Quote:
Originally Posted by ILLusion
Part of the art of gunsmithing is being able to see what's wrong and what's out of place the moment it's looked at. [snip to save forum space]
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Hey Brian,
Thanks for the reply. I believe I nailed the problem down to the barrel lug is because of these reasons:
I tried inserting JUST the slide (not BBU or barrel) onto my lower frame and the slide can run along the rails of the lower frame smoothly.
I then insert the BBU only into the slide and repeat the process. I used to have the slide getting a lot of friction on the last bit of the lower frame rails where the sear disconnecter and hammer reset bits are popping out, but I've since fixed this with some heavy filing of the BBU unit since it's much easier to do than trying to file the insides of the slide. The BBU + slide now can slide front and back from the lower rail frames easily.
I insert the chrome barrel into the gun and without the magazine in the gun it cycles, although I can tell that the rear barrel lug is rubbing onto the top of the barrel (will state why later). When I insert a magazine into the gun, the slide can still be cycled manually, but as soon as I fire the gun it starts jamming up as soon as the top of the barrel disappears into the slide. Pulling the slide backwards is really hard to do (encountering massive friction) and pushing it forward (as if to clear an out of battery malfunction) is slightly easier and is actually the only way to fix the problem.
I install a Bell 1911 metal barrel or the PGC metal outer barrel for the MEU kit into the gun and the gun cycles fine, even with the magazine in it. In fact, I can pop off 18 shots with the slide locking back just like my old plastic bodied MEU with the guarder spring (I find the guarder spring too stiff; the Hurricane one is 'springier' and that is the recoil spring I'm using at the moment). The PGC and Bell 1911 barrels also make the slide cycle smoother manually than with the Hurricane chrome barrel, hence I believe that the chrome barrel, although it allows me to manually cycle the slide, is nevertheless rubbing against the top of the slide.
I believe the chrome barrel has a problem whenever the hop up chamber shifts around during the gun's firing operation as the jams onto happen when I fire the gun with the gas propellant to cycle the slide. I had some inconsistent results with the slide actually functioning without a jam with the chrome barrel installed, but the gun only cycled once or twice before the jams happened again.
Anyway, I know it's hard to diagnose via internet forums and I may have been somewhat asking for too much in my previous post, but I just wanted to confirm whether my suspicions were correct on where the issue of my gun with the chrome barrel lied. Thanks again for your response btw :P I have since given the gun to a gunsmith in HK to fix the barrel problem as I believe my problem requires a dremel to fix rather than labouring through filing down the barrel lug with a metal file or sandpaper. I had initially thought this would be a quick and easy confirmation of my diagnosis since you said you had encountered the same-ish problems with the four Covert II kits you had installed for customers :P Thanks again for the reply! XD