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1966 Atlas with leaky petcock

Discussion in 'Other Norton Motorcycles' started by Mr.Atlas, Mar 4, 2019.

  1. Mr.Atlas


    Jan 23, 2019
    Hello all!

    I have a 1966 Atlas with a leaky petcock. I would like to replace it. Can anyone post a pic of what the stock petcock looks like? Part #? Opinions as to whether stock or aftermarket is better?
    Ultimately, I would like one that doesn't leak, and I'm not married to stock unless aftermarket is completely butt-ugly!
  2. texasSlick

    texasSlick VIP MEMBER

    Jan 2, 2013
    Replacing cork seal:


    Picture of Ewarts type Atlas fuel tap:


    The best aftermarket fuel tap is a Pingle. Unfortunately, they do not make a version with a 1/2 BSP male. They do make one with a 1/4 male NPT ..... two options ..... 1) tap out 1/2 female BSP on tank bung to 1/4 NPT (ugh!), .... 2) obtain adapter 1/4 NPT female x 1/2 BSP male.

    Last edited: Mar 5, 2019
    Mr.Atlas likes this.
  3. Mr.Atlas


    Jan 23, 2019
    Thanks for the response, Slick. As I suspected, the petcock on my Atlas is not the same as the one you show. I’ll research further the options you present. Thank you!!

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