SKS extractor pin problem

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rob350

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Having a problem, the pin that holds the extractor in is rotating up (as seen in the pic), causing the bolt to not want to pop up, causing the bolt carrier+bolt to not come bad.

I have 500 rounds through her, this problem just started.

If i cycle it while leaving it cocked it does not seem to rotate, but if I dry fire it between cycles the pin will rotate after 5 or so cycles.
So maybe the extra pressure that pushing the hammer back affects it some how, thats the only clue i can find.



IMG00119-20101228-1612.jpg
 
How is that firing pi installed?
Look's like it's upside down.
Also any chance we can get a look at your firing pin and the retain sperate?
 
Hmmm.. ruski or chinese. I think russian {i haven't had mine torn down yet} but my chinese firing pin is quite different....unless somehow the firing pin is installed on it's side??? How does this firing pin "float" with that retaining pin mated to that groove??? hang on I'll pull mine apart and see if i can help
 
How easy is it to install and remove the firing pin retainer? The pin relies on friction to hold it in place i.e. to not rotate. If you can simply drop it in or remove it with no force at all then the pin is worn out.
 
Brandon3 said:
How easy is it to install and remove the firing pin retainer? The pin relies on friction to hold it in place i.e. to not rotate. If you can simply drop it in or remove it with no force at all then the pin is worn out.
Click to expand...

Like he said^^ Mine requires a hammer and punch to remove. I'd replace it...
 
Brandon3 said:
How easy is it to install and remove the firing pin retainer? The pin relies on friction to hold it in place i.e. to not rotate. If you can simply drop it in or remove it with no force at all then the pin is worn out.
Click to expand...

Its not "loose" by no means, but i can use a light pair of pliers and a punch to tap it out.

I just tried dry firing the gun with ONLY the complete bolt in place, (no bolt carrier) and after the 6th or 7th time the hammer hits the firing pin i could notice the extractor pin pointing up again.

Is it at all possible that the firing pin is going a bit too far forward, thus the way the groves are cut the firing pin is touching the extractor pin causing the extractor pin to turn (remember the extractor pin has a flat side also that could be used as leverage)?

If not, would using some lock tight on the extractor pin be a good or bad idea?
 
Rob350;I just pulled both my chicom and izzy apart and though the firing pins are different from one another neither look like yours......there maybe different styles that are different than the two i have here.....but i'm thinking someone has adapted that pin of yours...i'm amazed it fired or didn't slam fire on you...the firing pin MUST float or rattle in the carrier.The firing pin should ride along the long flat side against the retaining pin. I think you should try a NEW firing pin.... loctite isn't for this application,you may make a bad situation worse if you use any bonding agent in the bolt. Someone else chime in or correct me but i think thats a chinese style pin in a russian bolt. russian pin triangular...chinese round w/4 flats machined in two top, two bottom of the firing pin.
 
The firing pin probably is going forward a little too far and it's doing so because the retaining pin is worn out. I would suggest you replace the retaining pin.
 
Last edited:
plinker 777 said:
Rob350; when the bolt is assembled you should be able to twist the firing pin clockways and counterclockways i'm going to estimate 15-25 degrees as well as back and forth, ie in and out,left and right. i'm going to bet you can't....right?
Click to expand...

The firing pin moves freely, no problems there. Its original from when i bought it from SFRC (site sponsor).



Brandon3 said:
The firing pin probably is going forward a little too far and it's doing so because the retaining pin is worn out. I would suggest you replace the retaing pin.
Click to expand...

I looked at it again and the firing pin going to far forward should not actually effect it as the end of the cut out area does not come close to hitting the extractor pin.


I have tried beating on the firing pin like the hammer does with the bolt face down on my desk, and the pin extractor pin does not move. But put it in the gun and the hammer turns it.... I dont get it
 
You pounding on the firing pin with a hammer on your desk does not replicate the same impact and force that occurs when firing the rifle. Also it doesn't replicate the forces involved in the bolt recoiling or moving into the locked position. From your posted pictures the firing pin looks fine to me and you have fired 500rds successfully. The only
piece that seems to be not working properly is the retaining pin and I would suggest you start by replacing that first.
 
rob350 said:
Installed as pictured, point forwards and the little separation for the pin is up.

IMG00120-20101228-1748.jpg


IMG00121-20101228-1748.jpg


IMG00122-20101228-1749.jpg
Click to expand...
Ya umm...
Your firing pin & retainer are not supposed to be installed like that. Contact SkSMan dot com for a new 1 or I think Lever Arms or Marstar should have some replacements. The place were the firing pin has the elevated side should be facing up. As for that notch out of your firing pin I have no idea how it got there but it's not suppose to be like that.
This video is for a yugo but all sks's that are non-spring loaded should be dis-assembled and re-assembled like this;
[youtube]9B7X4IItVoI[/youtube]
 
Satain said:
Ya umm...
Your firing pin & retainer are not supposed to be installed like that. Contact SkSMan dot com for a new 1 or I think Lever Arms or Marstar should have some replacements. The place were the firing pin has the elevated side should be facing up. As for that notch out of your firing pin I have no idea how it got there but it's not suppose to be like that.
This video is for a yugo but all sks's that are non-spring loaded should be dis-assembled and re-assembled like this;
Click to expand...


idk, it looks like the bottom one
SKS45028Small-1.jpg

-Type 1 Firing pin. Spring 1949 - part1951 (above right, top).
-Type 2 Firing pin. Non-spring/milled two sides Part1950 - part1953 (above right pic, middle).
-Type 3 Firing pin. Non-spring/milled three sides, part1953 - 1956 (above right pic, bottom).
Click to expand...

My SKS is a 55/56.



Either way, I compared my retainer pin to another Russian sks (it was a 52, so different firing pin) and both fit more loose in my bolt than in the other Russian bolt, so i doubt a new pin would fix it.

Im told I could have head spacing issues with a new bolt possibly requiring gun smithing work. This true?
Because of this, im leaning towards trying some lock tight or the likes. Maybe also putting some punch mark in the bolt to protrude material into the hole on the left side, and on the right side do the same of the actual shaft of the retaining pin. Will have to run this past a machinist.
 
rob350 said:
Either way, I compared my retainer pin to another Russian sks (it was a 52, so different firing pin) and both fit more loose in my bolt than in the other Russian bolt, so i doubt a new pin would fix it.

Im told I could have head spacing issues with a new bolt possibly requiring gun smithing work. This true?
Because of this, im leaning towards trying some lock tight or the likes. Maybe also putting some punch mark in the bolt to protrude material into the hole on the left side, and on the right side do the same of the actual shaft of the retaining pin. Will have to run this past a machinist.
Click to expand...
  1. Did you try that with a different firing pin with a different retainer clip properly installed?
  2. Ya of course when installing a new bolt head spacing should be check especially on surplus rifle's.
  3. Lock tight idea is not too smart of an idea. As when the bolt heat's up some of the lock tight could work it's way onto the firing pin then will atract carbon build up like an SOB. This could cause it to do some out of battery firing.
  4. Peening the retainer clip might work for not making it walk out on you but I would either just buy a new rifle for $200 or contact a gunsmith/machinist to make me an oversized retain pin and get a new firing pin if that's the case.
 
Dude;something at sometime happened to that bolt. Someone has turned the firing pin 90 degrees onto its side and ground/machined a slot in the firing pin. The technicians at an arsenal WOULD NOT have repaired a problem in such a manner. Listen to Satain,{if you won't listen to me} the guy knows what he is talking about when it comes to the sks. Either fix the bolt properly,replace the bolt in it's entirety or buy a new to you gun.Don't fiddle f@%k around,if you're not going to rectify the problem properly then at least have the decency to tell us which range you attend and at what time so we can avoid the crowd spraying slam fire or the ever traumatic out of battery fire. Please remember that a lot of powder is in front of your face.As a gun owner you have a moral responsibility to ensure your firearm is operating as designed.........and right now....yours doesn't.....:D.......my 5 cents worth:p
 
Interesting, I do have access to a "parts" (bent/warped barrel) norinco sks, would the bolt from it work?

I know basically nothing about head spacing, what would it be worth to have it checked, and what would it be worth to have it adjusted?

Do ya think the firing pin and retainer pin from the norinco would work in my bolt? (requiring no head spacing issues)


My firing pin does not appear to have any marks that look like it was referbed by a Russian in his back yard.
Up until this retainer pin issue it functioned perfectly fine.
Its a 55/56 (Tula star on the side of the receiver) you guys sure this is not just another type of firing pin?



The SKS was the last gun I thought I would ever have problems with...
 
rob350 said:
Interesting, I do have access to a "parts" (bent/warped barrel) norinco sks, would the bolt from it work?

I know basically nothing about head spacing, what would it be worth to have it checked, and what would it be worth to have it adjusted?

Do ya think the firing pin and retainer pin from the norinco would work in my bolt? (requiring no head spacing issues)


My firing pin does not appear to have any marks that look like it was referbed by a Russian in his back yard.
Up until this retainer pin issue it functioned perfectly fine.
Its a 55/56 (Tula star on the side of the receiver) you guys sure this is not just another type of firing pin?



The SKS was the last gun I thought I would ever have problems with...
Click to expand...
If you can get part from a chinese, will work. here,s pics

left firing pin is from my chinese late production(1970+?) right pin is from my 55/56 russian Tula, i tried the chinese firing pin and no problem, should work perfectly.
IMG_1083.jpg
[/IMG]

second pic are both retainers. Left 1 is the russian and right 1 is the chinese. Has you can see, the chinese may need corner rounded off but otherwise, they are same, i tried the russian retainer in the chinese bolt and fit very tight like he should.
IMG_1085-1.jpg
[/IMG]

For an unknow reason, your firing pin and possibly the retainer have been messed off. The retainer cannot wear out unless he have been removed each day for the last 50 years! Good luck:)

Cheers Jocelyn
 
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