tin breather hole

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  • jorrow
    Senior Member
    • Feb 2008
    • 347

    #1

    tin breather hole

    Does anyone have a picture or knowlege of the exact location of a small hole or holes that went on the side of original knuckle valve tins circa 1947? jeff
  • knuckleheadtim
    Senior Member
    • Jan 2008
    • 141

    #2
    Only the intake tins have the hole in them.

    Knuckle Tin.jpg

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