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7/23/2008 7:54:45 PM EDT
I am new with the entire SKS machine I purchased.

I pourchased an Yugo and when dry fired the firing pin sticks, So I purchased a chinese one (Factory code of 016) and everything was clean / lubed and I have read that a "Wet" firing pin can get dirty and Slam fire.

I was wondering what the best fix for my Yugo would be (On the bolt there is a brownish color around where the firing pin protrudes from the bolt) and if the parts were interchangeable.

Also whats the easiest way to remove the "Oil that is on the bolt of the chinese model bolt" to prevent possible slam fires.

I have not taken the firearms to the range since purchase afraid of possible "Slam Fire" on a unchambered round"

Any help would be appreciated.
7/23/2008 9:57:41 PM EDT
[#1]
Likely the firing pin on your yugo is sticking because you need to take the it out and clean the cosmoline so it will move freely. After you have cleaned the cosmo out with whatever cleaner you choose I would lube it very lightly and you should not have any problems with it slam firing. The brownish colored stuff you mentioned is cosmoline, its a protective layer for storage that is easily removed.

So in the end you need to pound out the retaining pin that is holding the firing pin in place. Once you have removed the retaining pin the firing pin will come out. I would then put both in a bowl and soak the bolt and firing pin in some Hopps, that will do the trick.

As long as you are cleaning the rifle in its entirety you really don't need to worry about it slam firing.
7/23/2008 10:03:59 PM EDT
[#2]
Use some non-chlorinated brake cleaner or the like, and soak up all around the firing pin and move it back and forth until no more brown cosmoline comes out, then lube it up with a light oil. Clean the bolt/firing pin like this every 500rds or so, and use hard primer ammo, not USA Rem,Win, etc, and you should not have a slam fire. If you are very concerned about it or will be using soft primer ammo, then you could get your bolt converted to a springloaded firing pin.
7/24/2008 6:16:35 AM EDT
[#3]
Don't put any oil of any kind on a free floating firing pin,it needs to stay dry to keep from sticking,also do not dry fire the YUGO your just  jamming the firing pin up into the firing pin channel ever time you do that.  If you don't want to take it apart boil it in hot water for about 45 minutes,about every 15 minutes take a pair of pliers grab the bolt and shake it back and forth in the boiling water,if you have some high pressure air available blow it out from front to back through the firing pin hole each time,after it rattles freely finish it off by blasting the firing pin channel out with some cheap  non-chlorinated brake cleaner  from front to back through the firing pin hole. Again  don't LUBRICATE THE FIRING PIN leave it DRY.  I clean mine with the brake cleaner every time I get back form shooting along with the rest of the rifle.
7/24/2008 1:53:48 PM EDT
[#4]
Thank you for the information, Looks like the Yugo needs work before I take it to the range, should I clean the Lubricating oil from the bolt on the Chinese SKS before taking that to the range tomarrow?

I am thinking that Brake cleaner (the suggested type) would be the best way to go and fire it (ammunition at the range) dry.

Also would a spring loaded firing pin still be ok to use with hard primer ammunition or would it need to be US made (Lingering thought that I dont wanna be stuck with US only amunition).

Honestly the Yugo was meant for the monthly range visits and the chinese one was to be put up after I took it to the range this week.
7/24/2008 7:24:51 PM EDT
[#5]
As stated, keep the firing pin clean and dry.  

The spring loaded firing pin will work fine with all ammunition.  

I have found one problem with them.  Wolf Military Classic ammo had some batches that the primers would pierce easily.  If you have a pierced primer the gases will escape into the firing pin slot and the heat will take the temper out of the spring.  I lost two springs this way.  When I pulled them out, they were about 1/4" shorter than an undamaged spring.  Luckily the firing pin still floats if this happens.  I am beginning to think that this was the reason the Russians did away with the springs in the first place.  I do like the design of the Murray firing pin.  It is based upon the original Russian firing pin.  It has much less surface contact with the bolt thereby reducing the chance of it sticking.
7/24/2008 8:05:02 PM EDT
[#6]
Head to the gun store and buy a 12 dollar can of gun solvent.  Completely soak that firing pin by spraying it with the solvent and it will be as clean as can be.  I honestly don't see why you would EVER want to not oil a moving part.  If you think about it, dry metal against dry metal is going to damage it.  I oil every single moving mechanism on my yugo and I have had no problems, no slam fires, no negatives.  And I shoot Wolf out of it.
7/25/2008 2:13:34 PM EDT
[#7]
Well a trip to "The Pit" in Lapeer Mi proved to be my first firing of my chinese model which functioned properly EVEN with winchester (known soft primer) ammo.

Met a few members of Zombie Squad and had a blast.

Personally I feel this waas the best purchase as for the Yugo I am still a little Skittish about it until I am able to clean the hell out of it. Gonna spend a week and clean all the Cosmo out of it then range test that one as well.

I was looking forward to putting the Yugo on firing status and the chinese one as a back up.

I never thought the chinese one would be so accuate straight to the range from used status but proved to me my interests in russian firearms to be better then expected. Now I cannot wait until I can pony the funds for an AK!!!
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