When I got back to my shop and upon further inspection it was seized up tight, After using every kind of chemical I had at hand that would break it loose I wound up using a led pig and a dead blow hammer to drive io out of the tube. I put it away till I could get home and check it out. The rod was stuck in the back position and would not move. I always clean it after i shoot it, but yesterday at the bange after only about firing 35 rounds the hand guard gas tube and rod flew out and over my head landing behind me. Here is a problem I had yesterday at the range with my Norinco SKS I have had it at the range in the past and have probably put 5 or 6 hundred rounds down range over time. I haven't been on here in awhile but I hope to get back pretty regularly again, like me my laptop is getting old and slow. I'll see if he's tried roto-rooter w/ bore paste and give him CNC info thanks This rifle is a 59/66 typical import like the ones we know. He custom builds his AK's, carried one in Nam. No sorry the gun isn't Vietnam era, just the owner. Check for bent parts and scrub the living shit out of the gas system, use the JB bore paste, brushes, and oooo steel wool just like a Mosin chamber cleaning. I should remember it because it's still there, I stored that one away just like it was, I have a Soviet SKS that I shoot when I infrequently shoot them at all. I remember the mess my Yugo SKS was when I got it, brand new weapon with what looked like 1950's style hub bearing grease packed in it. Gas systems have heat and pressure, a lot of both, who knows what migrated there with the gasses from the fired commie rounds, and what the sub dollar store level lubricants and axle grease they used to store these rifles. How many times have people, many with some military experience, been on this board complaining about bolts that just stick tight after a magazine or two were fired through them? Between this board and the other I have answered that question several hundred times. In Vietnam cosmoline was the preservative we used, and solvents and heat easily removed it. Things like preservatives that leave invisible layers of crap that need JB bore paste and steel wool to remove just aren't something first world soldiers have to put up with. I bet he hasn't much experience dealing with a commie weapon that's been stored 50 years with the cheapest preservatives they could find. He's probably very familiar with the crap ammo issue the M16 had when first fielded, and mud or course. Can they get bent or worn and cause this to happen ?Īir Cav in Nam means he fought a war with first world weapons that used first world ammo, and metal preservatives when in storage. This one is owned by by a friend that was an Air Cav weapons spec. Are you certain this is a Vietnam era gun? One thing for sure is that the Yugoslavians greased these up significantly, perhaps even back then. Kind of seems to me that this would happen if there were grease in the gas system that wasn't cleaned out and then fired a lot. But, I'd make sure that the gas system was clean and dry first with no obstacles in the system first. Would be a cheap and easy diagnostic tool anyway.
I saw in a search, a US made replacement piston for for Yugo's for under $20 at CNC Warrior. The good news is that you can replace the gas piston cheaply to determine if you piston is bad. Anything could happen but, if bent, I would suspect it was always bent or some how the system itself got dinged a little. I'm thinking that it would be pretty difficult to bend the piston by firing it. Have you actually inspected the gas system? Have you worked it by hand to determine if there is any binding? When I had SKS's, I was sure to make sure the gas system was clean and dry.
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