Loose arbor on 1860 Uberti

[montanatim]

I would like to ask how you (probably smarter then me) folks would fix/tighten a wobbly arbor?

The gun; 1860 steel frame Uberti  manufactured 1997.

Tried resetting the small arbor lock pin several times, no good.

Would like to hear how the masters would go about it?  Thank You

Would also like to ask why "The Open range forum" shut down?

[Pettifogger]

Drill out staking pin, unscrew arbor, thoroughly degrease arbor threads and frame threads.  Apply red loctite to threads and screw arbor back into frame, put on barrel and insert wedge to line everything up. After red loctite has dried put in new staking pin or drill and tap hole and insert an allen set screw.

[Gus Walker]

  You can also peen the thread end and tighten it up. Take out the arbor set the thread end on an anvil and hit the wedge end with a suitable hammer. The metal is realitively soft so a little dab will do ya. You may have to dress down the wedge end for it to fit in the arbor hole in the barrel as it will swell also. I have don this on a ASP 1860 and a brass frame 51 navy and they are back up and running like new.

[montanatim]

Thank You for the ideas/methods.

Who in the "know", knows why the Open range is now the closed range?

[Pettifogger]

Because Hedley quit running it.  He left it up so people can access the technical articles.

[Montana Slim]

Note that at manufacture, the arbor is threaded into the frame, and then a hole is drilled on the thread. A pin is then inserted and staked. Often an arbor becomes loose due to either an ill-fitting lock pin, or loose arbor locking pin. I've encountered pins which were so loose, they threaten to fall out. Two techniques I've used to correct the situation include:

1) Re-stake the existing locking pin, providing it appears to tighten-up the arbor.
2) Remove the locking pin drill and re-pin using the next larger size dowel pin. With the arbor installed, the drill will follow the existing hole. hint: Shorten the new dowel pin to the same length as the one removed before tapping it home. Next lightly stake (if needed). Although I really don't recall having to stake one of these replacements.

You've tried #1 without success, so you might consider #2.
Dowel pins are much better quality steel than the factory pins & are setup to give an intereference fit....and, Even poor quality, ill-fitting threads on the arbor or frame can be compensated for using this method.

I know some folks who thread the hole and use a setscrew, but it's very unlikely removal of the arbor will be a necessity over the life of the owner, or revolver. Using a dowel-pin makes it a rock solid assembly, which is way more important IMO.

BTW, dowel pins are used to hold most high-caliber weapons together and their parts precisely aligned...such as artillery and tank guns. Once in while they come in handy on these little guns, too.

Slim