Author Topic: Fitting the .22LR Kadet kit  (Read 4278 times)

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VictorLewis

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Fitting the .22LR Kadet kit
« on: May 25, 2001, 05:51:01 PM »
From our former home, just in case, for the benefit of those who are new. Edited from the original.:)
           
            Need I mention to safely UNLOAD the gun before proceeding?:)  Field strip your gun and clean it. Be sure to clean between the slide rails, just above the hole where the slide stop pin fits through. Make sure it is dry, and free of oil. Alcohol and Q-tips should work fine.
           
            If your kit needs any fitting, you will need some electrical tape, and a SMALL, fine file. Make sure it has a clean edge. That means it only has teeth on the broad portion of the blade, and not the thin edge which will scraping along the underside of the barrel. Teeth which are too coarse will not allow for the proper 'little-bit-at-a-time' removal of metal. The use of a vise w/protected jaws would also be helpful.
           
             Separate the kit's small skeletonized 'slide', recoil spring and guide from the kit's solid 'upper'. Clean them, especially the large blocky lug under the chamber of the .22's barrel, then reassemble. The upper portion containing the barrel remains fixed on the frame. The smaller slide is the part which moves normally. Before proceeding, you should now try to fit the kit into place. It 'may' just slide right on. That bottom lug of the barrel has to slide between the frame rails enough for slide stop pin hole to align with those on each side of the frame. A slight nudge of the top-end to the rear, using only hand pressure, may be enough. If not, then read on.
           
             Look at the bottom lug of the .22 barrel, on its left side. To the left of the slide stop's pin hole, you will note a small rectangular shaped facet at the leading edge of the lug itself. That little 'shelf' is raised up from the surface of that side of the lug. It is ONE of the TWO areas that may possibly need to be filed to fit. The other is the two stubby little slide rails at the muzzle end of the kit. On mine, the little shelf stuck out too far to allow for the lug to slide far enough into the frame. The two front rail-stubs of the kit's upper were not even close to engaging the forward edge of the frame's rails.
           
            Tape a piece of black electrical tape to the large flat portion of the lug's left side, over the hole. You should also tape the portion of the barrel above the lug. This will protect from any 'slips' with the file. Ideally, you should place the unit upside down in the vise for stability, but you can use care 'free-handed'.
           
            Begin making passes across that little shelf, making sure to keep the file parallel with the side of the lug itself. IOW, don't create a 'curve' out of a flat. One or two passes at a time, in each direction, is all you should do. Let the file do the work, don't bear down on it. After each series of passes, swab off the metal dust with the alcohol and Q-tip. Be sure to get it out of the pin hole, too. Then, reassemble the upper and try to slide it onto the frame. Lather, rinse, and repeat as necessary.:)  
           
            The lug should slide in far enough to allow the front rail 'stubs' to engage the front leading edge of the frame rails. It may appear that the rail stubs need some dressing also; but, be careful. The idea is not for the whole unit to slide on effortlessly, like the centerfire slide does. Remember, the upper remains fixed to the frame. If the fit is nice and tight, it will keep the barrel in the same place for better accuracy. Don't be afraid to nudge the muzzle(barehanded) in order to seat it the rest of the way into place on the frame. As long as the hole in the lug lines up with those in the frame, you are OK. With my kit, the stubs did not need to be dressed at all, just that little facet on the lug. Gentle thumb pressure seats it into place on the frame.
           
            Remember, you must retract the skinny slide just like usual, and align the witness marks in order to insert the slide stop pin. After you install the stop, you want to check all the functions. Does the safety work with the hammer cocked? Can you maually lock the .22 slide open? Does it lock open on an empty .22 magazine? If everything checks out, take it apart once again for cleaning. Make sure you get all that fine metal dust off of everything!
           
            Please feel free to add your own experiences below.
           
            Take Care!
           
           

Stephen-Camp

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Fitting the .22LR Kadet kit
« Reply #1 on: May 25, 2001, 07:26:18 PM »
Hello, VictorLouis.  Thanks for such a detailed report!  Hopefully, it can be archived and ressurected as
            needed.  Fine job.
           
            Thanks and best.

polemis

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Fitting the .22LR Kadet kit
« Reply #2 on: June 01, 2001, 02:00:49 PM »
Victor, I received my Kadet .22lr kit yesterday. This afternoon, I fit it to my CZ85B and it all went together, tightly, without any filing. The front rail "stubs" got a shine on them from working it on and off a few times (polymer coating worn off), but I didn't need to file them.
           
            I loaded a magazine with ten dummy .22lr rounds (actual Federal dummy rounds), and cycled the mechanism to see how things worked.
           
            The first round would not feed in, so I pried it with a flat popsicle stick to raise it up, and it fed. The subsequent rounds fed and ejected (no firing, of course), but the last round would not leave the magazine. Also, I could not engage the safety. I think there was something funny about the slide release as well.
           
            I phoned CZUSA, but they appear to be away today, so I'll try them next week. Mike had told me he'd walk me through the installation over the phone.
           
            Can you come up with any ideas for me on this? I'm not going to fire any live ammo until I've either spoken with Mike, orl I can get the gun to operate properly with the dummy rounds.
           
            --Spiros

Offline shiroikuma

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Fitting the .22LR Kadet kit
« Reply #3 on: June 01, 2001, 03:18:37 PM »
Did you get two mags with your Kadet kit?  If so did you try both mags?  If it's not a mag problem you'll have to send it to the factory.
           
            If if was me I'd just go try shooting it.  The problems you describe don't sound like anything that would make it unsafe to shoot, with the exception of the failure to engage the safety.  I don't have a clue why that won't engage.  You may have a unit with something wrong.  Read the directions that came with it again and install it a couple of times.  I'm wildly guessing if it not a lemon that it wasn't installed correctly or the mag is a lemmon.  Of course I dont' think you could get the dummies to feed if it was installed incorrectly.
           
            shiro

polemis

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Fitting the .22LR Kadet kit
« Reply #4 on: June 03, 2001, 03:14:13 PM »
Shiro, I fiddled more with it and I found that I had failed to push the first round back into the magazine enough (dummy round). So when it came to the last round in the magazine (the first I had put in at the bottom of the stack), she wouldn't feed.
           
            Anyway, I took the thing apart and reinstalled a few times. It gets easier. Everything works perfectly. I loaded five CCI standard velocity rounds -- worked fine.
           
            The only slight problem is when I put the barrel/slide combo onto the grip. I have to be perfectly accurate how far back or forward it is. If the slide release shaft hole doesn't line up perfectly, the slide release won't go in. No tools necessary to adjust it -- just push a tad, one way or the other. Safety works fine, as does everything else!
           
            Also, I didn't need to file a thing.
           
            Now I want to try some subsonic ammo in there (slower than the CCI SV. Any idea if sub sonics will cycle the gun?
           
            Thanks for your help . . .
           
            --Spiros

Offline shiroikuma

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Fitting the .22LR Kadet kit
« Reply #5 on: June 03, 2001, 03:41:16 PM »
Your kit sounds normal to me.  I have to watch lining up the holes to but it's not a big deal.  I've never tried subsonic .22 so I dont' know if they will function correctly.  If they don't you are only out $2.50 or so and will have to hand cycle them until you use them up.
           
            If you try it tell me if they are much quieter or not.  I use bulk packs of copper plated .22 lr s because I like them cheap and plated so I don't get lube and lead all over my hands.  It's worth an extra $1-2 per 500 rds for me.
           
            shiro

VictorLewis

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Fitting the .22LR Kadet kit
« Reply #6 on: June 05, 2001, 06:26:15 AM »
Now we have another member who didn't need to 'fit the kit'. The subsonic won't work. Not enough oomph to cycle the action. It's not noticeably quieter because you still have the crack of primer. It's best in a suppressed gun, with the bolt or slide held closed while firing. That way, ALL of the sound is forced through the 'can' and gets muffled.

polemis

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Fitting the .22LR Kadet kit
« Reply #7 on: June 05, 2001, 09:06:12 AM »
Thanks, it's the sound I was trying to minimize for the neighbors' sake. But SV .22lr is still quite a bit less noisy than 9mm Luger; less smelly and dirty as well!
           
            I shot hand-held at a dead tree trunk 25 yards away and the four bullets fell into a 3" group.
           
            Spoke with Mike at CZUSA who guided me in the firing pin removal (I have the chisel pin), and he said the allignment of the holse for the slide release pin was normal. Over time the fit will loosen up a bit which will make it easier.
           
            --Spiros

Offline shiroikuma

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Fitting the .22LR Kadet kit
« Reply #8 on: June 18, 2001, 02:27:00 AM »

           
            shiro

VictorLewis

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Fitting the .22LR Kadet kit
« Reply #9 on: June 18, 2001, 03:08:08 PM »
That's a great photo post.:)

Offline shiroikuma

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Fitting the .22LR Kadet kit
« Reply #10 on: June 18, 2001, 09:08:16 PM »
Thanks VL! ;)

 

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