Pre-1907 Hedstrom Carburettor Info

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  • kmueller
    Member since 2011
    • Jun 2011
    • 3

    #1

    Pre-1907 Hedstrom Carburettor Info

    Hello, I am looking for measurements of the float chamber components of a pre1907 carb for the restoration of an early Indian Hedstrom engine. I am missing the lower part of the carburettor. I would be very grateful if someone is able to help. Many thanks in advance, Klaus
  • T. Cotten
    Gadfly from the Dumpster
    • Jun 2001
    • 8218

    #2
    I have never held one in my hand, Klaus,..

    And I won't even pretend to understand how they could work!

    But perhaps you can scale from drawings?

    HedstromCarb2001.jpg

    HedstromCarb001.jpg

    I have some excellent photos as well,

    ....Cotten
    AMCA #776
    Dumpster Diver's Motto: Seek,... and Ye Shall Find!

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    • kmueller
      Member since 2011
      • Jun 2011
      • 3

      #3
      Hi Cotton, thanks for the quick response! and drawings included! This particular carb is the later version with horizontal throttle barrel and the manifold exiting from the top. The air intake has a smaller diameter than the float chamber. The one I am looking for is the early version with the vertical throttle barrel and the manifold exiting from the side. The air intake is the same diameter as the float chamber (see attached picture). Thanks, Klaus
      Attached Files

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      • T. Cotten
        Gadfly from the Dumpster
        • Jun 2001
        • 8218

        #4
        Your attachment is too tiny, Klaus!

        (And its a bulky .png as well. I converted it to a .jpg with MSPaint, but still couldn't enlarge it.)

        I suspect this is the early version?

        Hedstrom4.jpg
        Hedstrom1.jpg
        It makes a lot more sense without the pilot plumbing to the intake manifold!

        ....Cotten
        PS: Sorry I have forgotten whom to credit for the pics...
        Last edited by T. Cotten; 07-02-2021, 09:42 AM.
        AMCA #776
        Dumpster Diver's Motto: Seek,... and Ye Shall Find!

        Comment

        • kmueller
          Member since 2011
          • Jun 2011
          • 3

          #5
          Thanks Tom, great stuff, that's the one! Now I hope that we will get lots of responses from people who are willing to help.

          Comment

          • T. Cotten
            Gadfly from the Dumpster
            • Jun 2001
            • 8218

            #6
            If you can measure dimensions of hardware on the top of your assembly, Klaus,..

            You should be able to proportionally determine the dimensions of missing hardware from the photos

            . Hedstrom3.jpgHedstrom2.jpg

            (It might be easier to start with a tomato can....)

            ....Cotten

            AMCA #776
            Dumpster Diver's Motto: Seek,... and Ye Shall Find!

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