WA 1911 Nozzle Sticking...

[RacingManiac]

So I've gotten my hands on a WA SCW2 compact 1911, its a SCW2 Colt MKIV Series 90 Defender based gun, currently resides in a Prime Kimber Stainless Ultra Carry II frame+slide.

As far as I can tell, the gun has stock blowback unit and nozzle, as well as nozzle internal, it has a custom inner barrel, one piece stainless steel outer barrel, and stock hop-up unit.

The gun works fine when you rack the slide and load the BB, fires, and blow-back normally, however the nozzle sticks to the hop-up and thus won't load the next round. Firing a few more shot and once in a while it will load a 2nd round, but its not doing it consistently.

Being pretty much green with WA stuff I am not sure what I should do, I am thinking maybe I take a fine sand paper and just give the nozzle a bit of a sanding to give it a smoother finish. But aside from that I am not sure what else I can do. Open to ideas here...

[Danke]

Can you change the hopup rubber?

[RacingManiac]

I don't have any other. BTW these aren't adjustable right?

[Danke]

I'm just thinking if you sand down the nozzle there's no going back. If it's sticking in the rubber that's an easier to swap part. You could try pulling it off and giving it some acetone in case it's swollen with oil.

[RacingManiac]

Hmm...swollen hop-up, that could be, the gun is pretty oily...

So acetone works for that?

[Amos]

Acetone will leave you will a melted pulp of a rubber.

you want 99% rubbing alcohol.

[Thenooblord]

the problem is likely something else, there are nubs on the nozzle that prevent it from staying in the chamber for the whole length of the slides travel, they pull it out for the last 3/4 or so inch of the stroke, so either those lugs are missing/broken, or its not cycling fully

[lupo]

Check the nozzle spring to make sure that its doing its job , if the slide is short stroking and the spring is dead it may not clear the mag enough to load the next round.
Give the barrel , hopup and nozzle a good cleaning and try it aswell as some of the others have suggested it could be a swollen/deformed hopup rubber.

[RacingManiac]

How does the nubs do that? As far as I can tell nothing is broken in the assembly. There are nothing as I can see that limits the travel of the nozzle. The gun definite reaches the full travel of the slide since the gun will lock back on empty mag, with the nozzle still stuck in the hop-up...

Right now I have a separate issue of trying track down the nozzle spring as it flew out when I tried to do something stupid...lol

[Thenooblord]

ehy are like little wings on each side of the nozzle at the bottom right beside the inlet, this should be the maximum extension of the nozzle

[RacingManiac]

Different version, my nozzle assembly is essentially the same design as the one shown in that toy gun disassembly guide someone posted a while back.

Towards the bottom of the page.

[Thenooblord]

aww. darn. sorry, cant help you then

but still, there should be retention on the nozzle to keep it from extending so far from the BBU

[RacingManiac]

The groove on the side of the nozzle looks like it will tilt the nozzle toward the end of the travel, but no actual "stop". I don't think the tilting help though...

[lupo]

Originally Posted by RacingManiac

Right now I have a separate issue of trying track down the nozzle spring as it flew out when I tried to do something stupid...lol

So there is currently no spring in it right now? The nozzle spring is what pulls the nozzle out of the hopup , sounds like that is at least some of the problem.

[RacingManiac]

I lost the spring during the diagnostic process....I know how it works....right now I am still looking for it, and I am also ordering a replacement...


At any rate the sanding didn't do much...