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Thread: Help w/gas vaccuum seal for XK140

  1. #1
    Junior Member
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    Mar 2018
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    Charleston, SC
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    Help w/gas vaccuum seal for XK140

    I am having trouble installing the black plastic half ball piece that goes on the metal disk that is attached to the spring under the gas tank door. This piece creates a vaccum seal for the gas tank. I cannot figure out how to make the black piece stay attached to the metal disk. I also cannot get the black piece to stretch to fit over the metal disk.

    Appreciate the help. The first and third photos are upside down.

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  2. #2
    Junior Member
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    Jan 2014
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    Uithoorn Netherlands
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    hallo,

    That is the wrong seal, that is the one for a XK150 late, that tank has a build in ventilation.
    The right one for a XK140 is a cork round seal.
    As the is no ventilation on the XK140 tank, it will suck vacuum, and you do not get any fuel after a while.

    regards,
    Peter Jan
    XK150fhc ( 1961) /XK140fhc (1955)

  3. #3
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    Thank you for the information. I was told the black 1/2 ball was a replacement for the cork round seal...

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