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    I have a Snyder's leakless water pump-the sealed unit. Long story short-I boogered up the threads at the tip of the shaft. I wanted to remove the fan blade & pulley(2 bladed alum) as I needed to grind down the end of the housing a little more for clearance reasons. I used the fan removal tool. When i smacked it with the hammer it wasn't square and messed up the threads on the very end of the shaft. The castle nut will start, but i don't want to force it and strip the rest of the threads. What size die do i need to clean up the threads on the end of the shaft?
    Last edited by smittykid; 09-21-2017, 05:58 AM.

  • #2
    7/16 x 20, but I would use a thread reformer to push the threads back into place, rather than a die that cuts away your good metal.

    Comment


    • #3
      What Tom said

      I have this universal / adjustable thread cutter that i would use on things like this.. The tool gets installed on the good threads and then you walk it off gently which will clean up the damagaed top portion...
      You do not have permission to view this gallery.
      This gallery has 2 photos.
      3 ~ Tudor's
      Henry Ford said
      "It's all nuts and bolts"


      Mitch's Auto Service ctr

      Comment


      • #4
        that's cool, Mitch, never saw that before. where do you get it?

        Comment


      • #5
        Get a grade 8 nut, cut it to, put it around the good threads, install a 6 point socket and back it off. If the socket doesn't fit my son used vice grips on a rear axle and saved the axle :-)
        Yes Mitch in half like two crescent moons! I should have been more clear, l know what I meant, hard for me to explain :-(
        Last edited by Big hammer; 09-21-2017, 12:34 PM. Reason: Addition- to make more plain

        Comment


        • Mitch
          Mitch commented
          Editing a comment
          cut it in half?

      • #6
        Originally posted by Big hammer View Post
        Get a grade 8 nut, cut it to, put it around the good threads, install a 6 point socket and back it off. If the socket doesn't fit my son used vice grips on a rear axle and saved the axle :-)
        Good tip, and I'll give it a try on a bad water pump shaft I have.
        Use some oil on the threads, and clamp on a curved jaw Vice Grip.

        Comment


        • #7
          NES NES1A Universal External Thread Repair tool.

          You can find it on Amazon: https://www.amazon.com/NES1A-Univers.../dp/B00D8WJ1FC
          Last edited by Boston Bruce; 09-21-2017, 12:04 PM.

          Comment


          • #8
            I have one of these old Blue Point thread chasers.
            bpastc1.jpg

            Comment


            • BudP
              BudP commented
              Editing a comment
              Don Turley sells this tool. I bought one from him years ago and used it to save the threads on a rear axle. http://www.donturley.com

          • #9
            I bought a thread file from NAPA-around $20 w/tax. After working the thread on the shaft with the thread file and a small needle file I got her squared away. I was still having trouble starting the castle nut that came with the water pump. I must have boogered up the nut, too. I took an old castle nut and it started just fine and life is good. The new castle nut has found a home in the trash can. Thanks guys for all your help!

            Comment


            • #10
              Originally posted by smittykid View Post
              I bought a thread file from NAPA-around $20 w/tax. After working the thread on the shaft with the thread file and a small needle file I got her squared away. I was still having trouble starting the castle nut that came with the water pump. I must have boogered up the nut, too. I took an old castle nut and it started just fine and life is good. The new castle nut has found a home in the trash can. Thanks guys for all your help!
              You could run a tap down the front of the nut to clean the threads up. Always save nuts and bolts, "may need that someday".

              Comment

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