Update...
Traditions sent me a replacement Trigger Bolt Spring (#19) (which was broken). Today, I pulled Andy's gun apart and replaced the spring. The adventure continues. Exploded view included for reference.
Upon reassembling the gun, initially, when cocked, the trigger was not setting against the sear, but the cylinder would rotate and the hammer would drop under spring tension as soon as you'd let go of the hammer. That seemed to correct itself very quickly and then would cock the hammer if the gun were levelled as if firing. If it was laid over on it's side (gangsta style) while cocking, it wouldn't remain cocked and locked. Same was true if barrel oriented downward and upward. That appeared to have worked itself back to normal with some more cycling of the hammer.
Here's where the gun stands at present...
- Cock the gun with barrel oriented upward and it overrotates the cylinder's timing by about 1/3 of the hammer's width. Pull the trigger and the cylinder back peddles itself one complete chamber cycle (to the same 1/3 hammer width over-rotation). The bolt (#12) does not move upward and engage the cylinder... at all.
- Cock the gun with the barrel oriented: downward, level, and laid over (gangsta style) and the only change is, the cylinder does not back peddle as it does if oriented upward. The over rotation remains the same and the bolt does not engage the cylinder.
- I tried varying the tension of the hold down screw (#33) for the Trigger Bolt Spring. If good and snug, the cylinder over-rotates the cylinder to one half of the hammer's width. As I loosened the hold down screw to the point of no longer being able to hear the clicks while cocking... it corrected it only to the point of being 1/3 of the hammer's width of over-rotation. Snugging it down until I can hear the clicks again, but not as snug as before... it remains at the 1/3 width of the hammer's over-rotation.
If I VERY softly cock the gun, the cylinder rotates into the properly timed location... but, the bolt does not move up and engage the cylinder.
The hand (#7) seems to engage and rotate the cylinder just fine... but, if the barrel is oriented upward... the hand appears to be pulling the "back peddle" affect to the cylinder since the bolt is not moving upward to engage the cylinder. I would suspect that the end play present of the cylinder moving on the base pin (#21) is causing the hand to back peddle the cylinder as the hand retracts... thanks to gravity pulling the cylinder against the hand.
With the barrel assembly off and the cylinder off the base pin... cocking the hammer and pulling trigger... I feel some very definate staging and creep in the trigger before it breaks from the sear.
History... this gun was acquired by my friend Andy "used". He accepted it in trade for some of his talents with leatherwork. He has never fired the gun. When I pulled the gun apart initially to inspect it... I found it gunked up with powder sludge and gun oil. The Trigger Bolt Spring was broken when I opened it up... and the portion of it that had broken off was nowhere to be found inside. The hold down screw was buggered up. So... it would appear my friend received a buggered up gun as the payment for his time. The long/straight portion of the Trigger Bolt Spring (which works with the trigger) is the portion of it that was missing. The replacement Spring I received from Traditions has a bit more arc to the portion that is like the remaining part (which operates the bolt) of the original spring. The new one is also just a hair wider than the shorter portion of the original (which operates the bolt).
The only thing I haven't cleaned (yet) are the nipples. I didn't have a nipple wrench intially... but, I do now. So... I know I'll be working with a clean/oiled action as this little adventure progresses.
His Jaegerness has been kind enough to volunteer to walk me through the troubleshooting/repair phases.
Now... we'll see if I can follow directions.
And, the good news... I get to practice on/learn on someone else's gun.
WITH the owner's knowledge/permission. Cracking it open to clean the action was way beyond his comfort zone, so, he's happy to get some help.
As a side note... this Pietta 1860 has some very nice CCH on the frame, and will accept the carbine stock. The grips are a nicely grained matte finish to the walnut.