Replacement cup seal for rainmaker?

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  • TKcustoms
    Local Azodin Guy
    • Oct 2021
    • 121

    #1

    Replacement cup seal for rainmaker?

    Sorry for all the questions. I've managed to get the Rainmaker to catch and cycle. Im getting a leak down the barrel and it looks like the cup seal face is scratched and should get replaced. Are there any cupseal assemblies that are available currently that could replace it?
    I have azodin and spyder cupseals that are the same diameter and slightly longer in length. Would those work if i managed to remove the stem and thread the new cupseal on? Thank you for your time.
  • Jordan
    I. Am. Canadian. 🇨🇦
    • Jul 2020
    • 3508
    • Southern Ontario, Canada

    #2
    They should - I think the later RM cupseals are serviceable like that.

    Comment


    • TKcustoms
      TKcustoms commented
      Editing a comment
      I think my rm is the early model. Are the valve stem assemblies different between the two models or is it just that the early ones have loctie holding them together?

    • Jordan
      Jordan commented
      Editing a comment
      Yes, they're different.

      Got a picture of the cupseal?
  • TKcustoms
    Local Azodin Guy
    • Oct 2021
    • 121

    #3
    I figured i had nothing to lose and cut the old cupseal off . It was threaded with loctite. i tapped the azodin cupseal and put it in. The seal is better but i still have a small leak. Im guessing that the valve's surface is nicked and either needs to be refaced or sanded down.

    Comment

    • Jordan
      I. Am. Canadian. 🇨🇦
      • Jul 2020
      • 3508
      • Southern Ontario, Canada

      #4
      If either of the two orings around the valve body are nicked they can leak down the barrel - make sure they're also in good shape.

      If you need a new valve due to damage, I think I have a couple kicking around still.

      Comment

      • TKcustoms
        Local Azodin Guy
        • Oct 2021
        • 121

        #5
        Yea ill try replacing the valve orings again before trying anything else. Thank you for the offer i appreciate it.

        Comment

        • TKcustoms
          Local Azodin Guy
          • Oct 2021
          • 121

          #6
          I managed to reduce the leak by pinching an o-ring between the cupseal and valve stem and replacing 1 valve body o-ring. I only had 1 replacement valve oring, i have more coming in the mail eventually. Dumb question but what size is the valve body o-ring? I measured a -018 but im not 100% sure.

          Comment

          • Jordan
            I. Am. Canadian. 🇨🇦
            • Jul 2020
            • 3508
            • Southern Ontario, Canada

            #7
            Sounds about right.

            Comment

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