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Cat 5EK fuel pressure?

Discussion in 'Trucks [ Eighteen Wheelers ]' started by TA63, Jan 21, 2011.

  1. Jan 21, 2011 #1
    TA63

    TA63 Bobtail Member

    48
    1
    Oct 28, 2010
    0
    What should a 1994 Cat 5EK engine run for fuel pressure? Also, this truck does not have a pressure gauge. Is there a port somewhere i can test the fuel pressure?
     
    TA63, Jan 21, 2011
    TA63, Jan 21, 2011
    #1
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  3. Jan 22, 2011 #2
    Krooser

    Krooser Road Train Member

    2,493
    1,066
    Jul 25, 2010
    Wisconsin
    0
    Mine runs a tad over 75 but bounces around a lot... I believe there is a fuel port on the filter housing...
     
    Krooser, Jan 22, 2011
    Krooser, Jan 22, 2011
    #2
  4. Jan 23, 2011 #3
    ROBSREDFORD

    ROBSREDFORD Light Load Member

    266
    139
    Sep 2, 2008
    MIDLAND, NC
    0
    port is on the filter housing, its a cap you remove it and screw in your gauge, I generally shim pump to achieve 110 to 115 psi at 1800 rpm.
     
    ROBSREDFORD, Jan 23, 2011
    ROBSREDFORD, Jan 23, 2011
    #3
  5. Jan 23, 2011 #4
    Rock hauler

    Rock hauler Light Load Member

    264
    54
    Nov 26, 2008
    Deridder La.
    0
    I think thats a 3/8 boss O-ring fitting
     
    Rock hauler, Jan 23, 2011
    Rock hauler, Jan 23, 2011
    #4
  7. Jan 23, 2011 #5
    Mr. Haney

    Mr. Haney Road Train Member

    2,693
    2,040
    Dec 17, 2008
    0
    The older 5EK's use a larger pump with more volume compared to the newer pumps. Most of them run at 65-75 psi while cruising down the road. Be careful playing with these pumps, you can very easily raise pressure over 150-200psi before you know it. If you install the wrong check valve, you can raise pressure dramatically also
     
    Mr. Haney, Jan 23, 2011
    Mr. Haney, Jan 23, 2011
    #5
  8. Jan 23, 2011 #6
    doublew

    doublew Light Load Member

    68
    7
    Oct 17, 2010
    Kansas
    0
    i have a 5ek and mine runs right at a 100 to 95 psi on a fresh filter and i will change it at when it drops to around 60psi
     
    doublew, Jan 23, 2011
    doublew, Jan 23, 2011
    #6
  9. Jan 9, 2012 #7
    Rig Wrench

    Rig Wrench Medium Load Member

    398
    66
    Dec 24, 2010
    northeast
    0
    Would there be an improvement then running a 5EK pump on a newer engine if they move more volume(and shimmed it for the correct pressure)?
     
    Rig Wrench, Jan 9, 2012
    Rig Wrench, Jan 9, 2012
    #7
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