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  1. Mattguy

    Injection pump won't move when turning crank.

    Completely clogged. Can't blow through either sides.
  2. Mattguy

    Injection pump won't move when turning crank.

    I just tried sucking on the fuel supply side of the fuel pump with extra piece of hose and can't pull anything. So it must be the check valves or the sock in the tank. Do I have to drop the tank to get to the sock or can I get to it from the access cover?
  3. Mattguy

    Injection pump won't move when turning crank.

    I pulled line off fuel filter and dry. So I just pulled hose off fuel pump and am going to see if I can pull fuel to there with a separate piece of hose with barbed connector. If I can't pull fuel then it would be check valve or sock I believe.
  4. Mattguy

    Injection pump won't move when turning crank.

    I put a new filter in but maybe it got clogged from all the crap diesel that was still in the line. I'll pull fuel filter. It's new. And I sonic cleaned the strainer.
  5. Mattguy

    Injection pump won't move when turning crank.

    No, didn't look in tank, becausewhen I drained the 2 gallons of fuel that was in the tank it was clean fuel. I burned it in my torpedo heater. I was thinking maybe the sock is clogged. If check valves are clean that will be my next step. It's starving for fuel.
  6. Mattguy

    Injection pump won't move when turning crank.

    Found them. Which one is supply?
  7. Mattguy

    Injection pump won't move when turning crank.

    It's a 2003 m1123. I'm looking for diagrams of fuel system. It does have a mechanical fuel pump. Can check valves be accessed from plate above tank? Or do I have to drop tank?
  8. Mattguy

    Injection pump won't move when turning crank.

    After running if I open fuel filter bleed I hear a vacuum sound like it's sucking air.
  9. Mattguy

    Injection pump won't move when turning crank.

    The return check valves or the ones leading to fuel pump?
  10. Mattguy

    Injection pump won't move when turning crank.

    If I blow into injection pump return line there's a lot of resistance and then I can hear bubbles in the tank. Should it be easy to blow in the return line?
  11. Mattguy

    Injection pump won't move when turning crank.

    Part of the problems were the two connectors on ip pump not making contact. They must have gotten bent when pulled. Now running for 30secs and then dying. I put 5 gallons of diesel in it, I'm wondering if it's not enough.
  12. Mattguy

    Injection pump won't move when turning crank.

    Back together! Starts but only runs for a few seconds, sometimes will run for 15 secs and dies. I purged air from fuel filter, and even tried compressed air in tank and it would help. Are there check valves that need to get removed?
  13. Mattguy

    Injection pump won't move when turning crank.

    If it's assembled together it wont get past the fan blades.
  14. Mattguy

    Injection pump won't move when turning crank.

    Injection pump installed. Two new lines. Now to try and scrap this old gasket off manifold.
  15. Mattguy

    Injection pump won't move when turning crank.

    Whoever designed this radiator shroud should be taken out back. Impossible to get drivers side screws in.
  16. Mattguy

    Got my M1123

    Nice truck! Just ordered my water fording exhaust. Looks sweet.
  17. Mattguy

    Injection pump won't move when turning crank.

    Some reason can't see it, weird. I'm done for the night. I'm beat lol
  18. Mattguy

    Injection pump won't move when turning crank.

    How many miles on yours? You have link for auction?
  19. Mattguy

    Injection pump won't move when turning crank.

    It's getting flushed as soon as I can let it run for a while at operating temps!
  20. Mattguy

    Injection pump won't move when turning crank.

    Thank you for all the support. I'll continuing uploading pictures as I go and make sure I get a video of the first start. Cross my fingers. I'm still looking for a diagram of the back of the IP and how the lines connect to it I didn't keep track.
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