M15A4 Stopped Shooting

Kos-Mos · January 7th, 2008, 21:42

is it just me or that piston looks like any stock piston???

Here is a pic of mine (got lucky, I was working in my mechbox)

CDN_Stalker · January 7th, 2008, 21:43

Quote:

Originally Posted by nubC4K3S

Yea, thanks. I realized that was the selector plate when i was opening it and looking at guides. Should i look into getting a new piston and cylinder head among other things, or just those two? Im going to go post in ASR too, thanks for looking.

Add a new piston head to the list, they tend not to come together (unless you buy the greatly under rated stock TM piston.)

nubC4K3S · January 7th, 2008, 22:56

Im not just a noob, and it isnt supposed to look the way mine does right. I think that the cylinder head broke in two and is stuck in the piston. The piston should be hollow, and you should be able to see through it right?

nubC4K3S · January 7th, 2008, 22:58

Quote:

Originally Posted by Kos-Mos

is it just me or that piston looks like any stock piston???

Here is a pic of mine (got lucky, I was working in my mechbox)

What is that out of, because i think that that is a different make, if in not mistaken.

nubC4K3S · January 7th, 2008, 23:07

Tokyo Marui springs attach to the pistol head with an assembly inside the piston head. Anyone know if classic armies are supposed to work the same way or no?
Also, how tight should the o-ring be on the cylinder head.

Kos-Mos · January 8th, 2008, 00:03

It do is a TM piston (even if it is in a Star G36)

The piston is not supposed to be attached to the piston head to what I know. Only TM and some clones do this. If it is not attached and the piston head does not fall-off, then it is ok.

And the o-ring should be loose enought so that it can go in about 1/4 inch inside the head when you press on it. It is a very loose fit. You can vent the head (if not already) so that the air goes inside the head and behind the o-ring to push it against the cylinder wall. It creates a better seal and help with the suck back because the air can pass in there on the other way.

*edit* hold a sec... I will completely disassemble it so show you... all pistons are looking the same way. there should only be a small hole in the center to have the piston head screw through.

Here is what any piston should look like on the front end, behind the head

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January 7th, 2008, 23:07	#35
nubC4K3S Trader rating Join Date: Dec 2007 Location: New Jersey, USA	Tokyo Marui springs attach to the pistol head with an assembly inside the piston head. Anyone know if classic armies are supposed to work the same way or no? Also, how tight should the o-ring be on the cylinder head. Last edited by nubC4K3S; January 7th, 2008 at 23:13..

January 8th, 2008, 00:03	#36
Kos-Mos Trader rating Join Date: Nov 2005 Location: Lévis (QC)	It do is a TM piston (even if it is in a Star G36) The piston is not supposed to be attached to the piston head to what I know. Only TM and some clones do this. If it is not attached and the piston head does not fall-off, then it is ok. And the o-ring should be loose enought so that it can go in about 1/4 inch inside the head when you press on it. It is a very loose fit. You can vent the head (if not already) so that the air goes inside the head and behind the o-ring to push it against the cylinder wall. It creates a better seal and help with the suck back because the air can pass in there on the other way. edit hold a sec... I will completely disassemble it so show you... all pistons are looking the same way. there should only be a small hole in the center to have the piston head screw through. Here is what any piston should look like on the front end, behind the head Last edited by Kos-Mos; January 8th, 2008 at 00:08..

January 7th, 2008, 21:42	#31
Kos-Mos Trader rating Join Date: Nov 2005 Location: Lévis (QC)	is it just me or that piston looks like any stock piston??? Here is a pic of mine (got lucky, I was working in my mechbox)

January 7th, 2008, 22:56	#33
nubC4K3S Trader rating Join Date: Dec 2007 Location: New Jersey, USA	Im not just a noob, and it isnt supposed to look the way mine does right. I think that the cylinder head broke in two and is stuck in the piston. The piston should be hollow, and you should be able to see through it right?

M15A4 Stopped Shooting

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