View Full Version : Fitting a replacement cylinder hand?

March 7, 2012, 08:03 AM
I'm replacing one on my Uberti London .36 cal.
The replacement is too long and won't cycle the cylinder aqll the way to battery.
When you remove material do you remove it from the "top" of the cylinder hand lug or do you need to remove it from the face also?
Any help will be greatlly appreciated!

March 7, 2012, 08:26 AM
The top.

March 7, 2012, 09:57 AM

March 7, 2012, 11:36 AM
If your hand was too long, wouldn't it cycle your cylinder to battery too soon, and lock into place, but wouldn't allow the hammer to come back to full cock? If it fully cocks and the cylinder isn't in place yet, I'd think the hand was too short. :confused:

Fingers McGee
March 7, 2012, 01:03 PM
Beagle is right. It's too short if the cylinder won't lock up at full cock, and too long if it locks up before going to full cock.

Doc Hoy
March 7, 2012, 01:47 PM
The cylinder will travel past battery. The hand being too long prevents the bolt from dropping off the cam and stopping the cylinder until after the cylinder is already past top dead center.

If you do need to shape the top of the hand I have had some luck smoothing up the action by doing a little curve on the top surface of the hand. This way, the cylinder ratchet is not having to deal with a sharp edge on the hand. It doesn't take much of a curve.

March 7, 2012, 05:40 PM
Thanks guys!
The cylinder pushes forward and won't rotate to battery and the hammer dosen't cock, only goes about 1/2 cock.
In comparing the replacement, the new hand looks about 1/64 longer but it's hard to measure due to the shape and the pin.
I'll try fileing the top off slowly and see what it gets me. I am anticipating several tear-downs to try to get it right.
My first real gunsmithing project...
I appreciate you guys advice!

March 7, 2012, 06:02 PM
It's not that hard to do but it does require a few tear downs to get right.

March 9, 2012, 02:23 AM
You can do it! I just did it myself for the first time. Was sort of intimidated by it thinking it was going to take a long time. Once I got going, I probably only tore it down 3, maybe 4 times at most. But, you do gotta go slow...little bits at a time.

March 9, 2012, 08:23 AM
Go to http://thefiringline.com/forums/showthread.php?t=473430 and check out post #17. With this technique the old hand that was worn down can be reused.