloy - is the repair a solder? Thanks for any advice - I'm trying to avoid buying a new one for $350....By the way - the clearance between the 3" exchanger and the exhaust elbow is about zero - is there any trick to mounting this? Thanks

  2. #2
    Join Date
    Sep 2008
    Location
    Maryland - USA
    Posts
    7,258

    Default Re: Can a punctured heat exchanger be welded/soldered?

    Usually, most can be repaired.....the biggest issue/concern is the state of the metal, especially on the 'sea' side....if it is solid and not corroded excessive, satisfactory repairs can be done. if you don't have the experience, I'd suggest finding a local radiator shop thats been around a while. personally, I prefer brazing the larger fittings....

Similar Threads

  1. heat exchanger dry
    By slow cruiser in forum Crusader Marine Engine Forum
    Replies: 10
    Last Post: 06-15-2015, 06:35 PM
  2. heat exchanger
    By bcclew in forum Other Gas Inboard Mfgs IO and Sterndrive Questions
    Replies: 3
    Last Post: 12-03-2013, 09:41 PM
  3. 671 TIB Heat Exchanger
    By viking45 in forum Detroit Diesel
    Replies: 1
    Last Post: 08-16-2012, 05:52 PM
  4. Oil in heat exchanger
    By aceman in forum Archive 2003-2007
    Replies: 3
    Last Post: 05-02-2007, 09:14 AM
  5. Heat Exchanger
    By bojangle in forum Mercruiser Sterndrive Archive
    Replies: 4
    Last Post: 04-18-2007, 10:12 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •