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Post by Crowcifier6 on Jan 5, 2014 15:08:59 GMT -5
Hey guys, I have a recently acquired model 24 Series P 22lr over 20 ga. I am getting intermittent light strikes with the 20 ga firing pin. I have done my research, and before I go bending the main spring plunger head, it seems the 20 ga firing pin is awfully loose, as in floating in it's channel. The 22lr firing pin is stationary. Am I right in thinking that the spring behind the 20 ga firing is all pooed out? The only shells I have ran in it are Remington bird shot and sluggers. Both shells will occasionally fire after numerous strikes or fire right away. Any thoughts?
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Post by Crowcifier6 on Jan 7, 2014 19:07:53 GMT -5
Bumping this one, there's got to be someone here that can offer some insight.
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Post by cw on Jan 7, 2014 20:47:35 GMT -5
Hello,
I would look at the Numrich Arms site for parts and get some new springs. Swap them out problems should go away.
CW
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Post by Crowcifier6 on Jan 8, 2014 18:55:57 GMT -5
Thanks CW, appreciate the reply. I will give that a shot.
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Post by cas on Jan 9, 2014 14:27:06 GMT -5
You won't find one. The shotgun firing pin doesn't have a return spring. It's supposed to move in and freely.
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Post by Crowcifier6 on Jan 9, 2014 22:00:54 GMT -5
Right you are. I couldn't find one on Numrich this morning. That does not explain the schematic and part number for firing pin springs, plural. I'd really hate to bend or (probably in my case) damage any parts on this gun without knowing that is the real problem. Maybe just a new firing pin? I guess I will have to try. Looking at the the pin coming out of the channel from the side, it does seem to slope slightly downwards, as in not perfectly horizontal (channel wear?). Going to pull the pin this weekend and have a closer look.
Cas, can you shed any more light on this?
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Post by cas on Jan 10, 2014 15:00:47 GMT -5
I haven't spent any time on the light strike problem myself. Nor have ai really messed with the springs. I bought a 24c once that the main spring felt weak on. I bought what was supposed to be the right be from Gun Parts but was never able to get it in (too long and strong). I put the old one back in and never did have a problem. (Don't fix what ain't broken).
Most everyone I've heard from ended up fixing it by tweaking the strut. I have no first hand experience.
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Post by Crowcifier6 on Jan 11, 2014 17:14:00 GMT -5
So I just pulled the pin and everything seems like new. The length of the actual pin (minus thicker part where hammer strikes) is .284", and protrusion is .079". Forgive me, I am fairly new to gunsmithing, but I'm no bubba. Does anyone else have measurements of their 20 ga firing pin? I also cannot seem to locate a new firing pin on Numrich, but will put in an order for a new mainspring for sh*ts and giggles. Anyone have any advice for getting that little so-and-so out of the trigger group/receiver assembly? I was thinking of fabbing a small tool with a notch to pull back from either side of the spring.
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Post by Crowcifier6 on Jan 14, 2014 6:33:15 GMT -5
For people with the same problem in the future, here are detailed instructions for removing mainspring.
Make sure hammer is in dedcocked position to remove spring tension.
Remove buttstock.
Place receiver in a padded gunsmith or similar vice.
You can drift trigger pin & remove trigger and spring for additional clearance but it isn't absolutely neccessary but may as well do it & replace the trigger spring with a fresh one and clean and lubricate the area.
Use a flat blade driver or similar tool to rock and nudge the rear of the hammer spring assembly from its recess while maintaining control of the assembly.
It is still under some tension so it will go shooting off if you don't control it you may lose the rear assembly cap.
It may require a couple or three taps to free it from the receiver once you get it out of the recess and onto the frame shelf, a helper is helpful here.
The real fun isn't taking the spring out, it is putting the assembly back in place and this is true of most all coil spring hammer guns.
The long tab goes to the top front, push the assembly into place then use a long nose plier to grip and compress the spring a bit while guiding the rear cap back into the frame recess.
Best to have a helper hold the frame while doing this or place the receiver in that suggested padded vice.
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Post by Crowcifier6 on Jan 15, 2014 18:47:12 GMT -5
I seem to be having better luck with this problem on other forums. No one has a firing pin protrusion measurement? I guess I could bring it in to my gunsmith, but that would take all the fun out of it.
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Post by cw on Jan 15, 2014 20:16:54 GMT -5
I seem to be having better luck with this problem on other forums. No one has a firing pin protrusion measurement? I guess I could bring it in to my gunsmith, but that would take all the fun out of it. While I agree its a possibility, with the ''age'' of most of our guns finding one with improper length, this late in there lives, is not so likely. 
IMHO its the main spring as has been suggested since the third posting. Finding a new spring may not be as easy. If you could get the specks, having one made may be easier.
CW
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Post by Crowcifier6 on Jan 15, 2014 21:52:38 GMT -5
I seem to be having better luck with this problem on other forums. No one has a firing pin protrusion measurement? I guess I could bring it in to my gunsmith, but that would take all the fun out of it. While I agree its a possibility, with the ''age'' of most of our guns finding one with improper length, this late in there lives, is not so likely.
IMHO its the main spring as has been suggested since the third posting. Finding a new spring may not be as easy. If you could get the specks, having one made may be easier.
CW
I am just looking to see if my protrusion is adequate in comparison with functioning guns. I am waiting on parts (mainspring, firing pin) and am just frustrated, sorry everyone. |
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Post by cw on Jan 16, 2014 6:14:54 GMT -5
I can measure mine for you.... If I remember. . CW |
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Post by Crowcifier6 on Jan 17, 2014 6:36:24 GMT -5
I would really appreciate it.
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Post by Crowcifier6 on Jan 20, 2014 18:27:20 GMT -5
bump. Found a series P schematic on Numrich. Guess I wasn't searching with the right wording.....figures. Now I am sure I'm ordering the correct parts, and hopefully this will get to the bottom of this. Still looking for a firing pin measurement....
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