3406B fuel screw reset

Discussion in 'Peterbilt Forum' started by joey0921, May 1, 2020.

  1. joey0921

    joey0921 Bobtail Member

    Nov 7, 2018
    I have been messing around with my 3406B injection pump and ive been paranoid that I got off on the fuel screws. How do you go about starting over to make sure they are the same? Should the threads to both from the jam nut be the same of each other? It seems that one is sticking out farther then the other. Thank You.
    650cat425 Thanks this.
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