alma Posted September 16, 2014 Share Posted September 16, 2014 (edited) It looks like my TS hammer is following to half cock. The first occurrence was a week and a half ago at the last stage of a match. At this last practice session it was fine for the first 130 rounds or so but then started following with increasing regularity. I will take it apart and clean it out because its been awhile but what other advice could you offer? Edit: Already checked the overtravel and it is good. I backed it off another quarter turn just in case but it didn't make a difference. Edited September 16, 2014 by alma Link to comment Share on other sites More sharing options...
kneelingatlas Posted September 16, 2014 Share Posted September 16, 2014 Which hammer? Link to comment Share on other sites More sharing options...
alma Posted September 16, 2014 Author Share Posted September 16, 2014 (edited) CZC Race hammer. I might be able to take pictures of the engagement if it helps Edited September 16, 2014 by alma Link to comment Share on other sites More sharing options...
kneelingatlas Posted September 16, 2014 Share Posted September 16, 2014 So when you hold the trigger against the overtravel screw and thumb the hammer back and forth, it doesn't touch the sear? Link to comment Share on other sites More sharing options...
alma Posted September 16, 2014 Author Share Posted September 16, 2014 So when you hold the trigger against the overtravel screw and thumb the hammer back and forth, it doesn't touch the sear? no. I even backed it a bit further out to ensure that wasn't the issue Under normal circumstances I still say no but with the slide off if I push down on the cage I can just barely get it to contact. Link to comment Share on other sites More sharing options...
alma Posted September 16, 2014 Author Share Posted September 16, 2014 here it is. looks like the engagement has been rounded off on the hammer? Link to comment Share on other sites More sharing options...
smoothdraw Posted September 16, 2014 Share Posted September 16, 2014 you have to try that with slide on. it should not touch the sear. you have to back off your overtravel screw until the hammer and sear doesn't touch when you rock the hammer back and forth while pressing your trigger. Link to comment Share on other sites More sharing options...
alma Posted September 16, 2014 Author Share Posted September 16, 2014 you have to try that with slide on. it should not touch the sear. you have to back off your overtravel screw until the hammer and sear doesn't touch when you rock the hammer back and forth while pressing your trigger. i had done that in the past and backed it off further prior to the last range session just in case. Link to comment Share on other sites More sharing options...
smoothdraw Posted September 16, 2014 Share Posted September 16, 2014 that hammer has been barely touching the sear all this time is my bet. That is why it rounded. i don't know if you are willing to re-profile the hammer or just get another CZ hammer. Link to comment Share on other sites More sharing options...
kneelingatlas Posted September 16, 2014 Share Posted September 16, 2014 The hammer hooks do look a little round, how many rounds on that hammer? Link to comment Share on other sites More sharing options...
alma Posted September 16, 2014 Author Share Posted September 16, 2014 The hammer hooks do look a little round, how many rounds on that hammer? Not more than 2,000 Link to comment Share on other sites More sharing options...
kneelingatlas Posted September 16, 2014 Share Posted September 16, 2014 The hammer hooks do look a little round, how many rounds on that hammer? Not more than 2,000 I would send Stuart a message before throwing it away and buying a new one. Link to comment Share on other sites More sharing options...
alma Posted September 16, 2014 Author Share Posted September 16, 2014 thanks for the advice and help. It's all cleaned out now as well. There were a few brass shavings and the like back there so it's possible that a small piece of something was making it worse. I will test fire once more before moving forward. Link to comment Share on other sites More sharing options...
justaute Posted September 16, 2014 Share Posted September 16, 2014 Alma, If you continue to experience problems, PM me. I'm pretty sure I know what's causing it and have first-hand experience with the situation. thanks for the advice and help. It's all cleaned out now as well. There were a few brass shavings and the like back there so it's possible that a small piece of something was making it worse. I will test fire once more before moving forward. Link to comment Share on other sites More sharing options...
jon49erfan Posted September 16, 2014 Share Posted September 16, 2014 Even If it were something with the trigger adjustment, wouldn't the disconnector prevent the hammer from following? Link to comment Share on other sites More sharing options...
kneelingatlas Posted September 16, 2014 Share Posted September 16, 2014 Even If it were something with the trigger adjustment, wouldn't the disconnector prevent the hammer from following? No disco in a SAO CZ Link to comment Share on other sites More sharing options...
jon49erfan Posted September 17, 2014 Share Posted September 17, 2014 The trigger bar in this case. When the slide cycles, it disconnects the sear from the trigger. Link to comment Share on other sites More sharing options...
kneelingatlas Posted September 17, 2014 Share Posted September 17, 2014 Trigger bar doesn't touch the hammer, I guess I'm confused? Link to comment Share on other sites More sharing options...
BeerBaron Posted September 17, 2014 Share Posted September 17, 2014 I get what you're saying 49erfan. like in a 1911 as the slide cycles it hits the disco to disengage the sear from the hammer as it cocks the hammer and resets. in the case of a SAO CZ there is no disco (like we have in a DA/SA CZ) but the slide pushes down on the ears on the trigger bar as it cycles to act as the disconnector. but what happens when the hammer is work once the hammer is at full cock it slips off the sear and drops to half cock. this is probably due to the rounded hooks (sear looks somewhat less than sharp too). that is most likely cause by sear dragging on the hammer when the hammer is dropped. as the guys mentioned most likely overtravel was not enough and the sear was dragging on the hammer. the hooks can probably be re-cut if you send it back to CZC? Link to comment Share on other sites More sharing options...
alma Posted September 17, 2014 Author Share Posted September 17, 2014 I put the original TS hammer back in to get this gun back up and running for my match tomorrow. it is back to functioning normally even though the trigger is now about 6 oz heavier (still under 2 lb). I will revisit the CZC hammer during the off season. One thing that I found interesting is that it seems like the trigger rests a bit further forward with the stock hammer than the CZC one. That is a good thing for my since I have larger hands and could really use a longer pull on most guns. Thanks as always for the help. Link to comment Share on other sites More sharing options...
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