Hicapa slide not returning forward

[naminator]

My Hicapa 5.1 is having issues. Gun was sold to me as a TM and I believe it is. It has a steel outer barrel, heavy metal slide, metal frame and metal recoil guide rod. It also has an upgraded recoil spring and a brand new WE hopup (it is missing that little black plastic square though).

So I got all my replacement parts, rebuilt my mags and went to test fire my hicapa. First shot was amazing. That is when shit failed on me. The gun dumped the entire mag of gas on the followup shot and the slide only went back a few CM.

So I unloaded the gun and racked the slide several times to try and find the issue. As long as I held the slide while racking it everything worked. But when I pulled the slide fully back and released it, it would not go fully forward.

The slide sits about 2-3 centimeters from being in the proper position. It is such a small distance that I could potentially fire the gun again from the position. But the slide is next to impossible to draw back. I have to lightly tap or push the outer barrel for the slide to travel forward all the way.


Obviously I don't have xray vision so I can't see what is going on inside the gun. However it seems to me like the outbarrel is slipping off the recoil guide rod and jamming the slide. I only assume this because I am pushing on the outer barrel.



Any advise or suggestions on how to fix this would be amazing.

[Sequential]

The parts are catching each other, it's because you have a mix of different brands. It normally happens when the gun has WE parts.

The barrel getting caught on the slide is what it sounds like you are having.

Make sure you have the black plastic square back in place for the hop-up, as upon cycling the inner barrel and hop-up assembly might slide out and get caught causing jamming once again.

[jamuke]

Depends on how far down you stripped your capa.

Try loosening the grip screws and if necessary adjust the cant, this will be a millimeter or so of a fix, don't screw in the grips super tight either

Otherwise pics help

[Sequential]

Originally Posted by jamuke

Depends on how far down you stripped your capa.

Try loosening the grip screws and if necessary adjust the cant, this will be a millimeter or so of a fix, don't screw in the grips super tight either

Otherwise pics help

Grip screws don't make a difference if they are tightened or not on a Hi-Capa, you only worry about the grip screws being too long and causing the magazine not to go in all the way and not latch on the mag release.

[naminator]

I lost that tiny plastic piece like 2 years ago. My old hopup got royally fucked up, but I can try using that one again.

@ Sequential I was told that tiny black piece isn't really needed.

@ Jamuke I am going to try my old hopup unit, if that still causes the jamming I will try adjusting the cant. I don't remember how far I previously stripped it down, I just remember having a nightmare of a time getting it back together and then I lost my hopup screws and shelved the project (that was like 3 years ago).

[Sequential]

Originally Posted by naminator

I lost that tiny plastic piece like 2 years ago. My old hopup got royally fucked up, but I can try using that one again.

@ Sequential I was told that tiny black piece isn't really needed.

@ Jamuke I am going to try my old hopup unit, if that still causes the jamming I will try adjusting the cant. I don't remember how far I previously stripped it down, I just remember having a nightmare of a time getting it back together and then I lost my hopup screws and shelved the project (that was like 3 years ago).

People say that black piece isn't really needed, but WE manufactured it on the Hop-up unit for a reason. It's so that the hop-up unit, doesn't slide right out from the outer barrel.

With TM, it is not there but installing a TM hop-up unit with a metal outer barrel is painful as it is a very TIGHT fit. So tight that the TM hop-up unit won't slide out of the outer barrel easy.

If you ever need help with the Hi-Capa disassembly, refer back to Illusion's disassembly/reassembly video.

https://www.youtube.com/watch?v=rWFw3Iusncs

[jamuke]

I hear you Sequential,

Though I have experience that differs from that opinion.

[Styrak]

and a brand new WE hopup (it is missing that little black plastic square though).

Yeaaaaaaah, that's kinda an important part...

Originally Posted by Sequential

With TM, it is not there but installing a TM hop-up unit with a metal outer barrel is painful as it is a very TIGHT fit. So tight that the TM hop-up unit won't slide out of the outer barrel easy.

Yes it definitely is there, it's just cast into the hopup unit, it's not a seperate piece.

[Sequential]

Originally Posted by jamuke

I hear you Sequential,

Though I have experience that differs from that opinion.

Depends on the type of brand gun you are using. TM screws with a TM grip shouldn't have a problem no matter how hard you tighten it. You will end up stripping the frame before you even tighten it to the point where it causes issues with cycling of the gun.

The small internals for the hammer assembly, if arranged properly and well lubricated should not jam up upon tightening down that part of the gun. The hammer/valve knocker assembly parts should be carefully inspected. Make sure the disconnecter parts can be pushed down a little bit without force. If its jamming, disassemble the assembly and ensure each part is positioned properly. The small spring in the disconnecter set could have been dislodged.

The main culprit causes cycling issues and the slide jamming half way is normally the front end of the gun. Something to do with the barrel, slide, hop-up and spring guide/bushing. The barrel in a WE is oversized, so it will not cycle properly with a stock TM plastic slide. Along with the spring guide and spring bushing.

If your blowback unit is having issues like a sticky nozzle then a full disassembly should be done on the rear end of the gun. The blowback unit screw for the piston head could have came loose over time from blowback shock. Hence why its always good to use a small application of blue thread locker on each screw for a handgun.

Hope this helps...

Originally Posted by Styrak

Yeaaaaaaah, that's kinda an important part...
Yes it definitely is there, it's just cast into the hopup unit, it's not a seperate piece.

Yup Styrak is right, it is casted on the TM hop-up unit. It's not removal-able hence why I said its really difficult to get a TM hop-up chamber back into a metal barrel without a little force.

[naminator]

Where can I find that tiny black piece and the screw that it needs.

I figured my hopup would come complete with everything I need but I was wrong apparently.

[Sequential]

Originally Posted by naminator

Where can I find that tiny black piece and the screw that it needs.

I figured my hopup would come complete with everything I need but I was wrong apparently.

Hmmm not sure, when most people need it...
Maybe fabricate one? Or find a TM one?

[naminator]

I tried fabricating the part out of machine screws and a washer, but that failed miserably. I can't seem to find anything that works for such a small component.

Any suggestions are appreciated (I would honestly buy that plastic piece and the screw for it in a heartbeat but I can't find it).

[Sequential]

Originally Posted by naminator

I tried fabricating the part out of machine screws and a washer, but that failed miserably. I can't seem to find anything that works for such a small component.

Any suggestions are appreciated (I would honestly buy that plastic piece and the screw for it in a heartbeat but I can't find it).

Were you the guy who had a hop-up unit that had stripped screws before? LOL.
Your new WE hop-up is just as bad isn't...

Yeah that little black thing, if someone would let me burrow one I could model it up on a 3d printer and print one for you.
How much would you pay for that little thing? I can see if I can have it made on a 3d printer...

[naminator]

It is a tiny part but i would pay 10 bucks. But unless i can find a screw for it it is useless.

And yeah the hopup has the sheared screw lol. The new hopup is great. But that piece is missing from it too.

[MultipleParadox]

OP :
I think I might have a We hopup chamber in a part gun I got with this piece

Not sure the hopup unit itself is any good but I'll check when I have some time to seen if it has this plastic part and screw

You can PM me for details