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Thread: lack of fuel

  1. #1
    Member CRAFTSMAN
    Join Date
    Sep 2007
    Location
    Pensacola,Fl.
    Posts
    51

    lack of fuel

    i have a holley 750 mech. that after i take it apart and put back together it runs great on the first two runs down the street then,only the front bowl runs out of fuel...and motor dies.can't restart because no fuel will re-enter front boel.back bowl stays at proper level.If I take the carb apart and go through it it runs great again untill third blast and same thing happens.I have replaced the needle and seat,checked for trash in carb...same problem.I have a holley mech. pump,an in line fuel filter,stock fuel line and gas tank.any ideas ???????
    "RACE OR RIOT WHATS THE DEAL"

  2. #2
    Senior Member MASTER BUILDER
    Join Date
    Jul 2004
    Location
    Elm Mott, Texas
    Posts
    197
    Run it until it goes dry and look in the hole for setting your float and make sure the float is not stuck at the top and not letting any fuel back in.
    Wasn't me.

  3. #3
    Member CRAFTSMAN
    Join Date
    Sep 2007
    Location
    Pensacola,Fl.
    Posts
    51

    lack of fuel

    ok.if it is what is causing that.everything in the carb is fresh and looks good.if i take carb apart and put back together it will run forever as long as i dont blast it down the street.i can rev it up to 7000 in the shop and it runs great.cant figure out why it only does it under load.can it be a fuel delivery problem?trash in fuel system somewhere?back bowl always has fuel.
    "RACE OR RIOT WHATS THE DEAL"

  4. #4
    Senior Member DYNO OPERATOR
    Join Date
    Aug 2007
    Location
    Lost Creek, WV
    Posts
    533
    Does it have a filter behind the fuel inlet fitting in the carb? If so it might be pluged up.

    TS1955

  5. #5
    Senior Member RACING JUNKIE THERATTLER's Avatar
    Join Date
    Sep 2003
    Location
    MANIAC , MISSISSIPPI
    Posts
    1,469
    does your fuel line run close to headers or any heat source?? could be vapor locking..just a thought
    ***IN GOD WE TRUST***GOD BLESS AMERICA******

  6. #6
    Senior Member MASTER BUILDER
    Join Date
    Jul 2004
    Location
    Elm Mott, Texas
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    197
    For it to be a fuel delivery problem and your back bowl still be full you would have to be running off the front only in my opinion.

  7. #7
    Senior Member RACING JUNKIE
    Join Date
    Dec 2007
    Location
    ohio
    Posts
    810
    with the rear bowl staying full, i think your prob has to do with front float, either no spring on float shaft, or float not moveing freely on the shaft, binding etc...

  8. #8
    Senior Member RACING JUNKIE
    Join Date
    Mar 2006
    Location
    EUGENE,OR.
    Posts
    3,408
    X2.... float/needle & seat not moving freely.
    "I would walk through hell on Sunday before I fear the enemy"

  9. #9
    Senior Member DYNO OPERATOR
    Join Date
    Mar 2008
    Location
    New Orleans,La
    Posts
    515
    X3 on the float.
    Full Time Racing,WASTED $$ division

    http://www.racingjunk.com/profile/281924

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  10. #10
    Senior Member MASTER BUILDER
    Join Date
    Mar 2008
    Posts
    173

    no fuel infront bowl

    cant wait to see the answer to this problem. i will learn something from this chevy art

  11. Racing Junk


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