Valve not firing

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  • luke
    lukescustoms.com

    • Jan 2001
    • 8211

    #16
    When you put air to the marker can you hear the on/off (sear) set? If not increase the pressure at the x valve (rear velocity adjuster) until you do...

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    • cortexparasite
      All Systems Nominal
      • Dec 2014
      • 34

      #17
      Originally posted by luke View Post
      When you put air to the marker can you hear the on/off (sear) set? If not increase the pressure at the x valve (rear velocity adjuster) until you do...
      The only sound I hear is a soft "full auto" sound inside the grip frame.

      So I lowered my tank to 950.

      I got it shooting a bit, but it was at 380fps. I backed out the velocity adjuster and now it's not shooting at all.

      Still hear that same sound near the trigger, but nothing else. If I can figure it out, I'll post a video.

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      • luke
        lukescustoms.com

        • Jan 2001
        • 8211

        #18
        Turn it back up and chrono the marker around 290 or so...

        The venting at the T-Rex is normal, it's designed to do so.

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        • luke
          lukescustoms.com

          • Jan 2001
          • 8211

          #19
          I've only got about 20 minutes or so and I gotta leave...

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          • luke
            lukescustoms.com

            • Jan 2001
            • 8211

            #20
            If all else fails send it back to me and I'll have a look.

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            • cortexparasite
              All Systems Nominal
              • Dec 2014
              • 34

              #21
              Well Murphy hates me. My asa o ring blew and the fitting under the lpr started to leak. So I'm done with it for the day.

              I have 950psi air now though, so I can work on it at home.

              I'll Redo the fittings and asa and check it over again.

              If I'm still having issues I'm fine with sending it back to you. I'm far enough into this project I will do anything to get it to work and have that "legendary" Mag reliability haha

              Thanks a bunch for your help, it reassures me I've made a good investment in mags.

              And I want mags to work out for me because I'm excited for the new Nummech parts!

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              • Patron God of Pirates
                ~pgop1.0
                • Apr 2002
                • 1196

                #22
                There is no need to run a SHP with a pneumag. The point of the SHP is to increase the reactivity which is eliminated with the pneumag mod.

                Comment

                • cortexparasite
                  All Systems Nominal
                  • Dec 2014
                  • 34

                  #23
                  Originally posted by Patron God of Pirates View Post
                  There is no need to run a SHP with a pneumag. The point of the SHP is to increase the reactivity which is eliminated with the pneumag mod.
                  I lowered it to 950 as Luke said. I have a regular tank setup for autocockers that I could try. I think it's at 650.

                  All my others are low pressure for electros.

                  Comment

                  • luke
                    lukescustoms.com

                    • Jan 2001
                    • 8211

                    #24
                    Originally posted by cortexparasite View Post
                    I lowered it to 950 as Luke said. I have a regular tank setup for autocockers that I could try. I think it's at 650.

                    All my others are low pressure for electros.
                    650 is too low, I like 925 psi

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