629-1 ratchet curiosity...

[Inspector-Callahan]

Here's an interesting ratchet cut. I dry fired a bunch of times and detected that the trigger would only complete 4/5ths of it's stroke on ONE chamber (and this was interittently). I examined the hand and corresponding ratchet to find this interesting abnormality. The hand appears to be engaging this excess metal (on some intermittant occasions) instead of the ratchet face in the normal fashion. This appears to be why the trigger cannot complete its stroke because the cyl advances prematurely into the bolt/stop notch lockup point.

My non-professional eyes say this is a ratchet that wasn't completely milled away. Has anyone seen anything like this before?

Red is the bad ratchet, all others are good. Blue marker also references the bad ratchet.

IC

[chief38]

The lunch bell must have rung just as that Ratchet was being worked on.


I have not seen this exact problem, however I have seen Ratchets that were not properly cut or that have had bad burrs left on them and the timing was off. Most of the time a few strokes with a hard Arkansas stone corrects the problem. Just make sure not to go too far (only as far as necessary to get the timing correct) as you can not add metal back on.

Chief38

[USBP SW]

I see what you are talking about and I don't recall seeing anything like it before, although I haven't really looked. I can see where it could cause the problem you describe and I don't forsee any problem cleaning the metal off to where there is no area to falsely engage (I refer to the area on the face of the ratchet between the engagement points), I would not touch the true engagement portion of the ratchet. I hope this answers your question.

Good luck and let us know how it turns out,
Steve