petcock leaking

Discussion in 'Engine, Fuel and Exhaust' started by tjeffrockinr, Oct 12, 2010.

  1. tjeffrockinr

    tjeffrockinr New Member

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    I have 2000 flstc that is leaking fuel from the stock vacuum petcock. It only seems to do it when I first start it or turn it off. I took it apart and inspected it but found no obvious problems. And it doesn't seem to do it all the time. Also there is a small hole machined in the final cover, does it go up or down when installed? I think it may be an air hole but I am not sure.

    Thank in advance.
     
  2. TQuentin1

    TQuentin1 Well-Known Member Staff Member Moderator

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    Personally, I do not like the vacuum operated petcocks. I would replace it with a Pingel manual petcock (see here Power-Flo™ Fuel Valves). Cut off and plug the vacuum line near the nipple on the manifold. I would suggest replacing the vacuum line with some new hose.

    JMHO.

    TQ
     
  3. Beer Hound

    Beer Hound Member

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    This is good advice! ^^^

    I was working on my Bud's 96 FXSTC and it started leaking and was getting worse every time I used it. Harley doesn't make a rebuild kit for it and if it was my bike I would have went with Pingle because you can buy parts and rebuild them. I put a Drag Specialties on his (his money). The hole goes down I believe.
     
  4. Jack Klarich

    Jack Klarich Expert Member

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    T Q has you covered here, The MOCO petcock was poor @ nest IMO
     
  5. tjeffrockinr

    tjeffrockinr New Member

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    Thanks for the info guys. I think I will try the pingel valve.
     
  6. NEWHD74FAN

    NEWHD74FAN Experienced Member Retired Moderators

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    Pingel valves are a very good choice, but personally I like vacuum operated valve shutoff, manual off, prime and reserve position. EFI has made the multi-position prime, "obsolete" but I am old fashioned. I also like the auto safety shutoff if vacuum is off...it allows you to walk away knowing fuel is pinched off.
     
    Last edited: Oct 19, 2010