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fuel return line?

Discussion in 'Early CJ5 and CJ6 Tech' started by dakwag, Jan 6, 2014.

  1. Jan 6, 2014
    dakwag

    dakwag Member

    Woodstock, GA
    Joined:
    Dec 6, 2009
    Messages:
    119
    My fuel delivery configuration is a 1-4 PSI electric fuel pump, Holley 1-4 PSI fuel pressure regulator, Solex carburetor (F134)

    Question: if I restrict the regulator to 2 PSI will I need to run a bypass line back to the tank?

    Thanks in advance for any insights
     
    Last edited: Jan 6, 2014
    dakwag, Jan 6, 2014
    #1
  2. Jan 6, 2014
    uncamonkey

    uncamonkey Member

    Greeley CO
    Joined:
    Jun 2, 2009
    Messages:
    2,104
    You shouldn't need to, the reason for the return lines is to keep cooler fuel to the carb to prevent vapor lock.
    At least that is how I understand it.
     
    uncamonkey, Jan 6, 2014
    #2
  3. Jan 7, 2014
    timgr

    timgr We stand on the shoulders of giants. 2022 Sponsor

    Medford Mass USA
    Joined:
    Aug 10, 2003
    Messages:
    23,596
    Correct. No return line needed. The pressure regulator at 2 psi won't make any difference to the fuel pump - it will work the same as before.
     
    timgr, Jan 7, 2014
    #3
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