Afternoon Gents,
I have this 1951 vintage Pre M27 (shooter grade) on the healing bench. The complaint was Cylinder binding on the forcing cone so I suspected a bent ejector rod or sprung yoke or perhaps both were at fault.
When the revolver got here, sure enough I found about .015" runout in the ejector rod and the yoke sprung towards 3 o'clock by about .020". I straightened that stuff out and corrected some end shake in both the yoke and the cylinder. However all was not well.
I found the hand was skipping off the ratchet occasionally so I took a closer look and oh my
Note the ratchets at 12:00, 4:00 and 8:00 o'clock each have a substantial chunk of steel chipped off. Several smaller dings & divots noted elsewhere on the other ratchets.
While exploring options to get this gun back in operation the thought struck me... Let's see if the damaged areas can be built up. I have neither the equipment or skill to weld on something this tiny but I bet my friend Tony up at Micro Precision Welding can do it.
I marked up a blown up macro image of what I wanted built up with weldment and arranged to get the part sent off to Michigan
Several days later I got it back with all the buggered areas filled in.
I fixtured the thing upright in a small V-block on the mill and shaved off the high spots. The weldments were pretty hard so I had to use a carbide tool.
After no small amount of tedious filing and checking with a tiny 2cut barrette needle file, I think were done. Hand is not skipping ratchets nor dragging on trigger return. Carry up is good as is chargehole alignment. I do believe I'll be sending this one home next week.
Tony up there at Micro Precision Welding has done several jobs for me in the past, namely welding tiny stuff that's not in my wheelhouse, and has without fail provided superior work so I thought I'd throw out a plug for him here.
Cheers
Bill
I have this 1951 vintage Pre M27 (shooter grade) on the healing bench. The complaint was Cylinder binding on the forcing cone so I suspected a bent ejector rod or sprung yoke or perhaps both were at fault.
When the revolver got here, sure enough I found about .015" runout in the ejector rod and the yoke sprung towards 3 o'clock by about .020". I straightened that stuff out and corrected some end shake in both the yoke and the cylinder. However all was not well.
I found the hand was skipping off the ratchet occasionally so I took a closer look and oh my
Note the ratchets at 12:00, 4:00 and 8:00 o'clock each have a substantial chunk of steel chipped off. Several smaller dings & divots noted elsewhere on the other ratchets.
While exploring options to get this gun back in operation the thought struck me... Let's see if the damaged areas can be built up. I have neither the equipment or skill to weld on something this tiny but I bet my friend Tony up at Micro Precision Welding can do it.
I marked up a blown up macro image of what I wanted built up with weldment and arranged to get the part sent off to Michigan
Several days later I got it back with all the buggered areas filled in.
I fixtured the thing upright in a small V-block on the mill and shaved off the high spots. The weldments were pretty hard so I had to use a carbide tool.
After no small amount of tedious filing and checking with a tiny 2cut barrette needle file, I think were done. Hand is not skipping ratchets nor dragging on trigger return. Carry up is good as is chargehole alignment. I do believe I'll be sending this one home next week.
Tony up there at Micro Precision Welding has done several jobs for me in the past, namely welding tiny stuff that's not in my wheelhouse, and has without fail provided superior work so I thought I'd throw out a plug for him here.
Cheers
Bill
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Were I to take a guess.... Well we know the cylinder was binding up against the forcing cone due the the bent ejector rod & sprung yoke so I imagine one could easily surmise that grabbing a BIG handfull of trigger to get that stuck cylinder moving might have been the cause. Those big chips look to be right in the line of force of the hand shoving against a cylinder that wont turn... And then the ratchet tooth gives way. Just guessing mind you
