air nozzle tappet plate...

[Beeny]

I just dissasembled my gr16 (piston head broke)...1st time ever doing this (as this is my 1st gun).

I had to disassemble it twice....
and i couldnt help but notice that when i reassemble it ..i could easily push the air nozzle/tappet plate back in and it would just go back to being fully out...

But when i disassembled the gun for the 2nd...it wouldnt even move....
I played with the gun for a few hours before that...

Now it seems to work fine (have not put the gun back together yet)
i can push it in and goes it back ou again...

Yea so anyways i was wondering if its a normal thing that after playing with the gun i cant push it in....like its not moving at all....

[HKGhost]

When fully assembled, the tappet plate with nozzle is under spring tension and you'll be able to push the nozzle in and the spring will just pull it back out. This is normal and a function of the gun.

[Beeny]

yea i know that....but after reassembling the gun and playing with it a couple hours...i couldnt push it back in....
Its looks like it stuck halfway...

But if i take the gun apart...then reassemble it it works fin again.....till i go out and shoot it...then it "stucks" again...but the gun still works just fine (fps seems to be a bit low tho)

[HKGhost]

Was the tappet plate fully forward when assembled? If it is, then it's getting caught on something. Are you sure you assembled it correctly?

[Beeny]

it was fully forward when assembled...i could push it in and it came back out just fine....then i took the gun to a skirmish..but the fps seemed kinda low so i took it apart again. When removing the upper receiver i tried pushing it back in and i couldnt...

And i really cant think of what would be blocking it...maybe the gears?

[HKGhost]

It might be the sector gear or the end part might have popped out of it's rail and is getting caught between the shell. Open her up and check that. TIP: after putting everything together and screws, but don't tighten the screws just yet. Push the nozzle in to confirm it's moving freely then tighten all the screws. This might help it back into it's track.

[Beeny]

will do. ty

well actually i just did and it looks okay now...im just scared it will get stuck again next time i take the gun out to skirmish :P

[voorhees -FWA-]

...just to add to what HKGhost suggested...

When you assemble the gears make sure the sector gears' teeth are facing toward the back, out of the way of the piston and spring tack, and the the nub for engaging the tappet plate is at the 1 o'clock position. This way the sector gear doesn't interfere with the complete assembly and the the tappet plate will travel freely once the box is put back together.

Some call this "gear timing" but we all know that's an old wives tale - I call it "keeping shit out of the way"...

[Styrak]

Sorry to say but ignore everyone else's info.

When you put a gearbox back together for the first time, yes you can push the nozzle and it will spring back out. After a cycle or more of the gearbox with a battery, it will no longer do this.

As long as the nozzle is moving back and forth normally with each cycle of the gearbox, it's fine.