Poor Engagement of Cylinder Stop

[phatmax]

Hi All!

I need some assistance. My Snubby Model 10 has a single cylinder that the cylinder stop does not function properly.

5 other stops all lock up tight. One clicks into place but then you can spin the cylinder out of battery.

The cylinder stop seems to be in good shape, compared to all my other Smiths. The seat on the cylinder side appears to be cut right.

I think that it is not seating all the way, and not engaging the flat part of the cylinder stop seat.

I will try to use a micrometer on the seats and see if there is a difference in the cuts. If there is, what can I use to rasp out a little bit of metal on the cylinder, but also keep it square for proper engagement?

If the seats are all the same, does the cylinder stop need to be stoned and trued? Will that loosen the other cylinders when they are locked?

Any other ideas are welcomed!
I think that covers my questions.... Thank you!

 

[armorer951]

Check the offending stop slot with a magnifier to see if it is clean, and has no obvious defects. Before modifying or changing anything, I would try installing a new cylinder stop spring.

 

[chief38]

If it functions correctly on the other 5 notches, I would suspect that the problem one has a burr or is slightly undersized. I would look at it under a magnifying lamp and would address the faulty one and not make the stop itself thinner or you will make the other 5 slots sloppy. An ID capable Set of Dial Calipers would be a great help.

If you determine that there is a burr or the 6th notch needs to be slightly widened, I would use a miniature file set to correct the problem but definitely NOT a motorized tool like a Dremel.

Make sure BEFORE you do anything that the Ejector Rod is not bent and that the CS spring is in correctly. A new spring wouldn't hurt either although they rarely just go bad by themselves. I have seen some Bubba's bend the heck out of them attempting to fit them back into place!

 

[flintsghost]

That will often occur when the carry up is not quite right on the offending cylinder. Try checking that by very slowly SA cocking of the hammer for that cylinder and see if the cylinder has made it far enough for the stop to totally engage or if you have to turn it a small amount for it to engage. If the carry up is fine, then mark the notch with a erasable marker and remove the cylinder and disassemble and remove the stop. With both out, check to see if the notch is totally engaged by the stop when you manually set it in the notch. The fact that it engages on 5 and is only loosely engaged on the 6th makes me suspect carry up which could mean replacement of the hand with an oversize version or merely a touch on the ratchet with a fine file (if it is over rotating slightly)....best done by a certified armorer if you have one close by.