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Loosening Up A Sticky Roto-Breech

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    Loosening Up A Sticky Roto-Breech

    Any tips on how to do this? I put a drop of Tri-Flow on each side and moved it back and forth about a hundred times and it's still stickier than I would like. Do I have a choice other than trying to drive out the retention rod so I can clean and polish the contact surfaces?
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    #2
    Solution!

    Step 1: Ignore the timestamps that show how impatient I am (Though this wasn't the first time I tried to loosen this up).
    Step 2: Watch youtube for 20 minutes while flipping the breech around an obnoxious number of times. While doing this, swab up the nasty crap that works its way out and re-apply Tri-Flow as needed.
    Step 3: Enjoy smooth roto-breech action.

    The worst part of the sticky must have been really close to the middle, because it took a lot of cycling, and then loosened up all at once.
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      #3
      Remove the rods, it’ll be worth it in the long run. Hint - don’t lose the grub screws as they’re a thread not easily found...4BA. I’ve had to order some from the mother land.

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        #4
        Originally posted by Roger7pball View Post
        Remove the rods, it’ll be worth it in the long run. Hint - don’t lose the grub screws as they’re a thread not easily found...4BA. I’ve had to order some from the mother land.
        I tried to push the rod out and was met with a lot of resistance. From looking around on the forum it seems they often have to be removed with the body in soft jaws and tap them out with a hammer? That seems crappy....

        I guess I'll prep for it by putting a little lubricant on the ends of the rods under the grub screws, closing it back up, and letting it soak until I get around to it.
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          #5
          Originally posted by boarder2k7 View Post

          I tried to push the rod out and was met with a lot of resistance. From looking around on the forum it seems they often have to be removed with the body in soft jaws and tap them out with a hammer? That seems crappy....

          I guess I'll prep for it by putting a little lubricant on the ends of the rods under the grub screws, closing it back up, and letting it soak until I get around to it.
          They don't push out, you'll need to pull them... there's a great YouTube video on it somewhere.
          And God turned to Gabriel and said: “I shall create a land called Canada of outstanding natural beauty, with majestic mountains soaring with eagles, sparkling lakes abundant with bass and trout, forests full of elk and moose, and rivers stocked with salmon. I shall make the land rich in oil so the inhabitants prosper and call them Canadians, and they shall be praised as the friendliest of all people.”

          “But Lord,” asked Gabriel, “Is this not too generous to these Canadians?”

          And God replied, “Just wait and see the neighbors I shall inflict upon them."

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            #6
            Originally posted by boarder2k7 View Post

            I tried to push the rod out and was met with a lot of resistance. From looking around on the forum it seems they often have to be removed with the body in soft jaws and tap them out with a hammer? That seems crappy....

            I guess I'll prep for it by putting a little lubricant on the ends of the rods under the grub screws, closing it back up, and letting it soak until I get around to it.
            As Jordan said there's videos of it on Youtube. You'll need an M2 screw to thread in the ends of the rod after removing the grub screws. I use needle nose pliers pressed against the handle of another set of pliers. That way I can get leverage on pulling on the M2 screw while avoiding any damage to the Angel's body.

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              #7
              And then in 1 extreme case had to use a war hammer. This was on an Angel that must have slept in a puddle for 20 years.

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                #8
                Originally posted by Roger7pball View Post

                As Jordan said there's videos of it on Youtube. You'll need an M2 screw to thread in the ends of the rod after removing the grub screws. I use needle nose pliers pressed against the handle of another set of pliers. That way I can get leverage on pulling on the M2 screw while avoiding any damage to the Angel's body.
                So you need to drive an M2 screw in the front of the gun to start pushing the rod out, then grab and pull? I searched around and didn't find a youtube on it, but I probably just don't know the right search terms.
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                  #9
                  The breech rod down the driver’s side is 2 rods. The front one pulls out the front and the rear out the back. After removing the 2 set screws circles below.

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                    #10
                    Wait, the end of the rod has an M2 female thread in it used to pull it out?? What an unnecessarily difficult design when the rod could have just been drilled all the way through...
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                      #11
                      Originally posted by boarder2k7 View Post
                      Wait, the end of the rod has an M2 female thread in it used to pull it out?? What an unnecessarily difficult design when the rod could have just been drilled all the way through...
                      Yep

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                        #12
                        Drilling long holes with a large Length/diameter ratio is wayyyyy harder than you'd think!

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                          #13
                          Originally posted by boarder2k7 View Post
                          Wait, the end of the rod has an M2 female thread in it used to pull it out?? What an unnecessarily difficult design when the rod could have just been drilled all the way through...
                          "Made in the UK" and "unnecessarily difficult design" often go hand in hand.
                          And God turned to Gabriel and said: “I shall create a land called Canada of outstanding natural beauty, with majestic mountains soaring with eagles, sparkling lakes abundant with bass and trout, forests full of elk and moose, and rivers stocked with salmon. I shall make the land rich in oil so the inhabitants prosper and call them Canadians, and they shall be praised as the friendliest of all people.”

                          “But Lord,” asked Gabriel, “Is this not too generous to these Canadians?”

                          And God replied, “Just wait and see the neighbors I shall inflict upon them."

                          Comment


                          • lew
                            lew commented
                            Editing a comment
                            Don't let the smoke out.

                          • Jordan

                            Jordan

                            commented
                            Editing a comment
                            Why do Brits drink their beer warm? 'Cause Lucas makes their refrigerators.

                          • Knuckle Dragger

                            Knuckle Dragger

                            commented
                            Editing a comment
                            My dad always told that Lucas joke.

                          #14
                          Originally posted by russc View Post
                          Drilling long holes with a large Length/diameter ratio is wayyyyy harder than you'd think!
                          The holes drilled through the body are already as long as or longer than the hole that would be through the breech. Instead they just drilled in a little bit on both ends. I guess it saved them one longer hole in exchange for the two short ones, but it's definitely more awkward. I think putting tiny threads in the end of a rod is just as difficult as drilling that extra inch through the breech, but then I am only a hobby machinist so who knows.

                          Originally posted by Jordan View Post

                          "Made in the UK" and "unnecessarily difficult design" often go hand in hand.
                          😅
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                            #15
                            It being 2 rods allow you to control the forward and aft position of the breech. You can get both seams to be the same.

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