colt banner

Author Topic: Bolt cam question.  (Read 506 times)

Offline Hewy

  • Hero Member
  • *****
  • Posts: 697
    • View Profile
Bolt cam question.
« on: November 26, 2017, 10:39:54 AM »
My unfired Pietta 1860 is getting ready to take to the range. I note there is a slight drag or hesitation
pulling hammer from 1/2 cock to full cocked. The cylinder locks up correctly.
The bolt width and cylinder slot are OK , meaning the bolt fully seats down in all 6 slots.
I have both the BP cylinder and a Thuer conversion. The drag seems to be more pronounced with the conversion
in place.
Taking it all apart, only shows a wear marking on forward portion of the
cam ramp. So appears bolt leg is not in full contact with the entire face of cam ramp.
I have not touched anything on the gun, only cleaned original factory oil out of it.
What should be my next step fix it ?
« Last Edit: November 26, 2017, 04:20:06 PM by Hewy »
Hewy
BETTER TO GETTIN than GETTIN GOT.

Offline Hewy

  • Hero Member
  • *****
  • Posts: 697
    • View Profile
Re: Bolt cam question.
« Reply #1 on: November 27, 2017, 11:08:10 AM »
Problem solved. Found a piece of metal flash on the inside of the frame hammer channel
 that extended a little over the hand opening . Apprently was dragging on the hand.
 Also I polished the cam ramp and corresponding bolt leg.
 Runs smooth now with both conversion and bp cylinders............you knew I could do it L@J
Hewy
BETTER TO GETTIN than GETTIN GOT.

Offline Hawg

  • Hero Member
  • *****
  • Posts: 1636
  • Newbie
    • View Profile
Re: Bolt cam question.
« Reply #2 on: November 27, 2017, 11:12:16 AM »
Sounds like you have a ridge in the hand chan..............Oh wait N/M.  (7+"
« Last Edit: November 27, 2017, 11:14:08 AM by Hawg »

Offline Hewy

  • Hero Member
  • *****
  • Posts: 697
    • View Profile
Re: Bolt cam question.
« Reply #3 on: November 27, 2017, 11:28:57 AM »
Could have been the...ridge or could have been the cam or bolt leg.
Sure helped when I put my eye specs on )lI
Hewy
BETTER TO GETTIN than GETTIN GOT.

Offline 99whip

  • Sr. Member
  • ****
  • Posts: 406
  • Newbie
    • View Profile
Re: Bolt cam question.
« Reply #4 on: November 27, 2017, 12:16:05 PM »
Hewy,

Nice work.

I got a used Uberti a number of months ago, tore it down and inspected all the parts before cleaning and tuning.  Found about a 1/4" long piece of material smashed flat in the hammer slot, still attached right where the hand channel disappears up into the frame.   It wasn't causing issues like yours, but nonetheless, it was there for 30 years until I broke it off and filed it smooth.

Whip

Offline Hewy

  • Hero Member
  • *****
  • Posts: 697
    • View Profile
Re: Bolt cam question.
« Reply #5 on: November 27, 2017, 12:43:12 PM »
Hey Whip,
You explained the  exccess material better than I.
This is the first Pietta I have, with so much flash. Must have been a late Friday production. L@.
Hewy
BETTER TO GETTIN than GETTIN GOT.