Home Forums General Discussion Forum balance wheel freezes

  • This topic is empty.
Viewing 7 posts - 1 through 7 (of 7 total)
  • Author
    Posts
  • #49941
    jdp020351
    Participant

      Good evening group;

      I recently purchase a 18s ASP pocket watch, gold filled. it ran great for a few weeks and has stopped running. i have not taken the watch apart yet to see what it might be. however when i removed the back i noticed that the balance wheel has great amplitude. The hair spring is in great condition. it appears to go faster and suddenly freezes (stops) dead. it does not slow down than stops but suddenly freezes. when touched, it will run than freeze. any thing that i might look for when i break it down?

      thanking all in advance
      Jerry

      #64457
      dlgraley
      Participant

        Any possibility it’s intermittently making contact with the cock/bridge?

        #64458
        jdp020351
        Participant

          Thank You, I will check for that
          Jerry

          #64459
          randy
          Participant

            Hey Jerry
            Dlgraley is spot on.

            Just to add to his suggestion, see if it stops in only one position, Dial up or down, left or right, etc.
            Dial up and I you would prove out his assessment that it’s possibly riding on the balance cock.
            Dial down…maybe a cracked balance jewel.
            Any position and I would have to think that maybe it’s a bad wheel tooth that hangs it up..or possibly the banking pins are missing, or need to be closed in a bit.

            Lot’s of different possibilities

            Let us know if we can help in any way…

            #64460
            jdp020351
            Participant

              Hi Randy
              I was thinking, could it be over banking? the balance wheel locks up and I have to use my peg wood to release it.
              it does lock up in one position. (stem up and face tilted at 45 degrees) Broken jewel?
              I’m stripping it down today and inspecting it.
              I will let you know what I find.
              Thanks to every one for their help
              Jerry

              #64461
              randy
              Participant

                It could be either of those issues Jerry..or even another one you will run across !
                Before you strip it down, just remove the movement.
                Then while it’s running,..try your best to observe the balance as it runs in the various positions using a 4X or stronger loupe.
                Look for the hairspring to rub on the balance wheel or against the cock.

                You could have both issues going on at once..just try to isolate them one at a time

                Best

                Randy

                #64462
                jdp020351
                Participant

                  will do Randy
                  Thank You
                  Jerry

                Viewing 7 posts - 1 through 7 (of 7 total)
                • You must be logged in to reply to this topic.