Author Topic: Modified SP01 reset issues, Disconnector issues.  (Read 15440 times)

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Offline schmeky

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Re: FIXED: Modified SP01 reset issues
« Reply #15 on: August 29, 2014, 07:58:00 PM »
Correct answers are $5.00.

Incorrect answers get a 20% discount.

Offline coolbox

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Re: FIXED: Modified SP01 reset issues
« Reply #16 on: August 29, 2014, 11:34:31 PM »
Schmeky, ofcourse. You can collect when we next meet..
Life is too short to waste on a bad trigger pull

Okla.Dave

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Re: FIXED: Modified SP01 reset issues
« Reply #17 on: September 20, 2014, 08:56:44 AM »
I had to call David to get this information, it worked.
Thanks David

A sticky on this would be helpful.

This should be a sticky

Offline coolbox

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Re: FIXED: Modified SP01 reset issues
« Reply #18 on: March 15, 2015, 07:57:59 AM »

In DA, while slowly squeezing trigger, if I just release the trigger (take pressure off, do not pull fully) back right before breaking point, it stays in SA mode, instead of the usual half cock mode. I can also hear a little click. I can repeat this and make it happen every time. I do not think I have encountered this before.

Well, while I did resolve the SA reset issue, I cannot resolve this DA problem one. Actually, I went back to OEM disco and FPB liftin lever. Now, today I had the chance to go back to custom stuff, from CGW, and I am facing the problem. And the problem reappears. This has been discussed on forum in one sense or the other, that the disco needs to be worked upon to solve the timing issue. But which part of disco for this problem? The problem, I repeat, is simply that the gun converts from DA to SA if I pull the trigger and stop a fraction before the point where the DA breaks. The SA hooks are engaged before the DA breaks.

I know CGW will get me sorted out, but I don't recall having heard this one before. So, waiting for comments, and a remedy!!
« Last Edit: March 15, 2015, 08:05:19 AM by coolbox »
Life is too short to waste on a bad trigger pull

Offline coolbox

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Re: FIXED AGAIN: Modified SP01 reset issues
« Reply #19 on: March 15, 2015, 02:21:48 PM »
Well I figured it out. It is solved finally!!

I removed material from the face of disconnector that is pushed back by the trigger bow. By removing material, the DA cycle completes before it gets to go all the way back to engage SA hooks. I am yet to check at the range, but dry fire was alright. While I was at it, I did change safeties to SP01 Shadow style.
Life is too short to waste on a bad trigger pull

Offline Stuart

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Re: FIXED AGAIN: Modified SP01 reset issues
« Reply #20 on: March 15, 2015, 02:43:18 PM »
Sorry, jumping in late.
Glad you got it working again.

Offline schmeky

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Re: FIXED AGAIN: Modified SP01 reset issues
« Reply #21 on: March 15, 2015, 10:14:15 PM »
Stuart,

Jump in any time you want.  I respect your input.

Offline coolbox

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Re: FIXED AGAIN: Modified SP01 reset issues
« Reply #22 on: March 16, 2015, 05:00:02 AM »
Stuart, Schmeky

Sirs,
Did I do it right? or was there any thing else that needed to be done?
Life is too short to waste on a bad trigger pull

Offline RickR

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Re: FIXED AGAIN: Modified SP01 reset issues
« Reply #23 on: March 20, 2015, 06:13:06 PM »
Stuart, Schmeky

Sirs,
Did I do it right? or was there any thing else that needed to be done?

I'm having the same issue what exactly did you do?

Offline coolbox

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Re: FIXED AGAIN: Modified SP01 reset issues
« Reply #24 on: March 21, 2015, 03:06:27 AM »
Stuart, Schmeky

Sirs,
Did I do it right? or was there any thing else that needed to be done?

I'm having the same issue what exactly did you do?

What issue do you have? I had 2 or maybe 3 issues. Below is what I did, quoting from above:


Well, as it turns out, schmeky was correct,as was mtops. The trigger bar was actually giving uneven pressure, and lifting unevenly. Left side was lifting up first. I bent it down using nose pliars.  It is fixed now, and there is no false reset. Below is the step by step fix from schmeky,


1. Remove the slide
2. Cock the hammer in SA
3. Push down on the trigger bar and at the same pull the trigger all the way back
4. The hammer should now be fully cocked in SA and you should be holding the trigger all the way back
5. SLOWLY let the trigger go forward and watch the 2 humps in the trigger bar - one will jump up sooner than the other
6. The one that jumps up first has to much "up" tension on the trigger bar support spring (#34)
7. Bend the #34 down at little at a time until both sides of the trigger bar pop up at the same time

I was doing step 3 all wrong. It has to be done as mentioned above. With the hammer cocked, press the trigger bar down, then pull the trigger all the way back with the bar still pressed down. Then once the trigger is all the way back, release the bar. Then move to step 4.


Should this fix be a sticky?


In DA, while slowly squeezing trigger, if I just release the trigger (take pressure off, do not pull fully) back right before breaking point, it stays in SA mode, instead of the usual half cock mode. I can also hear a little click. I can repeat this and make it happen every time. I do not think I have encountered this before.

Well, while I did resolve the SA reset issue, I cannot resolve this DA problem one. Actually, I went back to OEM disco and FPB liftin lever. Now, today I had the chance to go back to custom stuff, from CGW, and I am facing the problem. And the problem reappears. This has been discussed on forum in one sense or the other, that the disco needs to be worked upon to solve the timing issue. But which part of disco for this problem? The problem, I repeat, is simply that the gun converts from DA to SA if I pull the trigger and stop a fraction before the point where the DA breaks. The SA hooks are engaged before the DA breaks.

I know CGW will get me sorted out, but I don't recall having heard this one before. So, waiting for comments, and a remedy!!

Well I figured it out. It is solved finally!!

I removed material from the face of disconnector that is pushed back by the trigger bow. By removing material, the DA cycle completes before it gets to go all the way back to engage SA hooks. I am yet to check at the range, but dry fire was alright. While I was at it, I did change safeties to SP01 Shadow style.


This should help. if not, I would give CZC, CZ-USA or CGW a call or mail. Actually, I should have called them first too, but shared the problem is this would actually benefit others as well.
« Last Edit: March 21, 2015, 03:08:20 AM by coolbox »
Life is too short to waste on a bad trigger pull

Offline Tok36

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Re: FIXED AGAIN: Modified SP01 reset issues
« Reply #25 on: March 21, 2015, 04:10:33 AM »
Interesting thread.
coolbox, when you say " Face" of the Disco, what part of the disco are you talking about? The lower face of the wings when installed?

Will work for CZ pics! (including but not limited to all CZ clones)

Offline coolbox

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Re: FIXED AGAIN: Modified SP01 reset issues
« Reply #26 on: March 21, 2015, 05:14:30 AM »
When installed, the face forward one, when looking at the gun from the rear (like when aiming at a target). Its the one that would move back and forth with the trigger bar.
Life is too short to waste on a bad trigger pull

Offline cntrydawwwg

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FIXED AGAIN: Modified SP01 reset issues
« Reply #27 on: March 21, 2015, 09:05:15 AM »
I picked this pic up from Schmeky. I can't remember the thread, but it was very useful when I had to fit mine.

   And this thread helped explain what I needed to do. http://www.czfirearms.us/index.php?topic=61135.0
« Last Edit: March 21, 2015, 09:11:19 AM by cntrydawwwg »
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Offline Tok36

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Re: FIXED AGAIN: Modified SP01 reset issues
« Reply #28 on: March 21, 2015, 05:26:41 PM »
Got it, thanks guys. 
« Last Edit: March 21, 2015, 05:35:44 PM by Tok36 »
Will work for CZ pics! (including but not limited to all CZ clones)

Offline coolbox

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Re: FIXED AGAIN: Modified SP01 reset issues
« Reply #29 on: March 23, 2020, 08:59:58 AM »
Same pistol, SP01 safety model, similar problem, probably went unnoticed earlier.

With all the CGW parts, hammer, short rest disco, (oem sear), from fully decocked, I can fire double action, as well as only get the hammer to stay in half cocked position, if i dont pull the trigger fully back to the breaking point. Previouslt, I could get it to stay in SA position, which was fixed by working on the disco.

SA is fine. Half cock onwards is fine.

Need advise please.
Life is too short to waste on a bad trigger pull