Removing the Romanian "G" kit barrel pin

[Quarterbore]

Originally Posted by KillJoy149

Okay guys, how long / dameter bolt should I use to remove these dang barrel bolts.

And, I am assuming to use Grade 8 Bolts.

Killjoy

Real short... To get the pin started I bought the shortest 1/4-inch grade 8 bolts my hardware had (1/4-inch I think) and I even added a second nut to the bolt and snugged it up with the head for added strength... That got my "G" pin out!

I bent a slightly longer bolt (based on below I think it was 3/4-in long Grade 8) and my pin didn't budge! Also, make sure you wear a safety shield wen fighting with these pins and using these bolts as I would hate to thing what that bolt could do to an eye with over 10-tons of force on it

Barrel pins are the one time when I get everything lined up and snugges up and I put on the safety shield and stand back as the force on those pins is just awsome!

[KillJoy149]

I hate these damn kits!


Apparently I have have one of the Romy G Kits that has a 7mm hole, but they inserted a 11mm pin!

I have bent Grade 8 bolts as short as 1/4". I tried the hammer trick and nothing. I also tried freezing the barrel (woked for my Polish Kit). This last time, I heard a loud crack, and though I had it. I removed everything, and found my Gas Tube Port / Rear Sight Assy, bent to hell!

At least they are only $10. But still!

Argh....I think I am done for this evening.

KillJoy

[Wrangler]

Hi I feel your pain. Mine finally got drilled out. I just too outhte two pins on the rear trunnion. Only cost me two punches broken and one bent but glory be after drilling them out I pushed the rest out fairly easily. Believe it or not one day I will have a finished kit if I am not bankrupted by all this first. Believee it or not I bent a flat with my version of a poor mans jig and the hole all lined up. Wow! Will wonders never cease. One day it will go bang if not boom.

[KillJoy149]

Could you post a pic of your bending Jig?

I know the feeling. I could have bought an AK for $350. So far, I have close to $800ish in one gun. I just purchased another. So, I have $900 in two. About another 3 kits, and I will be making some headway!

At this point, I wish I would have just bought that damned AK! But, at least this way I will have a little pride when it goes bang (hopefully not bang bang bang bang bang bang bang bang bang bang) :) That would be a bad thing. I ain't goin to jail for no damned gun!

KillJoy

[Wrangler]

Man I heard that. Still it is fun to try isn't it. I will have to take some pictures and see if I can get them up for you. I thought about it but just ran out of time. I will try in the next day or so. Actually, it was easier than I thought to make the jig. I figured if I messed up flats were only 12 bucks. I was thrilled when the lower rails actually lined up right and the bolt carrier rode on them.
I felt like Remington or Colt. Still lots to do. I ordered two more kits.

[Wrangler]

HI,

I made a cheap 7 mm barrel pin by going to Home Depot and buying a 7mm x 50mm bolt. I cut off the head and the threads and had a perfect fitting replacement. Cost 58 cents plus a couple of pennies for the tax.

[Davidfxs]

I tried the hardened bolt, a punch. About the time I was about to commit Hari Keri. I tried a Torx socket. After some cringing, and standing as far away from the Old 12 ton Press while still pulling the jack rod, a loud “Pop” was heard. I figured “Great” another broken tool. When I looked it had moved. Believe the difference was the wide top of the socket kept the socket straight.

Pushing out the Barrel was easy. 3 pennies “Now crushed” and again the good ole press.

[Quarterbore]

I was at a build party and one of the guys there had the theory that the trick is getting everything square. He uses a variety of washers to support the trunnions so that it was as square as possible to the pressing pin.

I posted pics of what I use to remove the pins here:

http://www.quarterbore.com/images/amdbuild1/





The bolt has two nuts on it. One on the inside sets the length of bolt and it is set so that the head of the bolt is flush with the socket head. The second nut is tightened down with a wrench so there is no give! IMPORTANT NOTE, THE BOLT HAS ALL THE FORCE - NOT THE SOCKET!

Now, I have bent a few of these short Grade 8 bolts and then it is time to take the grinder and cut the bolt off and start again but this works for me.

Just add some penetrating oil, line everything up, apply pressure and give the base of the jack a whack with a hammer. Add a little more penetrating oil if needed, add more pressure and give it another whack. Often the WHACK with the hammer is when it will pop!