Yugo SKS Bolt

[XSiL3nTX]

I have a yugo sks bolt that had a sticky firing pin, so I had dissembled the entire thing and boiled it 3 different times. I also soaked the bolt in Hoppes 9 and even sprayed it down with WD40, but the firing pin will not free float. The bolt channel and firing pin are free of all cosmoline. Any ideas what this can be?

Any help would be appreciated.

[Full Clip]

Bolt info.

[Yugo]

Bolt info.

thanks...I was wondering how to clean that? Ive been

[RickyB]

Stupid question but does anyone ever use PB Blaster for things like this? Some guys on the MR2 forum turned me onto this stuff about 6 years ago----and it's been my favorite stuff ever since for stuck hardware, bolts, machine screws etc.....

[XSiL3nTX]

Bolt info.

Yes. I've disassembled and reassembled the bolt; cleaned it and it will still not free float.

[dangerranger]

Im not a gunsmith, but Ive had a few SKSs. I dont think the firing pin is suposed to float freely. if it does it causes the gun to go full auto. [ uncontrolled...in a bad way.] one of mine did that, smith took the firing pin out and put a slight bend in it so that you could easily push it back and forth but it wouldnt rattle by shakeing it. stoped the problem. DR

[Heavy_Grinder]

Im not a gunsmith, but Ive had a few SKSs. I dont think the firing pin is suposed to float freely. if it does it causes the gun to go full auto. [ uncontrolled...in a bad way.] one of mine did that, smith took the firing pin out and put a slight bend in it so that you could easily push it back and forth but it wouldnt rattle by shakeing it. stoped the problem. DR

The SKS firing pin is supposed to float freely (back and forth play). The first Russian SKS's had a spring loaded firing pin but the design changed to a free float circa 1951. Subsequently all other types of SKS copied the free float design.

Check out Murrays Gun. They now make reproduction spring loaded firing pins. They also give info on stuck free floating pins and how to remedy a stubborn/stuck pin.

[Haggar85]

had the same problem with mine. i boiled all the parts in hot water then sprayed them with break cleaner and that seemed to solve the problem. i think tapco makes a replacement firing pin for the sks for a reasonable price.

[Mssr. Eleganté]

Yes. I've disassembled and reassembled the bolt; cleaned it and it will still not free float.

Could your firing pin be bent a little bit?

One of mine kept sticking until I soaked the bolt in carb cleaner and sanded the firing pin a little bit. It's hard to see the baked on layer of cosmoline in the firing pin channel.

[XSiL3nTX]

Could your firing pin be bent a little bit?

One of mine kept sticking until I soaked the bolt in carb cleaner and sanded the firing pin a little bit. It's hard to see the baked on layer of cosmoline in the firing pin channel.

That's what I'm thinking. I'm probably going to have to purchase a new firing pin.

[johnthomas]

When you put it together did you dry fire it and the pin stuck in the forward position or it doesn't slide in easily? As mentioned, could be a bent firing pin, not common. Could be rusted and pitted. Or it could be this.

http://www.murraysguns.com/poppedprimers.htm

[XSiL3nTX]

When you put it together did you dry fire it and the pin stuck in the forward position or it doesn't slide in easily? As mentioned, could be a bent firing pin, not common. Could be rusted and pitted. Or it could be this.
http://www.murraysguns.com/poppedprimers.htm

Both. The pin sticks out when I dry fire it and will only go in if I push the firing pin with my finger. It also takes some pressure to put the firing pin into the bolt channel. It doesn't go in smoothly like it should.

[laika]

+1 on the Murrays firing pin. Not only did it guarantee I won't slamfire, it allows me to shoot Wolf ammo in my yugo which absolutely would choke on Wolf before. Gives me great peace of mind.

[Ergo the Qualmed]

Both. The pin sticks out when I dry fire it and will only go in if I push the firing pin with my finger. It also takes some pressure to put the firing pin into the bolt channel. It doesn't go in smoothly like it should.

Yeah, I had a popped primer that lodged my FP in the forward position.

I punched out the retaining pin, and using some pliers, was able to wrench the FP out. Turns out, on one of the humps that the retaining pin acts on, a burr had developed. Using my dremel, I VERY VERY VERY LIGHTLY smoothed the burr down. Such that my SKS works fine now, with no issues. Though I am reticent to use imported ammo with it, because it was the cause of the problem in the first place... :/

So, perhaps you had a small burr? It prevented free-float, and locked it in the forward position, until I gently removed it.

[6mmintl]

Mine had a bent pin and would stick, almost slamfired.

Bought a new pin, keep it clean, and it solved the problem.