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Pump doesn't

Discussion in 'Early CJ5 and CJ6 Tech' started by 1960willyscj5, Aug 15, 2011.

  1. 1960willyscj5

    1960willyscj5 Well-Known Member

    My books are in boxes either in the garage of the house I am in the middle of moving out of or the 4th bedroom in the house I am moving into that I am using as a staging area.

    What is the pressure that the fuel pump puts out to the carb?mehh

    I think mine has seen it's last round-up. Quit cold on me almost exactly on the halfway mark between the two houses.
    The 50% humidity and the 105 in the non-existant shade probably don't help matters much, either.

    I am thinking on getting an electric pump to replace the mechanical one. Which has to be an aftermarket one, no vacuum pump on this one.
     
  2. PeteL

    PeteL If it wasn't for physics, and law enforcement... 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Standard for the F-134 was from 2.5 to 3.75 psi with engine running. One quart per minute. It may possibly be worth pulling the pump apart and checking for debris in the valves.

    A lot of people use an in-line regulator to assure pressure does not go any higher, to prevent carb flooding on rough ground.

    Why go electric? Pressure-only mechanical pumps are available.
     
  3. EricM

    EricM Active Member

    x2

    I'd replace the mechanical pump. I put an electric pump in series with the mechanical pump. I mounted it close to the fuel tank with a switch so I can fill the fuel bowl if it's been sitting for a while, or to get rid of vapor lock, or in case of a mechanical fuel pump failure.
     
  4. 1960willyscj5

    1960willyscj5 Well-Known Member

    Got no flow at all from the pump. And the mechanicals are not readily available in my area. I need it right away and can get the electric model at any of the FLAPS around.