Jump to content


KWA G36C 2GX shs "blue" piston


  • Please log in to reply
32 replies to this topic

#1 AirsoftinMaine

AirsoftinMaine

    Newbie

  • Members
  • Pip
  • 17 posts
  • Gender:Male
  • Location:Maine
  • Interests:Airsoft n Fishing.
  • Country:

Posted 13 January 2014 - 08:54 AM

I blew out my kwa piston not too long ago and I am looking into aftermarket pistons. I have read everything from kwa pistons being wider, sectors not meshing with the pistons, and others saying aftermarket pistons work fine. Can someone who has installed and ran an aftermarket piston confirm any of these things? I want to run the SHS blue 15 tooth with aoe corrected and what not but I don't want to wreck a gear or something jamming the piston up.

#2 tales

tales

    Specialist

  • Members
  • PipPipPip
  • 490 posts
  • Gender:Male
  • Location:Brooklyn NY
  • Interests:Fishing, RC cars, Building Motion Picture sets
  • Country:

Posted 13 January 2014 - 02:50 PM

These all worked in my 2Gx gearbox

Posted Image

Posted Image

SHS top KWA bottom
Posted Image

Pisto heads
Posted Image


Posted Image

Edited by tales, 13 January 2014 - 03:00 PM.


#3 hellcat

hellcat

    Enthusiast

  • Members
  • PipPip
  • 129 posts
  • Gender:Male
  • Location:west palm beach florida
  • Interests:Airsoft, Football, Nascar, Guns, cars/trucks, and of women in yoga pants!!
  • Country:

Posted 13 January 2014 - 04:40 PM

stick to the stock piston.....don't recommend a full metal rack piston....failed pistons are cheaper then a failed gear set.

#4 AirsoftinMaine

AirsoftinMaine

    Newbie

  • Members
  • Pip
  • 17 posts
  • Gender:Male
  • Location:Maine
  • Interests:Airsoft n Fishing.
  • Country:

Posted 13 January 2014 - 05:25 PM

I did some experimenting and the tooth rack on the 15 tooth piston was actually too thin for kwa sector gear so the edge of the tooth on one side was digging in to the plastic of the piston body. I decided to remove it for now. I am thinking of just buying another kwa piston and taking some teeth of that for AOE. Any thoughts as to why the piston wasn't working right in my kwa?

#5 tales

tales

    Specialist

  • Members
  • PipPipPip
  • 490 posts
  • Gender:Male
  • Location:Brooklyn NY
  • Interests:Fishing, RC cars, Building Motion Picture sets
  • Country:

Posted 13 January 2014 - 05:44 PM

I stand corrected, blow out another stock piston. Stock pistons are $35 you will be in for $70 gears are $59
Anyway, the top piston Azimuth is a great non steel toot piston.  Good choice for a KWA replacement piston.

All the pistons i posted have the same tooth dimensions as KWAs piston & you can get them with or without steel teeth (thats a preference. I use both i damaged more KWA pistons then steel tooth, your choice)

To answer your question aftermarket pistons fit & mesh fine.

#6 tales

tales

    Specialist

  • Members
  • PipPipPip
  • 490 posts
  • Gender:Male
  • Location:Brooklyn NY
  • Interests:Fishing, RC cars, Building Motion Picture sets
  • Country:

Posted 13 January 2014 - 05:49 PM

View PostAirsoftinMaine, on 13 January 2014 - 05:25 PM, said:

I did some experimenting and the tooth rack on the 15 tooth piston was actually too thin for kwa sector gear so the edge of the tooth on one side was digging in to the plastic of the piston body. I decided to remove it for now. I am thinking of just buying another kwa piston and taking some teeth of that for AOE. Any thoughts as to why the piston wasn't working right in my kwa?

Was it the SHS super shooter clear blue piston, Non metal
Posted Image

#7 tales

tales

    Specialist

  • Members
  • PipPipPip
  • 490 posts
  • Gender:Male
  • Location:Brooklyn NY
  • Interests:Fishing, RC cars, Building Motion Picture sets
  • Country:

Posted 13 January 2014 - 05:51 PM

SHS 14 metal tooth in a RIS
Posted Image

#8 AirsoftinMaine

AirsoftinMaine

    Newbie

  • Members
  • Pip
  • 17 posts
  • Gender:Male
  • Location:Maine
  • Interests:Airsoft n Fishing.
  • Country:

Posted 13 January 2014 - 05:59 PM

The piston I used was this one right here.
http://clandestineai...tooth-p-56.html

#9 tales

tales

    Specialist

  • Members
  • PipPipPip
  • 490 posts
  • Gender:Male
  • Location:Brooklyn NY
  • Interests:Fishing, RC cars, Building Motion Picture sets
  • Country:

Posted 13 January 2014 - 06:02 PM

It should fit, 14 tooth is a better choice.

#10 AirsoftinMaine

AirsoftinMaine

    Newbie

  • Members
  • Pip
  • 17 posts
  • Gender:Male
  • Location:Maine
  • Interests:Airsoft n Fishing.
  • Country:

Posted 13 January 2014 - 06:03 PM

It should, and it fired rounds, but the plastic before the pickup tooth is dug up a bit from the sector gear. I haven't really seen anything like that before.

#11 tales

tales

    Specialist

  • Members
  • PipPipPip
  • 490 posts
  • Gender:Male
  • Location:Brooklyn NY
  • Interests:Fishing, RC cars, Building Motion Picture sets
  • Country:

Posted 13 January 2014 - 06:03 PM

Can you post a pic of it in the cylinder and the AOE like i did in post #7?

#12 tales

tales

    Specialist

  • Members
  • PipPipPip
  • 490 posts
  • Gender:Male
  • Location:Brooklyn NY
  • Interests:Fishing, RC cars, Building Motion Picture sets
  • Country:

Posted 13 January 2014 - 06:06 PM

Your into Ronnie James Dio? I seen him with Rainbow & Sabbath

#13 AirsoftinMaine

AirsoftinMaine

    Newbie

  • Members
  • Pip
  • 17 posts
  • Gender:Male
  • Location:Maine
  • Interests:Airsoft n Fishing.
  • Country:

Posted 13 January 2014 - 06:34 PM

Here is a pic if it uploads correctly.

Nope, file is to big.

#14 AirsoftinMaine

AirsoftinMaine

    Newbie

  • Members
  • Pip
  • 17 posts
  • Gender:Male
  • Location:Maine
  • Interests:Airsoft n Fishing.
  • Country:

Posted 13 January 2014 - 06:43 PM

Here we go. Here is the pic of the AOE and the shs blue in the KWA v3. It's also worth noting I am running a ZCI aluminum ported piston head as well.

Attached Files


Edited by AirsoftinMaine, 13 January 2014 - 06:54 PM.


#15 tales

tales

    Specialist

  • Members
  • PipPipPip
  • 490 posts
  • Gender:Male
  • Location:Brooklyn NY
  • Interests:Fishing, RC cars, Building Motion Picture sets
  • Country:

Posted 13 January 2014 - 07:08 PM

Is the piston all the way into the cylinder? What piston head & cylinder head are you using?
1st tooth should be in the 1 o'clock position. That looks way off.  Why is the piston sticking so far out of the cylinder.
I don't have a v3 that don't look right.

#16 tales

tales

    Specialist

  • Members
  • PipPipPip
  • 490 posts
  • Gender:Male
  • Location:Brooklyn NY
  • Interests:Fishing, RC cars, Building Motion Picture sets
  • Country:

Posted 13 January 2014 - 07:11 PM

It looks like there is a SHS shim, did you re-shim the GB?

#17 AirsoftinMaine

AirsoftinMaine

    Newbie

  • Members
  • Pip
  • 17 posts
  • Gender:Male
  • Location:Maine
  • Interests:Airsoft n Fishing.
  • Country:

Posted 13 January 2014 - 07:17 PM

It is reshimmed. The sector was fairly loose when I first opened it up. The reason why the piston is far back is because the spring is not in it. The spring tension compresses it a little more forward. When It is compressed, the sector gear tooth is completely flat against the pickup tooth on the piston.

It has a ZCI aluminum piston head and stock cylinder head.

Edited by AirsoftinMaine, 13 January 2014 - 07:21 PM.


#18 tales

tales

    Specialist

  • Members
  • PipPipPip
  • 490 posts
  • Gender:Male
  • Location:Brooklyn NY
  • Interests:Fishing, RC cars, Building Motion Picture sets
  • Country:

Posted 13 January 2014 - 07:52 PM

That piston looks shot. I don't know! was the gear "fairly loose" when the GB had the screws in it?
Honestly wait for someone with a v3 to reply

#19 AirsoftinMaine

AirsoftinMaine

    Newbie

  • Members
  • Pip
  • 17 posts
  • Gender:Male
  • Location:Maine
  • Interests:Airsoft n Fishing.
  • Country:

Posted 13 January 2014 - 08:02 PM

By fairly loose I mean it had a little too much play for my liking. That one shim fixed the problem and it ran much better. Upon further inspection I did notice that the end of the tooth rack was slightly bent and was VERY hard to remove from the piston body. I was a little suspicious but I shook it off. Like I said, it runs just not too well. I think that bend probably is causing the issue. I did try to run it in an ICS SIG 551 as well and it had the same issue. I also noticed (in both guns actually) the piston made the gun sound poorly shimmed and slowed the rof

I tried a ZCI piston not too long ago and it ran great in that V3. As a matter of fact, it ran better than the stock piston. Here is a link to the ZCI piston: http://clandestineai...ston-p-542.html

I think tomorrow I am going to try to run some pistons I have laying around and see how they work out. I think I will more than likely find that SHS piston is indeed a lemon. I'll post an update tomorrow after I am finished.

Edited by AirsoftinMaine, 13 January 2014 - 08:10 PM.


#20 tales

tales

    Specialist

  • Members
  • PipPipPip
  • 490 posts
  • Gender:Male
  • Location:Brooklyn NY
  • Interests:Fishing, RC cars, Building Motion Picture sets
  • Country:

Posted 13 January 2014 - 08:54 PM

Try another piston. I had problems with SHS POM piston heads.
One SHS piston cracked
Posted Image




0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users