Author Topic: CZ P-09 Second Pass - Polishing.  (Read 112 times)

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Offline Tok36

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CZ P-09 Second Pass - Polishing.
« on: November 09, 2018, 05:49:41 PM »
   Recently i got around to digging into my CZ P-09 FDE for its second pass. After shooting the P-09 stock for aprox. 500 rounds i had installed the full CGW Pro package parts without doing any other tuning. When time allows i prefer to just drop the parts in and shoot a pistol a bit, learn what i can and then go back in and do the polishing and further tuning on a second pass. Some of my CZs have been satisfactory after one pass. Others have benefited from 3 or more. For clarity, the CZs that require the most passes are the most fun because generally they allow me to learn the most. Sometimes i even wish some of my CZs would malfunction more often so that i would have a good reason to dig into them again. I may end up making some parts up to induce malfunctions so that i can lean more about them but i have not gotten to that point yet.

   Up to this point I have never had the same love for the Omega trigger system that i do for the classic CZ 75 variant trigger system. I am not as familiar with the Omega system and at this point. I do not really consider it an improvement over what came before. I recognize that in stock configuration the Omegas have been known to be better out of the box in some cases. Generally my CZs do not remain in stock config, they are far to fun to work on to be left alone. So the potential assets of the stock configuration are lost on me. I will continue to try and keep an opened mind and in time my opinion may evolve. I still believe that folks that are satisfied with a their CZ in stock configuration win big, no fuss and no added cost. However they do not get to have as much fun taking them apart.
   
   Out of the box and even once the upgrade parts were installed this P-09 had the worst Double Action i have encountered in a CZ. The DA was very heavy, it stacked allot throughout the DA pull and was quite stagey. The Single Action was alright in stock configuration. While it had some creep it was quite smooth, serviceable and easy to shoot. With the installation of the CGW P-Series hammer the SA creep was removed.

   The DA being my major issue, lets start with that. Using the P-Series tuning guide that Schmeky posted long ago (Linked below) i went after the trigger bar first. The P-Series single sided trigger bar arrangement differs from the 75 variants trigger two sided trigger bow. Due at least in part to its design and manufacture the P-Series trigger bar can shift and wrench against the side of the pistols polymer frame and negatively effect the DA pull. The issue seams to be the inconsistency of the side of the trigger bar that contacts the frame. As covered in the guide, to remedy this the trigger bar needs to be made more flat and consistent and then polished so that it slides across the frame during the DA pull rather than repeatedly jamming up. Reducing the tension on the trigger bar spring can also improve the DA and it only takes a few second to achieve.

With the assistance of my 75 Plus CZ pistol stand The P-Series trigger bar is removed.




The P-Series are a little faster to disassemble than a factory 75 variant. In a few minutes you can take an assembled pistol and turn in into an explosion of parts.




The factory P-09 Trigger Bar close up.



The P-09 Trigger Bar after a bit of sanding against a flat surface. As you can see this trigger bar was far from flat.



   After much materiel removal, polishing and deburring of the sharp edges the trigger bars is finished. I used only sand paper on this pass, 400, 600, 1K, 2K grit. The 2K sandpaper brought the finish close to a mirror shine, polishing compound did not seem necessary but time will tell.



   On to the trigger bar roller. The P-Series roller diameter and concentricity can significantly effect the DA. At this point i have only a limited understanding of the rollers impact on the lock work. My roller had consistent wear marks all around the roller. I checked its roundness and gave it a polish, again sand paper only on this pass. Polishing a round object of this size was a first for me within CZ tuning, i needed to maintain the rollers roundness so i made a jig for my Dremel out of some brass rod, mounted the roller onto it and polished it up. Here are some pics.






   I tried out a sanding tip that Schmeky posted in one of his guides. Sandpaper strips, one end taped to a reversed Dremel bit. With the sand paper rolled up around it so that once the paper is worn out you can tear off the outer layer and go back to work with the fresh layer underneath. This worked well and saved me some time.



   The pins were up next. Trigger Pin, Hammer Pin, and the Sear Pin. These are straight forward, chuck them in a Dremel or a drill for the larger diameter pins and polish them up. One of the assets of shooing a CZ a good bit before you do the polishing is the marks that use leaves on the parts, these marks can tell you allot in some cases. Note that some of the sharp edges where the diameter of the pins change need to remain sharp. The step down at the center of the P-Series trigger is a good example of this. I polished more of these pins than is likely necessary. Please review the guide linked below.

Pins before.





Pins after.




   Now for reassembly. I run the decocking lever in my P-09 and this can be a tricky part of the reassembly. In the past i had just winged it and fought with the process of tucking the decocker spring leg into place. This time around i made a tool as fourm member JoeL has suggested in the past in his videos (Linked Below). It made the process more easily achievable. Glad i took the time to make one.





   All said and done the second pass on this pistol significantly improved the DA pull. Before this process the sights moved every time i pulled trough the DA regardless of the speed i pulled the trigger or how much i concentrated on avoiding it. After this pass the sights no longer move unless i am slacking. Its still not as smooth as a well tuned 75 but it is getting there. With some use i believe that it may continue to smooth out. I bit of lube in not a bad idea ether.
 
   The DA was my biggest gripe with the P-09, i guess i have less to complain about. Even though it is not a 75 variant. In time me and this pistol might just become friends. Not good friends mind you, my 75s would not have that:) I also learned some things about the Omega trigger system. While i have much more to learn about the P-Series it is a step in the right direction.

If you are motivated to work on your own CZ P-Series pistol please take the time to review the guides produced by other forum members linked below. I have been over them many times and continue to benefit from them.

How to Tune, Smooth and Upgrade the P-07/P-09
https://czfirearms.us/index.php?topic=66147.0

JoeL's P-Series Videos.
https://czfirearms.us/index.php?topic=63210.0
« Last Edit: November 11, 2018, 08:37:10 PM by Tok36 »
Will work for CZ pics! (including but not limited to all CZ clones)

Offline Earl Keese

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Re: CZ P-09 Senond Pass - Polishing.
« Reply #1 on: November 09, 2018, 06:07:07 PM »
Great write up! I sold my P-09 some time ago and my wife's P-07 doesn't require any more polishing. That said, I enjoyed reading this, thanks!

Offline dc581

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Re: CZ P-09 Senond Pass - Polishing.
« Reply #2 on: November 09, 2018, 08:10:32 PM »
Nice! I also have the 75 plus stand and used Schmeky's guide and Joe's videos to polish and install the Pro kit in my 09 and 07. I love the improved trigger and function in both firearms!

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Offline SoCal

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Re: CZ P-09 Senond Pass - Polishing.
« Reply #3 on: November 10, 2018, 07:25:39 PM »
Great write-up, and a good read, thanks.
If I had known how much better being retired is than working I would have done it FIRST.

Offline Tok36

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Re: CZ P-09 Second Pass - Polishing.
« Reply #4 on: November 10, 2018, 08:23:29 PM »
Added some things, fixed some spelling and grammar mistakes, not all of them, that is unlikely to ever happen.  ;D

Thanks guys, glad you enjoyed the read. May your CZs run flawlessly.
Will work for CZ pics! (including but not limited to all CZ clones)

Offline Sunset_Va

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Re: CZ P-09 Second Pass - Polishing.
« Reply #5 on: November 10, 2018, 08:57:07 PM »
Interesting mods, Years ago, I thought nothing about total dissassembly of any gun, but lately, it seems to be a big undertaking.