Boiler Leaks

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Boiler Leaks

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  • #70823
    M R
    Participant
      @mr37628

      To cure the small leaks in a boiler,Stan Bray suggests that the holes be drilled and filled with a tight fitting plug where possible and although soft solder is mentioned,he sounds as if this is not an ideal solution:Martin Evans book on model boilers,states that soft solder can be used but,it must not be the ordinary plumbers grade.Henry Greenly’s book “Model Engineering” mentions using oatmeal (within reason).How is this used,is it mixed with the water to be used to fill the boiler and then heated-will oatmeal used to make porridge do the job? This method reminds me of the old trick of putting an egg in a leaky car radiator.

      In an (oldish catalogue) Blackgates Engineering list a lead solder melting at 296 degrees centigrade is this suitable for use on a copper boiler which is already soldered with a 610-620 degree melting range silver solder.Work on my engine is at a standstill so any information will be much appreciated

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      #2716
      M R
      Participant
        @mr37628

        How are they cured?

        #70828
        JasonB
        Moderator
          @jasonb
          Talk to your boiler inspector first but you may be able to use a high temp soft solder like Comsol which is what Blackgates sell, Reeves also do it.
           
          Jason
          #70830
          Jens Eirik Skogstad 1
          Participant
            @jenseirikskogstad1
            Inn old days the leaking boiler was cured with horse dung
            #70838
            Roderick Jenkins
            Participant
              @roderickjenkins93242
              Alec Farmer in “Model Locomotive Boiler Making” recommended the use of high temperature soft solder for sealing small leaks. From what I remember though, you cannot then go back and do any silver soldering, the soft solder will alloy with the hard solder and form a brittle compound. My “Jenny Lind” project stalled at this point many years ago with a pin hole in the firebox crown. I never could decide how to fix this – it’s still waiting.
               
              Rod
              #70848
              KWIL
              Participant
                @kwil
                Rod you are correct, once you introduce lead there is no going back. A good boiler maker may be able to fix it with silver solder. How big a leak and where?
                 

                Edited By David Clark 1 on 27/06/2011 21:00:40

                #70887
                M R
                Participant
                  @mr37628

                  JasonB
                  M R 26/06/2011 11:04:47
                  1 forum posts
                   To cure the small leaks in a boiler,Stan Bray suggests that the holes be drilled and filled with a tight fitting plug where possible and although soft solder is mentioned,he sounds as if this is not an ideal solution:Martin Evans book on model boilers,states that soft solder can be used but,it must not be the ordinary plumbers grade.Henry Greenly’s book “Model Engineering” mentions using oatmeal (within reason).How is this used,is it mixed with the water to be used to fill the boiler and then heated-will oatmeal used to make porridge do the job? This method reminds me of the old trick of putting an egg in a leaky car radiator.

                  In an (oldish catalogue) Blackgates Engineering list a lead solder melting at 296 degrees centigrade is this suitable for use on a copper boiler which is already soldered with a 610-620 degree melting range silver solder.Work on my engine is at a standstill so any information will be much appreciated
                   
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                  JasonB

                  Thanks for taking the time to reply will most likely use Consol.Not in touch with a boiler inspector unfortunately.
                  Jens Eirik Skogstad An Interesting fact,horse dung appears to have been very useful item in the pastie;bell moulds,explosives not to mention soil treatment and rose mulch.If I find a 1in scale horse I may try that method.
                  Roderick Jenkins
                  I can no reason for the need to further silver soldering so as mentioned above it looks like
                  Maurice Rhodes

                  Edited By David Clark 1 on 27/06/2011 21:00:23

                  #70896
                  David Clark 13
                  Participant
                    @davidclark13
                    Hi Maurice
                    Please click on the past from Word button or paste into notepad then copy and paste into here.
                    Otherwise you mess the format up.
                    regards David
                     
                    #70899
                    Terryd
                    Participant
                      @terryd72465
                      Posted by M R on 27/06/2011 19:14:56:

                      Jens Eirik Skogstad An Interesting fact,horse dung appears to have been very useful item in the pastie;…………….
                       
                       

                      Maurice Rhodes

                      Edited By David Clark 1 on 27/06/2011 21:00:23

                      I prefer swede, onions and minced beef in my pasties. Still, each to his own, so to speak.
                       
                      Best regards
                       
                      Terry
                      #70956
                      Sub Mandrel
                      Participant
                        @submandrel
                        I’m a vegetarian, so as long as it’s herbivore dung in my pasties…
                         
                        Neil
                        #70995
                        M R
                        Participant
                          @mr37628
                          Past ie-What a difference a space makes.Think I’m good enough to get a job journalism ?
                          MR
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