AK build problems

[nagorb]

I just "finished" a romy g build a few weeks ago but, I'm having a problem closing the bolt fully. Its hard to explain but I was hoping someone might know whats wrong.

Without the bolt in the carrier closes easily to about a .1in. It closes fully with the spring but gets stuck. With the bolt it gets difficult to close at .61in

I think its the piston that's holding it up but not sure. When there is resistance closing the bolt carrier it still has wiggle up, down and side to side. which is why I think its the piston.

Not sure if I explained it in a way that can be understood. Anyone have any suggestions? or in the SF bay area to help and head space?

Thanks, Mike

[bootcamp]

Mike, this is Erik (bootcamp) from the build party. Martin and I were the guys with you tag teaming those stations!

Have you tried oiling everything yet? Both Martin and I had those problems when assembling and once we oiled the snot out of everything the piston slid in like Ron Jeremy at a brothel.

[TURBOELKY]

Was this with a flat? If with a flat, what kind of flat? Without the bolt, it still hangs up? Is it rubbing one of the sides of the rear sight block? If not, are the rails getting narrower towards the front trunnion? With the bolt in, does it move away from the ejector rail if you watch it? Was the rail trimmed? Any pictures? If it was a tapco flat, or an older ak-builder flat, it may be the rails need more trimming. More info needed!!

[MrNiceGuy]

Pic(s) needed, don't really understand to written description.

[bootcamp]

Yes, almost forgot, we forgot to trim the ejector part of the rail at the party Mike. I did shave a little off the tip.

[thedrickel]

Probably the bolt is running into the right side of the front trunnion, above the locking lug.

[Norm222]

...the piston slid in like Ron Jeremy at a brothel.

[ElCUBANO]

Make sure the rails are on tight. The spot welder tips were shot at the end and we were not getting a good weld. The rails may be a little lose near the front. Mine are and my bolt hangs up. Need to redo some of my welds next party. See ya all at the next party.

[SJgunguy24]

Make sure the rails are on tight. The spot welder tips were shot at the end and we were not getting a good weld. The rails may be a little lose near the front. Mine are and my bolt hangs up. Need to redo some of my welds next party. See ya all at the next party.

Drill a hole, clamp, and plug weld with MIG machine. Blend the weld in and refinish.

[nagorb]

Sorry guys my computer crashed so I haven't been able to post pics.

Mike, this is Erik (bootcamp) from the build party. Martin and I were the guys with you tag teaming those stations!

Have you tried oiling everything yet? Both Martin and I had those problems when assembling and once we oiled the snot out of everything the piston slid in like Ron Jeremy at a brothel.

HAHA. Tried oiling but didn't help.

Was this with a flat? If with a flat, what kind of flat? Without the bolt, it still hangs up? Is it rubbing one of the sides of the rear sight block? If not, are the rails getting narrower towards the front trunnion? With the bolt in, does it move away from the ejector rail if you watch it? Was the rail trimmed? Any pictures? If it was a tapco flat, or an older ak-builder flat, it may be the rails need more trimming. More info needed!!

Romy g on an ak builder flat.

w/out the bolt it still hangs up.

Rails get wider towards the front trunnion b/c of the center support. I don't think it moves away from the ejector rail but I don't have it with me now.

Probably the bolt is running into the right side of the front trunnion, above the locking lug.

That's what I was originally thinking but I marked it with a sharpie and it doesn't rub off. Also when it starts to hang up the carrier is still loose, it has play side to side and up and down. That's what makes me think it's the

Make sure the rails are on tight. The spot welder tips were shot at the end and we were not getting a good weld. The rails may be a little lose near the front. Mine are and my bolt hangs up. Need to redo some of my welds next party. See ya all at the next party.

The rails are solid.

Thanks for the tips.

[nagorb]

[JamesY]

If you have time next week after 6 PM, you can bring it over to my place in the east bay. PM me with your availability and we can trouble shoot it. We can headspace it too.

[nagorb]

If you have time next week after 6 PM, you can bring it over to my place in the east bay. PM me with your availability and we can trouble shoot it. We can headspace it too.

Will do thanks!

[SJgunguy24]

Post pics of the gas piston head and the inside of the gas block. Pull the firing pin and see if the bolt will lock up with a live round into the trunion without the carrier. It should turn and lock up pretty solid, if not it's a headspace issue. Me thinks it's in the piston head.

[nagorb]

Took it over to JamesYs place, ended up being the piston, we replaced it with a new one and it cycles smoothly now.

Thanks again James!