Register now to get rid of these ads!

Added 6 Volt Fuel Pump on 8ba And Now Have New Problems. Please Help.

Discussion in 'The Hokey Ass Message Board' started by FordMan53, Dec 23, 2010.

  1. FordMan53
    Joined: Mar 18, 2009
    Posts: 1,293

    FordMan53
    Member
    from So Cal

    Before I added it I was getting vapor lock symptoms, so I added the electric pump, and by-passed the mechanical. The pump is an inline, close to the tank, new out of the box. Have a Holley 4160 390cfm 4bbl carb.

    Have a regulator right before the carb set at 5.

    Took it out for a while, and when I get on it, I quess all barrels, it bogs down hard and turns off. I turned the psi up to 5 and it idles fine and drives fine at slow regular speeds, but when I go up hill or fast, boom, turns off. Down hill it was fine, even when I got on it. Any ideas?
     
  2. Drive it so it shuts down, then immediately kill the pump and engine, then coast to the side of the road. Pull a bowl cover and determine if you have any fuel in the carbys. This will be a clue as to whether your problem is pump or carby related.

    Cosmo
     
  3. shainerman
    Joined: Apr 18, 2009
    Posts: 820

    shainerman
    Member

    somethings is off in the fuel line, maybe air? maybe shit in your tank? How does the filter look? And is the fuel pump the LOWEST link in your fuel system? Are you going directly fomr the pump to the reg to the carb or are you still going through the mech pump. Also get a pressure gauge on there and see how it reads. A lot of regulators are shit nowadays.
     
  4. FordMan53
    Joined: Mar 18, 2009
    Posts: 1,293

    FordMan53
    Member
    from So Cal

    The pump is at the lowest point, am going to put some air into the line to the tank, see if I can get something shaken lose. Running the pump-regulator-carb.
     

  5. thirty7slammed
    Joined: Sep 1, 2007
    Posts: 886

    thirty7slammed
    BANNED
    from earth

    Just a thought, is your fuel cap vented?
     
  6. JohnEvans
    Joined: Apr 13, 2008
    Posts: 4,883

    JohnEvans
    Member
    from Phoenix AZ

    Make sure the tank is vented also.
     
  7. FordMan53
    Joined: Mar 18, 2009
    Posts: 1,293

    FordMan53
    Member
    from So Cal

    Should there be a hole by the fill hole somewhere? Ths cap I have I leave lose, should I get a vented cap? Where do they sell those? Thx
     
  8. thirty7slammed
    Joined: Sep 1, 2007
    Posts: 886

    thirty7slammed
    BANNED
    from earth

    Im not sure of if your tanks vented or not, just know is the electric pump creates a total vacuum it willl not supply enough fuel..............
     
  9. FordMan53
    Joined: Mar 18, 2009
    Posts: 1,293

    FordMan53
    Member
    from So Cal

    Getting a vented cap tomorrow, found a local place. Will try that out first and see if that solves the problem. Thx
     
  10. FordMan53
    Joined: Mar 18, 2009
    Posts: 1,293

    FordMan53
    Member
    from So Cal

    Added vented cap, and still had problem, then low and behold a new fuel leak! When I added the regulator it came with pos plastic fittings, but that is all I had so I thought it was fine. Well, one was cracked and was sucking air when I hit it I quess, so replaced it with brass and a new regulator, and boom, problem solved!
     
    Last edited: Dec 24, 2010
  11. arkiehotrods
    Joined: Mar 9, 2006
    Posts: 5,907

    arkiehotrods
    Member

    That's great! Glad you were able to troubleshoot it and solve the problem.
     
  12. Buddy Palumbo
    Joined: Mar 30, 2008
    Posts: 3,859

    Buddy Palumbo
    Member

    Good to hear that all's well now .
     

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.