New Fuel Pump 1 line in not 2?

Discussion in 'Street/strip 400/430/455' started by mjoe7, Jul 9, 2004.

  1. mjoe7

    mjoe7 In the beginning God...

    I bought a new fuel pump, the high performance one through TA Performance. (Pictured)
    Question:
    The old pump has 2 lines from the gas tank that hooked to the old pump, a big main line and a -smaller one-, and there is the one that goes to the Carb.
    On the new pump there is no hook-up for the 2nd -smaller line-, just the main fuel line and the one that goes to the Carb.

    What do I do with the extra fuel line? Plug it? If so where, at the the fuel tank or at the end of the line? Will I need to vent the tank somehow?
    Any answers will be greatly appreciated.
    Mike
     

    Attached Files:

  2. mjoe7

    mjoe7 In the beginning God...

    Anyone?

    Does anyone have an answer for me?
     
  3. NOTNSS

    NOTNSS Gold Level Contributor

    Plug the unused return line at the pump and forget about it. There should be vents elsewhere on the tank, probably on the forward corners.
     
  4. Bob Kuna

    Bob Kuna Active Member

    Quadrajet

    Hello
    I was wondering can this fuel pump be used with a quadrajet carb? Also is this pump an improvement over the stage 1 pump? Has anyone had any unusual problems with this fuel pump? My stage 1 pump just started leaking and I am thinking about trying this pump also.
    Bob
     
  5. 70 gsconvt

    70 gsconvt Silver Level contributor

    That return line can be just plugged. If you get under your car and look up at the tank, you should see a vent tube setup with a white plastic piece on the inside passenger side of the tank (unde the rear, passenger side of car). That is your tank's vent.
     
  6. 462CID

    462CID Buick newbie since '89

    Some are unvented, though...like mine, early '70. The original gas cap warns that the tank is not vented and fuel may exit the tank when the cap is opened.

    Bob-

    no reason the pump can't be used with any carb, Q-jet or other otherwise. You may have to make yourself a fuel line, though. Not hard to do, but a deifinite time sink. get a good tubing bender, not just one of the crummy handles with a circlular forming tool at one end- they are worthless in my opinion
     
  7. 84SilverbirdSE

    84SilverbirdSE Smokey needed a Buick

    i was wondering about this tpopic, dont you NEED a fule return line though? I was kinda sure u can plug off the vapor return line but wasnt to sure about that either. Any tips would be greatly appreciated because Im about to put my project back yogeather and run all new fule and brake line in and if I can get away without running fule return and vapor line it would save me alot of $$. Thanks!
     
  8. 462CID

    462CID Buick newbie since '89

    My vapor return has been securely plugged since 1991. The car was a daily driver 12 months a year from 1989 to 1997, then summer daily driver, 1997 to present. No problems.
     
  9. mjoe7

    mjoe7 In the beginning God...

    Thanks

    I thought that would be the answer, just plug it. Thanks for the input.

    So why does it take longer or use more cranks to start than before using new pump?
    Mike
     

Share This Page