blow back/blow by

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  • originalspyderxtra
    Registered User
    • Jul 2006
    • 114

    #1

    blow back/blow by

    im wondering if this is a bit weird. when firing my mag i noticed i get alot of air comming through the feed tube. and i mean alot, it blew a piece of tissue paper about 4 feet into the air. i was wondering if its normal due to the inheit workings of the valve or thewre is something i can do about it, seems like im wasting alot of gas.
  • kevdupuis
    KNDE
    • May 2002
    • 1041

    #2
    That's normal for a mag, it's why the power feed was first invented, to prevent paint from bobbling.
    Flying the unfriendly skies.

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    • questionful
      LNIB
      • Dec 2006
      • 1416

      #3
      air coming out of the breach is normal, but depending on what you mean by "a lot", you might have a problem. Is your bolt lvl7 or lvl10?

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      • originalspyderxtra
        Registered User
        • Jul 2006
        • 114

        #4
        lvl 10, and compared to my old spyder its alot, putting my hand over it its rather strong. blows my hair around if i put my face over it.

        Comment

        • questionful
          LNIB
          • Dec 2006
          • 1416

          #5
          I think it's your lvl10. I don't know much about them, but I'm guessing that it is not tuned right.

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          • originalspyderxtra
            Registered User
            • Jul 2006
            • 114

            #6
            thnaks, i was thinking it may be the shims, except it doest fire right if it has less than 2 shims.

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