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How to seal leaking fuel level sender?

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  • How to seal leaking fuel level sender?

    My 63 HawkGT is leaking around the circumference of the sender unit.
    I have gasket paper to cut a new one, but wonder if it would be better
    to use a paste like Form-a-Gasket that would better fill any voids.
    Also, with the new gas additives, are there any gasket materials that stuff like
    ethanol won't eat up?

    1950 Champion Starlight
    1963 Hawk GT
    Santa Barbara
    CA
    The 1950 Champion Starlight
    Santa Barbara
    CA

  • #2
    Don't use the silicone sealer, a freind of mine used it and some of it wound up in the fuel filter. Enough to stop the car from running.

    GARY H 2DR.SEDAN 48 STUDEBAKER CHAMPION NORTHEAST MD.

    Comment


    • #3
      About 2 years ago I made a new gasket with some thin cork gasket material. I did this over 2 years ago, still dry.


      Studebaker Fever
      60 Lark
      51 Champion
      Phil
      Arnold, Missouri

      Studebaker Fever
      60 Lark
      56 Power Hawk
      Phil Hendrickson
      Arnold, Missouri

      Comment


      • #4
        Nitrile rubber works for gaskets and fuel pump diaphragms. Not neoprene, which disintegrates or many silicones, which also seem to disintegrate.

        Sheets of it are available at some auto parts stores - I'm in Canada, so I presume your NAPA or something will carry it. It comes in about 3 thicknesses.

        Paul R

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        • #5
          Good timing, Richard. This is the next step for me to accomplish on my '63 GT. The cork gasket leaked when applied with no sealant. Would the nitrite material be applied with any sealant?

          Perry
          '23 Special Six,
          '50 Business Champ,
          '50 Starlight Champ,
          '60 Lark droptop,
          '63 GT
          Perry
          \'50 Business Champ,
          \'50 Starlight Champ,
          \'60 Lark Convertible,
          \'63 GT R1,
          \'67 Triumph TR4A

          Comment


          • #6
            It shouldn't be necessary to use a sealer with the gasket. But if you must, the "old" style permatex is gas resistant (#s 1 and 2). Never use silicone sealers where they will contact gasoline.

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            • #7
              I cut out a new paper gasket and applied a little old style Permatex gasket sealant over one year ago and it has never leaked. Easy fix.

              Mike with Speedster

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              • #8
                I've used cork. I think its thickness helps it deal with some of the irregularities you sometimes see. Also new brass washers for the screws is a good idea and Permatex can't hurt.

                Tim K.
                '64 R2 GT Hawk
                Tim K.
                \'64 R2 GT Hawk

                Comment


                • #9
                  The new rubber gaskets I bought from one of our Studebaker parts vendors are really good, and less than $3.00. Just order one from http://www.studebakerparts.com . Maybe they can put it in a first class mail envelope to save postage. No reason to do it the hard way.

                  REVISION: I just now looked it up. It's a whopping $1.00! See the part here, scroll to the bottom of the page.

                  [img=left]http://rocketdillo.com/studebaker/misc/images/Avacar-hcsdc.gif[/img=left]DilloCrafter

                  1955 1/2 Ton Pickup
                  The Red-Headed Amazon
                  Deep in the heart of Texas

                  Paul Simpson
                  "DilloCrafter"

                  1955 1/2 Ton Pickup
                  The Red-Headed Amazon
                  Deep in the heart of Texas

                  Comment


                  • #10
                    Thank you all for the suggestions. I will visit my NAPA today and first
                    try to get the nitrile rubber material or the cork gasket stuff. Probably
                    coat a little Permatex if the cork material.

                    1950 Champion Starlight
                    1963 Hawk GT
                    Santa Barbara
                    CA
                    The 1950 Champion Starlight
                    Santa Barbara
                    CA

                    Comment


                    • #11
                      Probably too expensive/hard to find these days, but the rubber tank sender gaskets for old style VW Beetles (like 1962 thru at least 1970, and maybe all the way up to the end of production)are just the right size. If I remember correctly, right screw holes and all.

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                      • #12
                        I just went through a perplexing gas leak situation with my 63 GT Hawk. I had replaced the original with a NAPA unit and had a leak at the sending unit. Replaced the gasket several times with several different materials. Still leaked. Found the leak to be the center plastic-to-metal joint of the sender, seeping profusely, not the sealing surface of the sender-to-tank. Watch for that one![8)]

                        Brian K. Curtis

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                        • #13
                          Chocolate Turkey:
                          What dash gauge are you using?
                          Do you know what range of ohm readings the NAPA unit puts out?
                          Is it for GM or Ford or Chrysler?
                          Does the gauge read accurately for full and empty?
                          thanks
                          bob

                          62 GT Hawk

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