Walker Trigger Question

[Bullwinkle]

I've had an Uberti Walker for several years now and did a complete disassembly
on it. My son reassembled it using an exploded diagram....he's better than me on that! So , now that it's all put back together, if we do a "lazy" i.e. slow trigger pull, the hammer locks into the half cock position. But if we do a quick pull, the hammer comes down on the cap as it should and the cylinder rotates OK.

Is this normal? I don't recall it being like that before. Any suggestions? Thanks in advance.

 

[rcmodel]

No, that is not normal.

And I doubt taking it apart & putting it back together caused it.

Did you do any stoning or polishing to the trigger tip or hammer notch to 'improve' the trigger pull while you had it apart?

rc

 

[Bullwinkle]

It was working fine at the range before we took it apart. The only thing I did after disassembly was to give all of the parts a good hot water/soap cleaning
followed by coating with Ballistol.

 

[rcmodel]

Well, I don't know of a single thing that could suddenly cause that after just cleaning it and putting it back together.

But regardless, it sounds like the full cock hammer notch is too shallow and releasing before the trigger tip is far enough back to get out of the way of the half cock notch.

Only fix for that is a new hammer.

Or file enough off of the top / outside edge of the half-cock notch to clear the trigger tip on the way past it.

rc

 

[Malachi Leviticus Blue]

I just fixed a single shot pistol that had the same problem with the full cock position on the tumbler being worn down so far it would drop on half cock with an easy squeeze. It wasn't an easy to find part so I filed down the half cock and re cut it. Now I just need harden the tumbler so it lasts a while.

An Uberti hammer should not be hard to find so just replacing it might be a better choice. It will be easier in any event.

 

[rcmodel]

Uberti Walker parts.

http://www.vtigunparts.com/store/shopdisplayproducts.asp?id=8&cat=Uberti+1847+Walker

rc

 

[44 Dave]

If all you do is take a little off and don't have to "re-cut" the 1/2 cock you won't need to harden anything. Don't get carried away you may only have to take off a touch.

 

[rcmodel]

+1

The outer surface of the half cock notch never touches anything during normal operation or use of it.

So there is no wear point on or in it..
And no need to harden it.

Old Colt hammers are softer then hot butter in that location.

They need to be ductile to keep from breaking.

Not hard & brittle.
The 'tumbler' mentioned in post #5 is a different part, serving a different purpose.
It contains the full & safety cock notches same as your Walker hammer.

But even then, the half cock notch doesn't need to be glass hard.
And shouldn't be glass hard.

rc

 

[Malachi Leviticus Blue]

If the Walker has been working fine for several years now and now is dropping to half cock, then I would suspect the cause of the problem being wear at the full cock "notch"area. That is the main point where I would be concerned about the hardness. If the surface hardening has worn though that area will continue to wear down faster.

Luckily a replacement Uberti hammer is not hard to find so even if you totally mess it up, or wear it out, all is far from lost.