1954 brake line leak - NCRS Discussion Boards

1954 brake line leak

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  • Guy M.
    Very Frequent User
    • November 1, 1993
    • 500

    1954 brake line leak

    Looks like I developed a leak at the front wheel cylinder connection and it removed some paint on the back of back plate. Whats the best thing to clean it up so I can repaint it? Carb cleaner? Thanks again!!
  • Mark E.
    Extremely Frequent Poster
    • April 1, 1993
    • 4527

    #2
    Re: 1954 break line leak

    Guy,

    To prep a metal surface for paint that's contaminated with brake fluid, begin by cleaning with brake cleaner, let dry, then apply wax/tar remover with a lint free cloth or paper towel, then scuff/sand as needed. I wouldn't use carb cleaner because it will leave a residue that isn't friendly to paint.

    I don't have a '54 (nice car; wish I did), but I suspect the backing plate may need to be removed to properly refinish it. Do you know the correct color/finish for this part?
    Mark Edmondson
    Dallas, Texas
    Texas Chapter

    1970 Coupe, Donnybrooke Green, Light Saddle LS5 M20 A31 C60 G81 N37 N40 UA6 U79
    1993 Coupe, 40th Anniversary, 6-speed, PEG 1, FX3, CD, Bronze Top

    Comment

    • Guy M.
      Very Frequent User
      • November 1, 1993
      • 500

      #3
      Re: 1954 break line leak

      Thanks Mark, did as you said and it worked perfectly. I did remove the back plate, that's the only way to do it correctly. These new systems are hard to get sealed, you really have to crank down more than you would think. Any kind of sealants to aid in this such as between washers and the like?

      Comment

      • Mark E.
        Extremely Frequent Poster
        • April 1, 1993
        • 4527

        #4
        Re: 1954 break line leak

        I'm not clear what you're asking. Would you re-phrase the question?

        Are you asking how to seal/protect a finish? Or thread sealant?
        Mark Edmondson
        Dallas, Texas
        Texas Chapter

        1970 Coupe, Donnybrooke Green, Light Saddle LS5 M20 A31 C60 G81 N37 N40 UA6 U79
        1993 Coupe, 40th Anniversary, 6-speed, PEG 1, FX3, CD, Bronze Top

        Comment

        • Guy M.
          Very Frequent User
          • November 1, 1993
          • 500

          #5
          Re: 1954 break line leak

          I was just curious if there was a thread/flare sealant of any kind. Generally I just really crank down on it to seal those new flares. Thanks again. Guy

          Comment

          • Jim L.
            Extremely Frequent Poster
            • September 30, 1979
            • 1808

            #6
            Re: 1954 break line leak

            No sealant is used on brake lines. They always install dry. If you have a fluid leak, disassemble and look for small burrs that would prevent a seal between the two mating surfaces.

            Jim

            Comment

            • Mark E.
              Extremely Frequent Poster
              • April 1, 1993
              • 4527

              #7
              Re: 1954 break line leak

              That's right. Maybe use WD-40 or similar to ensure threads don't bind/strip and flare seats fully.
              Mark Edmondson
              Dallas, Texas
              Texas Chapter

              1970 Coupe, Donnybrooke Green, Light Saddle LS5 M20 A31 C60 G81 N37 N40 UA6 U79
              1993 Coupe, 40th Anniversary, 6-speed, PEG 1, FX3, CD, Bronze Top

              Comment

              • Jim L.
                Extremely Frequent Poster
                • September 30, 1979
                • 1808

                #8
                Re: 1954 break line leak

                Originally posted by Mark Edmondson (22468)
                That's right. Maybe use WD-40 or similar to ensure threads don't bind/strip and flare seats fully.

                Never hurts to lubricate threads to ease assembly.

                I'd probably use brake fluid instead of WD40, though, to avoid any risk of contaminating the system.

                Jim

                Comment

                • Tim E.
                  Very Frequent User
                  • April 1, 1993
                  • 360

                  #9
                  Re: 1954 break line leak

                  Guy - I was introduced to a product called "EZ Turn (Fuellube)" sold by Aircraft Spruce & Specialty Co. It comes in a 5oz tube which will be a lifetime supply! The sealant was developed for the aircraft industry and is used on the faces of the mating surfaces of both brake and fuel line connections. Spread a small amount right where the tubing flare or, in this case, both sides of the crush washer touch. The sealant comes out of the tube the consistency of caulk and remains semi-hard. It is designed for use with fuels and brake fluid. Tim

                  Comment

                  • Jim L.
                    Extremely Frequent Poster
                    • September 30, 1979
                    • 1808

                    #10
                    Re: 1954 break line leak

                    In looking at the spec sheet for EZ Turn, I don't see where it's rated for possible contact with brake fluid.

                    You can read the specs here:

                    http://www.aircraftspruce.com/catalog/pdf/09-00180tech.pdf

                    Jim

                    Comment

                    • Gary C.
                      Administrator
                      • October 1, 1982
                      • 17647

                      #11
                      Re: 1954 break line leak

                      Jim,

                      All I know is that it works good on brake lines and especially on sealing the big nut on the '57 master cylinder.

                      Gary
                      ....
                      NCRS Texas Chapter
                      https://www.ncrstexas.org/

                      https://www.facebook.com/profile.php?id=61565408483631

                      Comment

                      • Jim L.
                        Extremely Frequent Poster
                        • September 30, 1979
                        • 1808

                        #12
                        Re: 1954 break line leak

                        Weeeeelllllll, nothing succeeds like success, so if you've used it and it works, that's great. Still I'm pretty particular about what comes in contact with or could come in contact with my brake fluid. I'll take a pass on EZ Turn in this application.

                        Jim

                        Comment

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