eerw Posted June 7, 2016 Share Posted June 7, 2016 (edited) any change in sear? any chance you still have the factory trigger pin? also you said only happened after you changed the hammer. did you have all the other parts installed, and gun was functioning fine? then changed the hammer? thanks Edited June 7, 2016 by eerw Link to comment Share on other sites More sharing options...
vtecpaoche Posted June 7, 2016 Share Posted June 7, 2016 (edited) I started filing on the sear that contacts the safety but changed to file on the safety instead. I still have the factory trigger pin. It was functioning fine before swapping the hammer. The other parts were functioning fine before swapping the hammer. After swapping the hammer, the only changes were to the sear and safety where I removed just enough material for the safety to engage. One other thought was that while fitting the safety, I could not pull the trigger in SA even if the safety was no engaged. Maybe I took just enough material off the safety so that it can engage but not enough for the sear to allow the hammer to slip in SA. Would that be possible? Edited June 7, 2016 by vtecpaoche Link to comment Share on other sites More sharing options...
vtecpaoche Posted June 8, 2016 Share Posted June 8, 2016 Update on my issue. I took just a little bit more off the safety and the hammer drops on SA now. Link to comment Share on other sites More sharing options...
Tok36 Posted June 8, 2016 Share Posted June 8, 2016 Update on my issue. I took just a little bit more off the safety and the hammer drops on SA now. Glad you found a fix, thank you for the update. Link to comment Share on other sites More sharing options...
Brucenterry Posted August 14, 2016 Share Posted August 14, 2016 Thanks for everyone's input on tuning a CZ. I bought an SP01 (w/ D'Cocker) after shooting a friends who had it worked on by CGW. I called CGW and they recommended the Pro-Package since I want to shoot Production. After reading and watching video's, I've successfully polished and installed all the parts. I don't have a trigger pull gauge, but I'm extremely pleased w/ the SA pull weight but wish I could get the DA just a little lower. I know going too low on DA can cause light primer strikes but what can I polish/replace to reduce the DA weight a little more? Thanks in advance, Bruce Link to comment Share on other sites More sharing options...
biglou13 Posted August 14, 2016 Share Posted August 14, 2016 (edited) what # hammer/main spring are you running? i polished hammer strut but didn't feel much difference. not really a solution but i dry fire frequently with 13.5# spring. but go to range with 11 or 8.5 i feel like the 8.5 is too light and find myself discharging when prepping next thing is to shoot D/A with a timer Edited August 14, 2016 by biglou13 Link to comment Share on other sites More sharing options...
bowenbuilt Posted August 14, 2016 Share Posted August 14, 2016 I think the Pro Package comes with a 13# main spring. I guess he could go to the 1200 spring (11.5) and adjust the trigger bar spring for the absolute lightest if all the polishing has been done. Link to comment Share on other sites More sharing options...
Brucenterry Posted August 15, 2016 Share Posted August 15, 2016 (edited) Biglou13...Yes, I have the 13# hammer spring that came w/ the Pro package. Maybe I'll try the 1200 (11.5#) to see if I get light strikes. bowenbuilt....what adjustments need to be done to the trigger bar? Edited August 15, 2016 by Brucenterry Link to comment Share on other sites More sharing options...
biglou13 Posted August 16, 2016 Share Posted August 16, 2016 (edited) I know some people run the 8.5 spring and have no issues. I have all three. I did have some light strikes with 8.5 but I think it was a bad batch of primers. I like the feel of 11.5 and never had light strikes for any primers , so far As far as I know and did .....trigger bar.... Standard polish job.... also look where the trigger bar spring rides the trigger bar. I did most of Trigger bar polish with a high grit stone. Lt wt trigger spring will drop pull easily .... Plus there is that new trigger spring.... Edited August 16, 2016 by biglou13 Link to comment Share on other sites More sharing options...
Maxamundo Posted September 23, 2016 Share Posted September 23, 2016 just wanted to thank all the contributors to this thread Link to comment Share on other sites More sharing options...
SergioSF Posted September 23, 2016 Share Posted September 23, 2016 On 8/14/2016 at 4:57 PM, bowenbuilt said: I think the Pro Package comes with a 13# main spring. I guess he could go to the 1200 spring (11.5) and adjust the trigger bar spring for the absolute lightest if all the polishing has been done. Can anyone please elaborate on that? How do you adjust the trigger bar spring? Thanks! Link to comment Share on other sites More sharing options...
vtecpaoche Posted September 24, 2016 Share Posted September 24, 2016 22 hours ago, SergioSF said: Can anyone please elaborate on that? How do you adjust the trigger bar spring? Thanks! You'll have to go thru this thread. Link to comment Share on other sites More sharing options...
SergioSF Posted September 24, 2016 Share Posted September 24, 2016 Aha thanks! Some good reading there. Link to comment Share on other sites More sharing options...
Blue Jacket Posted November 7, 2016 Share Posted November 7, 2016 New question for Kneelingatlas or any of the other CZ experts. I have seen a couple of exploded views that show 2 safety detent springs one the right as well as left. Which is correct? Just a single on the left? BTW Its a standard SP-01. I know I put two in when I last had it apart last time, but getting that right one in about drove me craze. I will be putting in a CGW Type 2 Disconnector so it will be coming about again and I just wanted to make sure on that spring since it was soo difficult. Thanks Link to comment Share on other sites More sharing options...
kneelingatlas Posted November 7, 2016 Author Share Posted November 7, 2016 There are two kinds of ambi safeties on CZs: "D Style" and "Tumbler Style", the SP01 comes with the D style, the 75B SA comes with the tumbler style. The tumbler style has two spring detents, the D style only has one spring loaded detent on the left side and a little tab without a spring which hooks under the right side safety Link to comment Share on other sites More sharing options...
GringoBandito Posted January 19, 2017 Share Posted January 19, 2017 This is an awesome post! Thank you Kneeling Atlas!! I stumbled across this thread after buying an SP01 and CGW production legal kit. I Ended up with a nice 2.5 LB SA trigger but the DA is still pretty stiff at 8+lbs..It is smooth but is just a stiffer trigger than what I anticipated. I did all of the polishing as listed in the thread...I am wondering if I missed something that effects the DA pull weight? Link to comment Share on other sites More sharing options...
Tok36 Posted January 19, 2017 Share Posted January 19, 2017 42 minutes ago, GringoBandito said: This is an awesome post! Thank you Kneeling Atlas!! I stumbled across this thread after buying an SP01 and CGW production legal kit. I Ended up with a nice 2.5 LB SA trigger but the DA is still pretty stiff at 8+lbs..It is smooth but is just a stiffer trigger than what I anticipated. I did all of the polishing as listed in the thread...I am wondering if I missed something that effects the DA pull weight? What weight hammer spring are you running? Installing a reduced weight hammer spring can reduce the DA significantly. Link to comment Share on other sites More sharing options...
teros135 Posted January 19, 2017 Share Posted January 19, 2017 6 hours ago, Tok36 said: What weight hammer spring are you running? Installing a reduced weight hammer spring can reduce the DA significantly. Also a reduced-weight trigger return spring. Link to comment Share on other sites More sharing options...
GringoBandito Posted January 19, 2017 Share Posted January 19, 2017 Thanks for the replies. I am using the springs that came with the CGW kit...The hammer spring is blue and the TRS is the reduced power spring. Link to comment Share on other sites More sharing options...
Tok36 Posted January 19, 2017 Share Posted January 19, 2017 (edited) The Blue CGW hammer spring is 13#. The CGW 11.5 Hammer Spring is worth a try. It is the lowest you can go without significantly limiting your primer type. Edit: in some cases the 11.5# hammer spring can fail to set off the hardest primers, every CZ pistol tunes up a little different. Breaking the pistol in well even after all of the polishing can lead to some small reduction as well. A second pass on polishing is also an option, it is not uncommon that i find some things i missed on the second pass, but this may not add up to a significant reduction. Out of these things i believe the hammer spring has the potential to offer most significant reduction. CGW 11.5 Hammer Spring (Black) https://cajungunworks.com/product/hs-12000-black-11-5-hammer-spring/ Edited January 19, 2017 by Tok36 Link to comment Share on other sites More sharing options...
anonymouscuban Posted April 7, 2017 Share Posted April 7, 2017 Thanks to everyone who contributed to this thread, especially Prof. Atlas.I've been on the fence on doing some mods on my SP-01 on account of all this being really new to me but thanks to this thread I just placed an order for the CGW ultra lite kit and the 13# recoil spring. Gonna do some of the polishing describe in this thread too.Sent from my SM-G930F using Tapatalk Link to comment Share on other sites More sharing options...
henricvs Posted April 15, 2017 Share Posted April 15, 2017 HELP? First, thank you for posting such good information. It made my installation go pretty smoothly. My trigger is fabulous, but my safety will not engage. I think that the new hammer pushes the sear further such that the little hook obstructs the safety from turning. Should I file the hook, the safety or the sear? Or am I doing something wrong? Link to comment Share on other sites More sharing options...
clw42 Posted April 15, 2017 Share Posted April 15, 2017 50 minutes ago, henricvs said: HELP? First, thank you for posting such good information. It made my installation go pretty smoothly. My trigger is fabulous, but my safety will not engage. I think that the new hammer pushes the sear further such that the little hook obstructs the safety from turning. Should I file the hook, the safety or the sear? Or am I doing something wrong? You can fit the safety where it engages the sear assembly (easier but more costly if you mess up) or you can fit the sear assembly where it engages the safety (less costly if you mess up, but more of a PITA). Link to comment Share on other sites More sharing options...
kneelingatlas Posted April 15, 2017 Author Share Posted April 15, 2017 44 minutes ago, henricvs said: HELP? First, thank you for posting such good information. It made my installation go pretty smoothly. My trigger is fabulous, but my safety will not engage. I think that the new hammer pushes the sear further such that the little hook obstructs the safety from turning. Should I file the hook, the safety or the sear? Or am I doing something wrong? It's not uncommon for the safety to need some fitting when you install a new hammer, you can file on the safety or the safety leg of the sear, most people file on the sear because it's cheaper to replace if you go too far. It's a delicate process where not enough and too much are only a few thousandths apart; if you're not comfortable with the tedious process of trial fitting Cajun Gun Works makes an adjustable sear for this application: https://cajungunworks.com/product/as-b/ Link to comment Share on other sites More sharing options...
henricvs Posted April 15, 2017 Share Posted April 15, 2017 2 hours ago, clw42 said: You can fit the safety where it engages the sear assembly (easier but more costly if you mess up) or you can fit the sear assembly where it engages the safety (less costly if you mess up, but more of a PITA). Thanks! That confirms my thoughts. I've ordered an adjustable sear, but I'm going to try to fit this one first. Link to comment Share on other sites More sharing options...
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