John E.B. Rawton Posted April 19, 2019 Share Posted April 19, 2019 I have this used TTN. Last Saturday I was shooting, using brass shells and WLP primers. I had random misfires on the right hammer side. While I was cleaning, I found the right pin was short compared to the left so I ordered slixpins and read that I might need to trim springs. ~ Has anyone done this? ~ Will a standard socket loosen the assembly? Link to comment Share on other sites More sharing options...
Beartrap SASS#57175 Posted April 19, 2019 Share Posted April 19, 2019 You'll need a thin wall 8mm socket. You can grind a std 8mm to thinwall. You'll probably have to remove the hammer, same 8mm, to get to the firing pin nut. Link to comment Share on other sites More sharing options...
Warden Callaway Posted April 19, 2019 Share Posted April 19, 2019 I think this one is 5/16". I probably made it up for my Colt 1878s. Link to comment Share on other sites More sharing options...
Thunder Creek Kid Posted April 19, 2019 Share Posted April 19, 2019 Ditto on the socket. I did not have to do anything to my springs. Link to comment Share on other sites More sharing options...
Matthew Duncan Posted April 19, 2019 Share Posted April 19, 2019 Think I used a boxed in wrench to tighten my TTN hammer pin nuts. Link to comment Share on other sites More sharing options...
Garrison Joe, SASS #60708 Posted April 20, 2019 Share Posted April 20, 2019 I also use an 8MM socket that I have ground to thin the walls so as to fit in the firing pin recesses. The retaining nut is also slightly tapered on the faces, so the root of each face is slightly larger than the tip. You may have to make a kerf cut with a fine hackblade to get a firm grasp on the nut, slicing perhaps 1/4 of the way from the opening on the socket towards the square drive end. One of my TTN's recently starting hanging (sticking) the firing pin in the fired primer. Thus preventing opening the action until I bounced the gun on the recoil plate hard. I had to install firmer springs than the factory installed, and now have reliable operation. Good luck, GJ Link to comment Share on other sites More sharing options...
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