KJW P226
 

having taken my P226 apart to investigate a gas leak i cant fit a part back in...

http://www.airsplat.com/Manuals/GP-KJW-KP01-226-4.jpg

Parts 8 and 9...

I dont know which area of the reciver they go into (thanks to the bad angle of the manual)

If you do know, please mark it on this image

http://i9.photobucket.com/albums/a58...Picture017.jpg

Put the loading nozzle (#12) back into the blowback engine cage (#3). Then, follow this picture.

http://img442.imageshack.us/img442/1...ture017gm7.jpg

The the spring guide (#8) will want to stick out of the #3, be sure you use a small screw driver to push it into the cage while you're putting the cage back into the frame. Otherwise, the #8 will prevent you from getting #3 back into the frame properly.

THANK YOU :D:D:

seems so simple now!

While we are here, the reason i took it apart was that after 2 shots, i lost pressue and the slide would not cycle. what would cause this? ive used two different mags with summer gas...

Check your loading nozzle and the bits inside the loading nozzle for damage. Could be something as small as a hairline crack.

This might be a silly question, but what gas are you using in it. That sounds exactly like what happens to my KJW M9 when I use duster gas instead of propane.

Summer aka, green gas.

Do you think changing it would make a difference?

No. Green gas and propane are the same thing. I was asking just by the odd chance that you were perhaps running duster gas (HFC 134A) instead, because your gun is made to run on green gas / propane. I tried 134 gas in my KJW M9 just to see what it would do, and it seemed to do the same as you described.

Perhaps it's the outlet valve on the magazine (part 76) that's the problem. Is it moving smoothly in and out when the mag is empty?

past works fine. taking apart again to check all the seals.

Only damage ive found so far is this:

http://i9.photobucket.com/albums/a58...Picture019.jpg


the little bit of silver is shorn off metal.

This is a second hander so i was expecting problems...

It's not really cold where you're testing the gun, is it? And you're loading enough gas into the mag? Not using an almost empty can or anything? Is part #30 intact? What does the gun do when you fire it, does it do a whimpy little "burp" fire?

Gun test is indoors about 18-20*c

part 30 is intact.

Two proper shots with the action cycling (quite loud thank to the metal slide), then the third shot at alot less power. then nothing. all gas expended with those shots.

Can is brand new

Wait, all gas expanded within 3 shots? It must be venting gas like crazy then. Are you sure parts 11-15 are intact?

Ok... so the gun was bought used. I'm just curious about the mag now.

I was told that TM M9 mags worked with KJW M9s, so I bought one. The thing fits and seats perfectly, but does the exact same thing as yours. I get 2 normal shots with full blowback, 3rd shot has almost no power, ad the gas just vents out. This may not be the case, but perhaps it's not the gun, but an incompatible mag? For kicks, take a pic of the fill valve on the mag and post just so we can see. TM and KJ have different fill valves. Maybe that's the problem.

Just throwing out ideas here

mags are KJW, they have the stamp for it on the bottom.

I'm going to try using blu tac to fill any areas that i think leak and see what happens... at least that way i can see which part leaks so i can repair it.


Certain that these parts are intact: 11 to 15 removed, checked and replaced without complaint. This was after the problems. At the moment i'm looking at the hop unit since there is visable damage there.

Yes, all gas used in three shots. exactly in the way Crunchmeister described it

On my M9 with the TM mag, if I press the base of the TM mag up into the gun and hold it there while I shoot, I tend to be able to get about 15 shots or so before the gas vents off. I've already determined that's because the KJW mag is about 2mm taller than the TM, so I think the valve and firing pin probably don't mate up right. I know it's a mag issue for me.

Of course, I can't say for sure it's your mag, but from my meager understanding of how GBB guns work and your symptoms, that's what it leads me to believe.

contacted the person i got it off, and apparently he had the same issue since the start.

i'm going to use more powerfull gas and see if this improves

What are you thinking of using, and where are you going to get gas more powerful than green gas / propane? CO2 might be an option, but how will you fill mags with that?

CO2 is not an option, please don't even suggest that. Normal airsoft gas pistol mags are not rated for CO2.

Burger, just to dress Chunch's repeated concern, is the mag locking in positively?

In order for the mag to vent massive amount of gas, there has to be one of two problem. One, the valve has to be malfunctioning in someway and closing improperly. It doesn't sound like that's it right now. Two, the internal striker/hammer is not resetting properly/promptly during the slide's cycle.

I'll dismatle the handle completly and investigate the hammer system. however if that does not resolve the issue, i will be taking the former owners advice and using predator gas

Yeah, I wasn't quite sure about that, hence the "might" in my reply.

But even though I don't know squat about the internals of GBB guns, I tend to think that it's either the mag or the striker. That would make sense. However, often things don't seem to make sense when something isn't working right.

It's too bad you don't have another mag to test the gun with, Greasel. That would at least eliminate the mag as the culprit.

Well, at least you're honest about it...

Yeah, I'm an airsoft noob and quite inexperienced with the techical side of the guns, but I tend to learn things quickly on my own. I've been doing repairs and maintenance on CO2 pellet / BB pistols for myself and friends for 20 years or so (although not consistently). I taught myself how to do that too. However, I realize that there's a big difference in GBB airsoft and pellet gun internals. That's why I haven't had the balls to rip apart the internals of my M9 to install the 190% trigger spring I've had kicking around here for almost 2 months.

But troubleshooting is troubleshooting. You observe the problem and find possible causes, then try to either confirm or eliminate them as the source of the problem. And since the gun seems to be in perfect order (from what the OP says) in all other areas, I would focus on the mag and striker first before moving on to other parts. Also, since he's having the identical symptoms that I had using the TM mag in my M9 (and I know it's because the mag sits 2mm too low), then it would seem like it's a reasonable place to start.

mags are not the issue, i'm sure of this since ive tested the spare.

leaves either the pistol (and that would have to leak pretty badly) or the trigger. and since the mags empty fast, i'm thinking trigger

What do you mean by the trigger?

The trigger has nothing to do with it, it would be the gas hammer, if anything.

my bad, i was refering to the entire system of the trigger, hammer and handle

Ok, I didn't realize you had 2 mags. If it does the same with both, it's definitely the gun.

I'm not sure where the part is in particular on the exploded diagram, but check that striker / gas hammer (whatever it's called) first. There should be some kind of spring return on it, so that when it hits the valve and opens it, it returns to not keep the mag valve open. It's quite possible that this part is not returning easily enough (too much spring tension, broken or missing spring, or somehow just striking too hard, causing far too much gas to be released.

But it sounds like you're on the right track now with troubleshooting.