58 Hammer Rubbing

[warbucks16]

I need some information on how to repair a Hammer Problem on a Uberti New Army 1858 .44 Caliber with a Kirst Konverter.

When I fire it the hammer strikes the left side of the frame before hitting the firing pin.

Frequently when it let it down from full cock without letting it fire, the hammer hangs up on the left frame side and has to be pushed all the way down by hand.

Is there some repair I can make using a shim or some abjustment to correct this. The main Spring is the original Uberti Spring and is very strong and appears to be centered under the hammer and in the grip cutout.

The revolver is relatively new with less than fifty rounds fired but has been stored for several months. I do not recall this problem before I put it away.

I would appreciate any advice,

Thanks.

Warbucks16

[Major 2]

down near the bottom of the grip look for small screw it is the main spring tention screw.
turn it counter clockwise 1/2 a turn

It should take some tention off the screw if 1/2 does not change the rub try 3/4 turn.
if that does not work then it's internal.

[Flint]

The problem I've found (worse in an older Pirtta)  is the hole in the hammer is too much larger than the pivot screw, allowing too much wiggle room.  The pressure from the bolt wing against the cam side of the hammer tumbler is below the pivot, which tilts the hammer top to the left. If the frame slot clearance allows, a shim washer on the left side can set the hammer further to  the right.

I made a few screws on the lathe with a larger shank to fill the hammer's hole better.  If necessary, the hammer could be bushed.  You can also lighten the tension on the bolt wing by squeezing it a bit, but don't go less than parallel.  Also note that insufficient tension on the bolt wing can cause early bolt drop, creating the cylinder ring.

[Raven]

The other thing you should check is if the nose of the hammer (the part that strikes the nipple/firing pin) is mushroomed. This is a very common problem.

Just stone the sides flat.

Raven

[warbucks16]

Thanks to all for the advice.

Got her fixed, the wings and bottom of the bolt where the screw goes thru was so wide I had a heck of a time getting it out of the frame, had to pull it out with a needle nose pliar.

Squeezed them down, lubicated and it now works fine,

Hammer now seems to be dead on.

Again thank you for the advice.

Warbucks16