Register now to get rid of these ads!

Technical Fuel out of Accel. pump hole? Stromberg 81

Discussion in 'Traditional Hot Rods' started by FlyinA, Feb 1, 2020.

  1. FlyinA
    Joined: May 17, 2017
    Posts: 96

    FlyinA
    Member

    I’m running dual original 81s on my Model A. After running for a minute fuel will suddenly start coming out of the accelerator pump hole! The inlet valve seems good and i dry set the float level, what might cause this?
     
  2. alchemy
    Joined: Sep 27, 2002
    Posts: 15,333

    alchemy
    ALLIANCE MEMBER

    What's your fuel pressure?
     
    stillrunners and dana barlow like this.
  3. dana barlow
    Joined: May 30, 2006
    Posts: 3,842

    dana barlow
    Member
    from Miami Fla.
    1. Y-blocks

    Like Alchemy ask? More then 3 PSI can over come float,add to that if motor vibs are high{out of balance a little} it can bounce float too
     
    stillrunners likes this.
  4. Do you have the felt washer at the top of the accelerator pump rod ?
     
    Register now to get rid of these ads!

  5. Larry W
    Joined: Oct 12, 2009
    Posts: 729

    Larry W
    Member
    from kansas

    FlyinA likes this.
  6. Jet96
    Joined: Dec 24, 2012
    Posts: 1,085

    Jet96
    ALLIANCE MEMBER
    from WY

    ^^^Yup been down this road, I messed with the 97's on my roadster a lot. Couldn't get them to quit randomly overflowing. Installed a holley regulator and enjoyed a whole summer of leak-free motoring. I'm assuming you're not gravity fed from the cowl tank...
     
    FlyinA and winduptoy like this.
  7. FlyinA
    Joined: May 17, 2017
    Posts: 96

    FlyinA
    Member

    Thanks all for the replies! I'm running a Holley low-pressure regulator right now, its supposed to be set at 2.5psi out of the box but I'm not gonna trust a piece of paper so I ordered a pressure gauge today to see if I can eliminate the issue
     

Share This Page

Register now to get rid of these ads!

Archive

Copyright © 1995-2020 The Jalopy Journal: Steal our stuff, we'll kick your teeth in. Terms of Service. Privacy Policy.

Atomic Industry
Forum software by XenForo™ ©2010-2014 XenForo Ltd.