glock 18c issue

Daiviet · June 15th, 2007, 18:14

hey, i have a glock 18c, bought it like, 4th hand or something, i dont even know. either way, the previous owner never really had any problems with it however as soon as it got into my hands it started acting up. Its got a metal slide, recoil spring and outer barrel. The problem is when i fire it, either full auto or single it doesnt seem to be cycling properly, the propane pushes the bb out, but doesnt push the slide back far enough, and then vents out all my gas.

i dont know if its a factor, but the left side of the feeding ramp is broken and the hop rubber seems to be messed. i'll take pictures if i can.

anyone know how to solve this?

CDN_Stalker · June 15th, 2007, 18:18

Good oiling will help if not fix the problem. Get oil in around the hammer axle and other parts within the rear of the frame, and some oil into and around the block back nozzle where it slides back & forth in the rear of the frame. And, put a wipe of oil around the tip of the nozzle where it enters the hop up. A bud of mine had the same problem as yours, the BB would come out but not enough to send it fast and hard, and the slide would barely budge. I told him to put oil around the nozzle where it enters the breech/hop up, problem solved.

tunabreath · June 15th, 2007, 19:56

Your rocket valve could be gummy as well. If it isn't closing properly (too strong a spring or broken), all the gas will go to the BB and none to the blowback mech. A sticky rocket valve (spring, lube) would cause what you're describing.

CDN_Stalker · June 15th, 2007, 21:25

Quote:

Originally Posted by tunabreath

Your rocket valve could be gummy as well. If it isn't closing properly (too strong a spring or broken), all the gas will go to the BB and none to the blowback mech. A sticky rocket valve (spring, lube) would cause what you're describing.

Or bent springs not properly re-installed within the nozzle assembly. Those will screw with the retraction.

Daiviet · June 15th, 2007, 23:29

after taking it apart, i think the bent springs are the problem. how much would it screw up my gun?

CDN_Stalker · June 16th, 2007, 10:32

Depends on how bent they are. Generally the gun should still work, but if the springs are caught in the mechanism and not allowing a smooth retraction you could experience some odd problems like not being able to get through a full mag of BBs before the gas runs out. That problem I recently fixed in my upgraded G19. And all I did was cut off the bad parts of the springs, stretch them a bit to compensate for the lost length and reinstalled carefully. And by carefully I mean it has to be done carefully!! Having a small slotted jewellers screwdriver helps a lot.

Scooby Steve · June 16th, 2007, 14:01

Quote:

Originally Posted by CDN_Stalker

And by carefully I mean it has to be done carefully!! Having a small slotted jewellers screwdriver helps a lot.

He's right. Think eyeglass screw, only smaller. At least they're magnetic because mine rolled onto the carpet twice and I would never have found it otherwise.

The Saint · June 16th, 2007, 14:08

You could also order new springs, if you're not confident about reshaping the existing bent ones. IIRC, Leonard (JAFA) can get them, and KSC is a lot quicker to ship the parts than TM.

ILLusion · June 16th, 2007, 14:19

Also check your rocket valve to see if it's still intact. KSC Glocks who exhibit the problem you're mentioning have the caps of their rocket valve cracked off the stem - causing it to be unable to create a proper seal in the cylinder.

Daiviet · June 17th, 2007, 00:12

uhm, whats a rocket valve? heh heh.... d'oh.

Scooby Steve · June 17th, 2007, 01:22

http://www.kicbbgun.com.tw/menu/ksc-g18cs.jpg

It's part #24.

Daiviet · June 17th, 2007, 11:10

nope, it isnt the rocket valve. everything seems to be correct except for the springs, and the hop rubber. i think i'm just gonna order some. thanks guys for the help.

shadowninja · June 17th, 2007, 11:42

http://www.kicbbgun.com.tw/menu/ksc-g18cs.jpg

i have think i have the same problem but its part #22. that sticks out and when the slide returns back it sticks out and lets the propane out

also i cant get the slide off (edit i got it i mised one of the pins)

Daiviet · June 17th, 2007, 22:41

can or cant? if you can't, its probably the hammer in the way. all you have to do is pull down on the release tabs, push the slide forward, and if it doesnt come off, you have to take a small screwdriver or whatnought, take it to the back and push the hammer down. that should solve your problems.

heres a video for reference:
YouTube - KWA Glock 18c Dissasembly Guide

shadowninja · June 18th, 2007, 15:43

ya when ever i put my glock 18c in to full auto i get 2 shots and then the blow back chamber sticks out and loose all the gas

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June 15th, 2007, 18:14	#1
Daiviet Captain Sunshine Trader rating Join Date: Aug 2006	glock 18c issue hey, i have a glock 18c, bought it like, 4th hand or something, i dont even know. either way, the previous owner never really had any problems with it however as soon as it got into my hands it started acting up. Its got a metal slide, recoil spring and outer barrel. The problem is when i fire it, either full auto or single it doesnt seem to be cycling properly, the propane pushes the bb out, but doesnt push the slide back far enough, and then vents out all my gas. i dont know if its a factor, but the left side of the feeding ramp is broken and the hop rubber seems to be messed. i'll take pictures if i can. anyone know how to solve this?

June 15th, 2007, 19:56	#3
tunabreath Trader rating Join Date: Dec 2005 Location: Edmonton, AB	Your rocket valve could be gummy as well. If it isn't closing properly (too strong a spring or broken), all the gas will go to the BB and none to the blowback mech. A sticky rocket valve (spring, lube) would cause what you're describing. __________________ Vita, Passione e Pistole

June 16th, 2007, 10:32	#6
CDN_Stalker Official ASC Bladesmith Trader rating Join Date: Jul 2003 Location: Ottawa, Ont.	Depends on how bent they are. Generally the gun should still work, but if the springs are caught in the mechanism and not allowing a smooth retraction you could experience some odd problems like not being able to get through a full mag of BBs before the gas runs out. That problem I recently fixed in my upgraded G19. And all I did was cut off the bad parts of the springs, stretch them a bit to compensate for the lost length and reinstalled carefully. And by carefully I mean it has to be done carefully!! Having a small slotted jewellers screwdriver helps a lot. __________________ STKR Knives http://www.facebook.com/#!/pages/STK...17036668380871

June 15th, 2007, 18:18	#2
CDN_Stalker Official ASC Bladesmith Trader rating Join Date: Jul 2003 Location: Ottawa, Ont.	Good oiling will help if not fix the problem. Get oil in around the hammer axle and other parts within the rear of the frame, and some oil into and around the block back nozzle where it slides back & forth in the rear of the frame. And, put a wipe of oil around the tip of the nozzle where it enters the hop up. A bud of mine had the same problem as yours, the BB would come out but not enough to send it fast and hard, and the slide would barely budge. I told him to put oil around the nozzle where it enters the breech/hop up, problem solved. __________________ STKR Knives http://www.facebook.com/#!/pages/STK...17036668380871

June 15th, 2007, 23:29	#5
Daiviet Captain Sunshine Trader rating Join Date: Aug 2006	after taking it apart, i think the bent springs are the problem. how much would it screw up my gun?

June 16th, 2007, 14:08	#8
The Saint Trader rating Join Date: Jan 2005 Location: Quebec	You could also order new springs, if you're not confident about reshaping the existing bent ones. IIRC, Leonard (JAFA) can get them, and KSC is a lot quicker to ship the parts than TM. __________________ "The Bird of Hermes is My Name, Eating My Wings to Make Me Tame."

June 16th, 2007, 14:19	#9
ILLusion GBB Whisperer Trader rating Join Date: Jun 2002 Location: Toronto	Also check your rocket valve to see if it's still intact. KSC Glocks who exhibit the problem you're mentioning have the caps of their rocket valve cracked off the stem - causing it to be unable to create a proper seal in the cylinder. __________________ *Advanced Airsoft Armaments and Enhancements* Quick to the gun, sure of your grip. Quick to the threat, sure of your shot. Diligentia, Vis, Celeritas Accuracy, Power, Speed

June 17th, 2007, 00:12	#10
Daiviet Captain Sunshine Trader rating Join Date: Aug 2006	uhm, whats a rocket valve? heh heh.... d'oh.

June 17th, 2007, 01:22	#11
Scooby Steve Trader rating Join Date: Mar 2007 Location: St. Catharines, ON	http://www.kicbbgun.com.tw/menu/ksc-g18cs.jpg It's part #24.

June 17th, 2007, 11:10	#12
Daiviet Captain Sunshine Trader rating Join Date: Aug 2006	nope, it isnt the rocket valve. everything seems to be correct except for the springs, and the hop rubber. i think i'm just gonna order some. thanks guys for the help.

June 17th, 2007, 11:42	#13
shadowninja Trader rating Join Date: Apr 2006 Location: kitchener,ont,canada	http://www.kicbbgun.com.tw/menu/ksc-g18cs.jpg i have think i have the same problem but its part #22. that sticks out and when the slide returns back it sticks out and lets the propane out also i cant get the slide off (edit i got it i mised one of the pins) __________________ Last edited by shadowninja; June 18th, 2007 at 15:35..

June 17th, 2007, 22:41	#14
Daiviet Captain Sunshine Trader rating Join Date: Aug 2006	can or cant? if you can't, its probably the hammer in the way. all you have to do is pull down on the release tabs, push the slide forward, and if it doesnt come off, you have to take a small screwdriver or whatnought, take it to the back and push the hammer down. that should solve your problems. heres a video for reference: YouTube - KWA Glock 18c Dissasembly Guide

June 18th, 2007, 15:43	#15
shadowninja Trader rating Join Date: Apr 2006 Location: kitchener,ont,canada	ya when ever i put my glock 18c in to full auto i get 2 shots and then the blow back chamber sticks out and loose all the gas __________________

glock 18c issue

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