Mod 625-7 Not cocking

jgh4445 · #1 10-29-2012, 02:19 PM

Replaced the mainspring and rebound slide spring with a wolf spring kit. For purpose of everyone being on the same page, I'm calling the side of the rev with the thumb latch the "left Side", then there is the top side, the bottom side (upside down) and the right side ( the side plate side). When the revolver is turned on the left side, held upright or upside down, it cocks in single and double action just as it should, When turned on its right side, the hammer goes almost all of the way back, but stops just short of actually cocking. You can pull a bit harder and it will then cock, but there seems to be something that wants to stop the hammer from going all the way back. This only happens when it is on the right side. It has the same "sticky point", for lack of a better term, in either single or double action.The orientation of the pin inside the rebound spring doesn't seem to make a difference. Is it possible that I used a rebound slide spring that is too light? (12 lbs) Should I go heavier? Is it even possible that this is the problem?

Dump1567 · #2 10-29-2012, 02:27 PM

Just guessing, but is the arm that locks the cylinder release (rides in the frame and I believe it was part of the endurance upgrade) lined-up correctly with the trigger?

It's visible in this pic.

jgh4445 · #3 10-29-2012, 02:39 PM

I'll look again but I believe it is. Nothing looked misaligned and I could catch the rod you speak of with my fingernail, pull back on it and this would allow the gun to cock. It also slid rearward when the thumb latch was held back. Seemed to be working correctly.

jgh4445 · #4 10-29-2012, 09:18 PM

Took a look and everything seems to be where and as it should be. Forgot to mention, the first time the stoppage occurred was after we re-assembled and were testing for function. When it failed, we re-disassembled and tried cocking the handgun. It had no cylinder in it and no grips on it and the side plate was off. It would no cock all the way back on its right side. Now, after cleaning everything really well and putting a bit of oil on the rebound slide and spring, we still have intermittent failures to cock when it is on its right side, assembled or not. I'm perplexed.

chipking · #5 10-29-2012, 09:33 PM

Check to make sure the hand is fully down on the trigger. Sometimes in the disassembly / assembly process they will lift slightly and that can cause weird binding.
--- Chip King ---

jgh4445 · #6 10-29-2012, 10:02 PM

Thanks Chip I will.

GLV · #7 10-30-2012, 07:44 PM

Try it with original springs.

jgh4445 · #8 10-30-2012, 08:12 PM

Yep...We already put the original mainspring back in..and it still does it. Could be the rebound slide spring is too weak. I'll try with the original RS spring back in. This was part of the work we did. Replaced the rear sight with a WO one and replaced the front sight with a red ramp. This one belongs to my cousin. Mine is a 625-6 and I did the identical work on mine a few months ago with the identical parts and I've had no problem at all with mine. When he brings it back over, I'll switch out the other spring.

Philblack · #9 10-30-2012, 11:08 PM

I think that a too light rebound slide spring would prevent the trigger from going back to its rest position. But would not prevent the hammer from cocking (it would ease the push off, nevertheless).

Can't you lift the gun up above your head, side plate off, right side turned towards the floor, and have a better look at what it does when you try to cock the hammer ? Looking is better than guessing...

Phil

jgh4445 · #10 10-31-2012, 09:32 AM

Have done that several times. can't for the life of me see what is causing the binding...everything looks normal to me. Will try again though.