The Original CZ Forum
CZ PISTOL CLUBS => Curio and Relic CZs => CZ100 SERIES CLUB => Topic started by: ndeeya on November 16, 2002, 01:51:28 PM
-
GIVE THIS PAGE TIME TO LOAD... THERE ARE MANY LARGE PICTURES.
hi all,
by popular demand here are the pix and simplified instructions.
full instructions can be found here:
www.handgunreview.com/rev...z.html#100 (http://www.handgunreview.com/reviews/cz.html#100)
1. remove the slide from the gun.
(http://home.insightbb.com/~gosu/cz100/fix/1.jpg)
2. here are the things you will need:
-gun minus the slide
-1500 grit sandpaper (single or double sided) $.99 at hardware store
-cleaning rod that came with gun
-couple q-tips (for cleanup at end)
-scissors to cut the sandpaper
-double sided tape
(http://home.insightbb.com/~gosu/cz100/fix/2.jpg)
3,4. parts identification
#32 Trigger Bar
#39 Interrupter
#42 Trigger Bar Disconnector
at this point i encourage you to work the trigger at watch the whole mechanism at work. it is easier to understand why there is "gritty-ness" in the pull if you see where the major points of friction are.
points of friction:
between #32 and #39
between #32 and #42
once you see this, you will know where to sand/polish in order to eliminate/reduce the friction. in fact, you can stop reading if you now understand where the problem areas are and know how to fix them. otherwise read on.
(http://home.insightbb.com/~gosu/cz100/fix/3.jpg)
(http://home.insightbb.com/~gosu/cz100/fix/4.jpg)
5. first i cut a small strip of sandpaper about 1cm wide and 3cm long and started to polish the top of #32 paying close attention to the areas surrounding the interrupter (#39).
then i put a piece of sandpaper between #32 and #39, worked the trigger a few times, removed the paper, checked the pull, and repeated the last 3 steps.
(http://home.insightbb.com/~gosu/cz100/fix/5.jpg)
6. i then layed another piece of sandpaper on top of the other to effectively form a double-sided piece. in retrospect this could have easily been accomplished by just folding one piece of paper in half the long way.
-wedge the paper between #32 and #39
-work the trigger
-remove paper and check pull
-repeat
(http://home.insightbb.com/~gosu/cz100/fix/6.jpg)
7. if you find that when you work the trigger the sandpaper is only polishing #32 and not the underside of #39...
-wedge the paper btwn #32 and #39
-pull the paper out while pressing softly on the interrupter
-repeat
...this will ensure that the underside of #39 (where it meets #32) will get polished.
(http://home.insightbb.com/~gosu/cz100/fix/7.jpg)
at this point i recommend putting the gun back together and testing the trigger to feel for improvement.
8,9. construct a makeshift file/polishing tool.
using doublesided tape, make this: (too lazy to explain)
(http://home.insightbb.com/~gosu/cz100/fix/8.jpg)
(http://home.insightbb.com/~gosu/cz100/fix/9.jpg)
10. polish the underside of #42 where it "hits" #32
then polish #32 where it "hits" #42.
(http://home.insightbb.com/~gosu/cz100/fix/10.jpg)
11. extra bonus tip. polish the underside of the interrupter where it overhangs off #32 when the trigger is at rest.
(http://home.insightbb.com/~gosu/cz100/fix/11.jpg)
your shiny new Trigger bar (bling bling)
(http://home.insightbb.com/~gosu/cz100/fix/12.jpg)
hopefully you will use this thread as a STARTING POINT and guide. do not take my instructions word for word. each gun will have slight differences/nuances that will require you to modify my instructions. i don't make any guarantees implicit or explicit. follow these instructions at your own risk. if you aren't competent working with small delicate thinks (i.e. you are "ham-fisted") do not attempt this fix.
have fun, let me know if this helps.
cheers,
-a
-
Outstanding presentation ndeeya! Thank you very much!
-
Great pics! Here's my $.02...If you look back at the second-to-last pic, I extended the sandpaper all the way under the disconnector and worked the trigger back and forth for several minutes, changing the sandpaper a few times. This helped "round off" that area where it contacts the disconnector, and made it a little smoother in operation. Thanks, Ndeeya!
-
i forgot to mention to re-lubricate the surfaces with gun oil after polishing. this can easily be accomplished with qtips.
-
I did what you said, I sanded those areas, what a difference! Very smooth now!! Still the longest trigger pull I know of, but more predictable now and smooth as silk. Thank You.
-
How big is your resistance (I do not know the right word) of trigger now after this modification?
Lukas
-
Lukas,
Let me start off by saying that I do not have a drigger pull gauge. My method of determining the trigger pull of my pistol is limited by my lack of proper equipment and probably a lot of knowledge.
I filled up a plastic one gallon container with water. The water weighed 8.33 lbs. With the weight of the container included, let's call it 9 lbs. total weight. I lifted the water container with a string looped around my trigger. If I lifted the pistol very slowly, the trigger was pulled back just to the point before it would fire. If I lifted the pistol at about the same speed as I normally pull the trigger, the pistol fired.
I am sure someone here can point out the flaws in my crude system of measurement. If I had to guess, I would say my trigger pull is somewhere between 10 and 11 lbs.
Take it for what it is worth.
Good shooting,
Mike
-
is this the same mod as this http://www.czfirearms.us/index.php?topic=4152.0 ? if not what the differance ?