Fuel pump flow volume - NCRS Discussion Boards

Fuel pump flow volume

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • Richard K.
    Very Frequent User
    • April 1, 1988
    • 207

    Fuel pump flow volume

    I got my car started after a long time, and it sounded great. However, if I turned off the car, then came back later, the car wouldn't start without some starting fluid. Once started, it would run great at the higher cold idle until I kicked-off the cold-idle, where it would begin to stumble, then the engine would stall.
    I've confirmed that I have a powerful spark, so I feel that I have a problem with the fuel, or fuel delivery system.
    To begin the troubleshooting of this problem, I'd like to remove the fuel line at the carburetor, and crank the engine to see how much fuel flows into a container. The problem is that I've never done this before, and don't know how much fuel should flow from the fuel line and at what speed. The AMA spec sheet for the fuel pump states that the pump should show 7.5 -9.0psi at the carb, but they show no "flow rate" volume which could help determine what it should look like. I have no gauge to measure the psi.
    So, what I need to know is, visually, what should the fuel look like as it exits the fuel line. Should the width of the fuel stream be the width of a pencil, a string, or a hair, or? Should the fuel look like it's coming out of a spigot full-on, should it be a slower, steady flow, or?.
    Thanks for any help.
  • Harry S.
    Extremely Frequent Poster
    • July 31, 2002
    • 5258

    #2
    Re: Fuel pump flow volume

    Have a read....

    https://www.forums.ncrs.org/showthre...light=pressure


    Comment

    • Joseph L.
      Very Frequent User
      • July 26, 2012
      • 160

      #3
      Re: Fuel pump flow volume

      I used that pressure/ volume test on my 1957 and it was very easy. I got 4.5 psi and 15 seconds to fill a quart container (1 gpm).

      Joe

      Comment

      Working...

      Debug Information

      Searching...Please wait.
      An unexpected error was returned: 'Your submission could not be processed because you have logged in since the previous page was loaded.

      Please push the back button and reload the previous window.'
      An unexpected error was returned: 'Your submission could not be processed because the token has expired.

      Please push the back button and reload the previous window.'
      An internal error has occurred and the module cannot be displayed.
      There are no results that meet this criteria.
      Search Result for "|||"