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GBB issue after running propane for the first time.

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Old March 21st, 2006, 04:05   #1
Dog Face Killer
 
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GBB issue after running propane for the first time.

I have been using duster on my G23 up until the other night when i played a few rounds using propane for the first time.

Towards the end of the night i noticed that my gun would not fire or i was only able to get a few shots out before the mag would empty/discharge all the gas.

i have since disassembled the slide and looked for anything that might have broken, rough edges…iv oiled both the mag and the entire gun for that matter.

Tonight i was test firing it and noticed that now it will fire aprox 15 out of 20 rounds but with seriously reduced power and the accuracy is shit.
Note that the duster im using to fill is a brand new bottle.

Anyone have any ideas?
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Old March 21st, 2006, 05:25   #2
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I had a (somewhat) similar problem with my G18C. There's a screw at the rear of the slide, and after a quick inspection I noticed that it managed to unscrew itself, causing misfires and gas discharges. Couple drops of lock-tite fixed it, haven't experienced any problems since. I don't know if the G23 has the same screw but if it does, check that screw out and make sure it's not coming loose.
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Old March 21st, 2006, 07:15   #3
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no screws loose on the gun... i inspected it from top to bottom!
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Old March 21st, 2006, 09:11   #4
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using propane over duster and experiencing mag discharges could be nothing more than to fast of a trigger pull and cause freeze ups.i believe propane is much colder than duster.fill the mag(room temp) and blast off a clip of ammo counting your shots.do the same with the propane and see what happens.
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Old March 21st, 2006, 09:28   #5
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100% oil issue. Well, lack there of anyways.
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Old March 21st, 2006, 11:49   #6
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duster actually gets cold faster than propane.
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Old March 21st, 2006, 15:52   #7
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yes, but i never ever had any problem running duster before.

Quote:
Originally Posted by ILLusion
duster actually gets cold faster than propane.
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Old March 21st, 2006, 15:54   #8
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I oil'd the shit out of everything. i Tottaly disasembled the entire gun from top to bottom and cleaned and oil'd it.

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Originally Posted by CDN_Stalker
100% oil issue. Well, lack there of anyways.
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Old March 21st, 2006, 15:56   #9
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Crap.
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Old March 21st, 2006, 15:57   #10
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You'd have to take it to a gun docter to take a look at the insides. It's possible that one of the weaker plastic components could have broken, the most likely would be the floating valve, part #24 and looks like this:


Other parts to check:
- O-ring/piston-cup (part #27)
- Nozzle/muzzle/chamber (part #22)

Are you adding silicone oil to your propane before you inject it in your mags?

The fact that you are having problems with duster now indicates that it's not propane that is the problem.
Propane and coincidental timing could have been factors leading towards the failure of a part.

I've run propane through my G23F fine for 2 years with no problems from the beginning.

Your description of the problem is still a bit vague. "It doesn't fire" doesn't really say anything. Did the hammer drop? Was there a click? Did the trigger pull? Did the slide blow back at least? Any release of gas? Is the mag fully engaged to the mag catch? Is the selector fully engaged? Lots of things to consider, lots of questions to ask & answer.

Again, I'd recommend you take it to an experienced Glock airsmith.
I see you're also in toronto. If you have a way to meet with me, PM me and we'll see if I can take a look at it for you.
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Old March 21st, 2006, 16:46   #11
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It's possible that one of the weaker plastic components could have broken, the most likely would be the floating valve, part #24

I tried to get the pin out thats holds part #24 in but was afraid that part #22 would brake if i tried!

Other parts to check:
- O-ring/piston-cup (part #27) = Fine
- Nozzle/muzzle/chamber (part #22) = Fine

Are you adding silicone oil to your propane before you inject it in your mags? = Yes.

Did the hammer drop? Yes
Was there a click? Yes
Did the trigger pull? Yes
Did the slide blow back at least? When i got home from my game it was not locking back with an empty clip (Gas only)! After oiling it i had no more issues.
Any release of gas? At first i was able to get 1 maybee 2 shots out of a full clip of gas before it would blow off all the gas in the clip. after oiling it it was fine.
Is the mag fully engaged to the mag catch? Yes
Is the selector fully engaged? yes
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Old March 21st, 2006, 17:30   #12
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Look in the trigger frame and see if the trigger pin (part #78 ) is broken or not. I've got a G19 that I just acquired that has that part broken thus sometimes it will hit the valve and vent all the gas as it gets stuck and sometimes not.
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Old March 21st, 2006, 17:43   #13
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defintaly not part 78.
I had the reciever apart last night... DAMN was it hard to get that little bitch back in. I feel for anyone that wants to upgrade the hammer spring! lol

Quote:
Originally Posted by KwokwaiWu
Look in the trigger frame and see if the trigger pin (part #78 ) is broken or not. I've got a G19 that I just acquired that has that part broken thus sometimes it will hit the valve and vent all the gas as it gets stuck and sometimes not.
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Old March 21st, 2006, 18:22   #14
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[QUOTE=Dog Face Killer]It's possible that one of the weaker plastic components could have broken, the most likely would be the floating valve, part #24

I tried to get the pin out thats holds part #24 in but was afraid that part #22 would brake if i tried!

You should be able to see part#24 through the opening below the blowback chamber where the gas enters. Peer into this section and see if this part is undamaged.
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Old March 21st, 2006, 18:35   #15
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I'm leaning to leaky valve on the magazine, due to lack of silicone oil on the mag valve. As Illusion asked, are you adding silicone oil when you're filling your magazines? You need to do it, or your valves will shrink and let out way more gas than is needed when fired, as well as leaking out some gas when it's not being used.
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