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Technical Gas Cap Filler Neck ID Help Needed Please

Discussion in 'The Hokey Ass Message Board' started by anothercarguy, Feb 10, 2023.

  1. A buddy of mine forgot his gas cap at a gas station and has been struggling to find a replacement. He thought the filler neck may have come from some sort of truck, but isn't sure (the filler neck is in his '33 Ford coupe stock tank). None of the early Ford caps fit.

    Anybody recognize it based on the photos and drawing showing the dimensions? Thanks in advance.

    0208231252a.jpg 0208231252.jpg 0208231320.jpg
     
  2. alchemy
    Joined: Sep 27, 2002
    Posts: 22,278

    alchemy
    Member

    Was it a shiny low-dome cap? If so, it was probably older, so maybe see if a cap from a fifties Ford, Chevy or Dodge truck works. I'd hope most parts places would have a cap for those. If they don't have them, maybe try 60's, then 70's?
     
    anothercarguy likes this.
  3. '29 Gizmo
    Joined: Nov 6, 2022
    Posts: 1,129

    '29 Gizmo
    Member
    from UK

    Could be 49-70 ford gas cap (type a in the pic)
     

    Attached Files:

    anothercarguy likes this.
  4. He tried the 2 sizes of Ford caps...neither fit...but the dimensions on the "A" cap sure look like they should work. Thanks for the comments/suggestions so far.
     
    Last edited: Feb 10, 2023
  5. gene-koning
    Joined: Oct 28, 2016
    Posts: 5,348

    gene-koning
    Member

    The openings for the tabs are pretty narrow.
    The next question is, does it need to be vented?
    I'd see if you can find measurements for a very early 60s Dodge or Plymouth outer quarter panel cap, like a Valent/Lancer or pickup.
     
    anothercarguy likes this.
  6. Turnipseed
    Joined: Oct 26, 2010
    Posts: 130

    Turnipseed
    Member

    When I bought my T-bucket it had an oil fill cap from a small block Chevy valve cover as a gas cap. It didn't work very well. A friend of mine that worked at an auto parts store pulled a bunch of gas caps off the shelf and we tried them until we found one that worked. This might be an option for you too.
     
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  7. saltflats
    Joined: Aug 14, 2007
    Posts: 13,225

    saltflats
    Member
    from Missouri

    Probably can't buy a vented gas cap anymore.
     
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  8. gimpyshotrods
    Joined: May 20, 2009
    Posts: 24,397

    gimpyshotrods
    ALLIANCE MEMBER

    Gates has this type of cap in locking and non-locking.

    https://www.gates.com/us/en/other-products/caps-and-thermostats/fuel-caps.html

    I will look for dimensions.
     
    anothercarguy likes this.
  9. gimpyshotrods
    Joined: May 20, 2009
    Posts: 24,397

    gimpyshotrods
    ALLIANCE MEMBER

    Last edited: Feb 10, 2023
    anothercarguy likes this.
  10. Thank you @gimpyshotrods. I've forwarded this info to my friend. Thanks all.
     
    gimpyshotrods likes this.

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