SKS Carbines > SKS Gunsmithing & Troubleshooting

Gas piston stuck. How do I fix this?

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Railrider1920:
Hi folks,
This is actually my first post here. I've got a Yougo SKS with a grenade launcher on it. After the gun was shot, it was taken apart to be cleaned. It was put back together, but without the gas piston extension and spring.

The gun was shot a couple of times, each was just a single shot. I'm guessing the lack of the gas tube extension and spring changed it to a single shot instead of a semi-auto. It's
been sitting in a closet for about 4-5 years since that happened.
Now the upper hand guard/gas piston won't come off the rifle.

I'm the new owner.  I'm guessing when it was fired without the extension and spring, the gasses forced the end of the gas piston into the hole where the extension is supposed to be. Now I think it is stuck there, causing the upper hand guard to not come off.

Any idea how I can get this fixed? I thought about putting a rod into where the piston extension goes(the opposite end, above were bullet goes, second pic) and tapping on it with a hammer. Maybe heat up the area where the hand guard catch is and then tap on the rod (1st pic)? Any ideas?
Thanks,
Rob





image uploader

Phosphorus32:
Welcome!

Yes, I bought a similar malfunctioning SKS once. Get a steel rod of a diameter that’ll fit inside the tunnel for the op rod, place the muzzle end down on a scrap 2x4 on a concrete surface. Spray some lube inside the operating rod tunnel, insert the scrap steel rod, and hit it with a hammer. It may require some stout pounding to dislodge the gas piston.

Bob_The_Student:
That's what I would've done. Did it work?

Railrider1920:
Thanks guys. Haven't tried it yet. I'll have to look around for a good rod to try this with.

Fooey:
gunsmith, these rifles ain't $69.95 anymore.

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