Broken piston head, bad?

[Sacre]

So, my gun randomly stopped firing at the good ole 360FPS, and went down to 2fps. So, i took her apart and found that the oring was snapped. I replaced it with a new one but my fps was only around... 10.. lol, so i reopened it up and the oring was rolled and mishapen (typo?).

So, i took a second look at this piston head and found something weird, the placement for the Oring allowed the oring to move freely backwards, and placed the oring against sharp edges,

check out the pics.

Shot with CG10 at 2010-01-28

Shot with CG10 at 2010-01-28

Shot with CG10 at 2010-01-28

Tell me, does this look right to you? (ignore the hair). So i replaced the piston head with a new one, and shes firing nice and strong again.

But wow, what a terrible design imo, its like its made to break quicker then a standard piston head.

~Sacre~

[ILLusion]

What brand piston head is this? Everything about that photo looks wrong.

It looks like the face of the piston head attached itself directly to the cylinder head and sheared clean off the piston head base.

The o-ring is not placed in the correct position you have it in that photo... it should actually be sitting on TOP of all that...... "junk" in the middle.

I don't think I've seen such a messed up piston head in my entire airsoft career.

[Sacre]

Originally Posted by ILLusion

What gun is this? Everything about that photo looks wrong.

It looks like the face of the piston head has sheared clean off, and left a stump in the middle...

lol i know eh, looks terrible. Like its missing the other half of the piston head.

the G&G GR16 R4 Commando rifle.

She was firing like a dream for the first month, then poof, this happens. I replaced it, but man thats one hell of a piston head.

[Amos]

It looks like it's either a MAJOR casting failure... or the piston face has gone and fucked off somewhere and someone tried to put the O-ring on in a different place..

[PaCHeKo!]

LoL! That's not pretty. I'm sure you did shot few piston head plastic chips instead of BBs.

[Skruface]

Not repairable. Bin it and buy a Modify or ARS piston head to replace it.

[Sacre]

Originally Posted by Skruface

Not repairable. Bin it and buy a Modify or ARS piston head to replace it.

Oh yea shes been replaced, now i'm getting my nice 360fps again lol.

Seems like the design was similar to http://www.airsoftcore.com/images/re...gg/cmm4_11.jpg

and the piston head was shattered, probably due to the cold weather? no?

Ah well, when i took her apart i was shocked at how bad that piston head was, and figured something was wrong lol. Hence the post here.

[Skruface]

It almost looks like the stuff on the front of the piston head was supposed to be some kind of a shock absorber, like the pitson face on a silent head set. Was it soft and compressable? Also, it looks like the back half of the piston head (it looks like a 2-piece design) is completely missing....

[Amos]

Nah that was a broken G&G piston head for sure.

The inside has that neat design lol

[StrikeFreedom]

Seems like half of the piston head got twisted off.

[Drake]

I agree with Illusion's assessment: it looks like the face of the piston head sheared off and embedded itself in the cylinder head. And it looks like the cylinder head doesn't have "impact pad" (the bit that gets replaced by sorbo pads).

That's pretty eww btw, I've seen nicer internals in ACM guns.

[Azathoth]

That must be from a G&G Combat machine. CHuck and buy something to replace it with. While you're at it. i recommend a new cylinder head.