Author Topic: SP-01 Phantom disassembly and reassembly  (Read 67876 times)

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Offline PTGT_Neon

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SP-01 Phantom disassembly and reassembly
« on: August 12, 2010, 04:30:59 AM »
Disassemble the Phantom

This is an informative page only.  I'm showing all the dangerous things I do with my dangerous toys.  I am not responsible for the actions of others.

Basic working space.  A hammer and one 2mm punch and 3mm punch.  A simple piece of plywood with some holes drilled through it laying on the floor is what I use.




First I want to show the P-01 slide stop in the Phantom.  It doesn't protrude.  Of course this means I need a tool (philips head from swiss knife) to pop it out.  







The two slide stops side by side.  




I cut back the bulbous end a bit to make some clearance for the slide.  It fit without, but it looked really tight.

Remove the mainspring:


I am currently using a 15 lb main spring with extended firing pin for reliable operation.

Lift the sear spring with a small tool and pull the decocking lever out.



Next, knock out the 2mm pin:



2mm trigger pin:



3mm hammer pin:



pins out:


Note the trigger return spring is about 85 degrees.  90 seemed too weak.

Action assembly pulls right out.  Wait!  Is this a Tokarev?  HA! Not even close!



Open Pandoras box and push the pin out.  It just pushes out.  no need to hammer it:



Here's the mess:

You'll notice there isn't a firing pin block lifter.  That's my choice.  CZcustom sells a spacer that takes its place.

Here's my iteration of the sear angle business:



I forgot to photograph the contact area where the trigger bar meets the trigger bar return spring.  The trigger bar spring contact area on the trigger bar should be polished pretty smooth so that there isn't any creep during take up.  

Also, notice the strut that goes through the main spring (hammer spring).  I sanded the corners smooth so the DA is smoother.  It works.  the spring doesn't make popping noises as I pull the DA.  The mainspring plug can also be tapered and polished on the inside to reduce the popping of the mainspring.  All this helps.  It really does.  The Phantom seems much more sensitive to the quality of friction surfaces that my other steel bodied CZ.

Do what this photo says.  It is very wise.






I have modified my sear and decocker springs:


This not only improves trigger pull a great deal, but it also eases the assembly quite significantly.

Polish the contact areas or God kills a kitten!



The hard part!
Put it together like how it is in the picture.  Fat stubby fingers need not apply.  This can be very frustrating the first time.  Pay attention to how the decocking lever thingie is positioned.  If you get it wrong and assemble the whole thing, its all got to come apart again.  Get that right first.  then put the sear in, then slide the decocking lever spring in there.  Don't worry about getting the spring sprung.  Sprunging the spring will occur later.





Get that sear spring in there!  Easier said than done.  



Continue through to the other side (spacer in place of firing pin block lifter):



Replace the pin with a dummy pin.  I think this was once the trigger pin.  Use whatever works:



Here is the assembly upside down.  Note the position of the decocking lever spring.  This is not where it is suppose to be.  But doing it this way is the easiest way.



Now use a tool (I use the small blade from my pocket knife) to pull the leg of the spring around the leg of the decocking lever.

note the position of the spring leg.  Again, easier said than done.

Assembly sequence.  Do it right and you get a cookie:






Push the rounded end of the pin in first.  That's what it's there for.


Replace the 2mm and 3mm pins:


This is how do the trigger pin.  I knock the pin in place just a little bit.  This way I can hook the trigger return spring onto it and then hammer it back in:


Cake:



And that's all there is to it!  

I'll come back with some more tidbits on stuff later.
« Last Edit: August 12, 2010, 04:10:02 PM by PTGT_Neon »

Offline Stuart

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Re: SP-01 Phantom disassembly and reassembly
« Reply #1 on: August 12, 2010, 09:40:40 AM »
Very nice how-to.
thanks for taking the time to share this.

Offline Guitarguy

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Re: SP-01 Phantom disassembly and reassembly
« Reply #2 on: August 12, 2010, 01:22:55 PM »
Fantastic!  Good Job! Give the man a Cookie! Thank you!
This is why I came to the Forum. Amazing.
CZ 75B SA, 75B Steel Compact w/ rail, 1992 Pre B.

Offline eth77

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Re: SP-01 Phantom disassembly and reassembly
« Reply #3 on: August 14, 2010, 09:19:36 AM »
It's great tutorials like these that make owning weapons fun!

I sort of cheated, I started gunsmithing on a Steyr M40-A1, it's somewhat simpler a DAO, striker-fired semi.

Gunsmithing is addictive. Tuning becomes an obsession, or is it the buying of cool tools? No, 'cause I make some of my tools, it's the tuning.

I promised my wife, as soon as I'm through tuning the K31, I'll retire from tuning. Like she believes that... ::) ::) ::)
Liberty, it starts with self ownership. You own you. Everyone owns themself. The essence of freedom and liberty is to allow everyone to pursue THEIR idea of life, liberty, and the pursuit of happyness. In doing so, they may not violate your right to the same goals. Thus All crime is property crime.

Offline sparks701

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Re: SP-01 Phantom disassembly and reassembly
« Reply #4 on: August 14, 2010, 05:15:22 PM »
Great pics and discription, now I have to work up the courage to give it a try. ;). That would be really tough without the pics to help. Thanks PTGT Neon.
Doug

Offline PTGT_Neon

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Re: SP-01 Phantom disassembly and reassembly
« Reply #5 on: August 14, 2010, 05:57:15 PM »
I'm glad I could help!  It wasn't easy figuring it all out.  I've done it enough times to make an error at every step, which results in taking it all back apart again. 

I plan on doing some more pictorials on the sear and hammer engagement as well as the competition hammer.  I bought a comp hammer and fitted it to my Police model for the time being. It was a lot easier than grinding out the RSA trigger group to use the factory safety lever on my PSL. 

Offline Xfire68

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Re: SP-01 Phantom disassembly and reassembly
« Reply #6 on: August 14, 2010, 08:33:47 PM »
Thanks Neon! What a great writeup and pictures! Also thanks for the PM's to help me out! I have taken my brother Phantom apart no less then 6 times now and have it down pretty well! ;D

Offline T-bolt

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Re: SP-01 Phantom disassembly and reassembly
« Reply #7 on: September 12, 2010, 03:42:56 PM »
 Neon,

Thanks for the post, the pics, and the help!

Couple of comments for others considering tackling this:
1.  The parts look much larget in the pictures than they actually are :)
2.  Pay very close attention when you take it all apart - there are a bunch of little things that don't seem all that obvious a couple of hours later :-[

The trigger sure feels smoother.  Glad I decided to do it, and can't wait to get to the range!




Offline Tripps33

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Re: SP-01 Phantom disassembly and reassembly
« Reply #8 on: June 14, 2011, 02:05:55 PM »
Neon, what do you mean but borderline full auto?  Does that mean it will fire the entire magazine without stopping? Or that it will take very little effort to pull the trigger?  I wouldn't want to make my gun dangerous or illegal to carry.  Thanks for the heads up.
-CZ P-01

Offline PTGT_Neon

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Re: SP-01 Phantom disassembly and reassembly
« Reply #9 on: June 15, 2011, 02:08:46 AM »
I should correct that statement.  I did take one of my CZs too far in that direction on the hammer.  What I did was create two curved surfaces, one on the hammer, and one on the sear so the sear slips past the hammer at a certain point in the trigger pull.  This way I don't get that last spot where the force x area gets small and it feels like its sticking.  I succeeded in my goal.  But not before I took the hammer too far.  What did happen was the sear would not always engage the hammer after the slide went back to battery.  So the hammer came up to the half cock position. 

In other words, the half cock position will prevent the full auto scenario from happening.  So no worries.   ;D

Offline Tripps33

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Re: SP-01 Phantom disassembly and reassembly
« Reply #10 on: June 15, 2011, 08:11:02 AM »
Just another reason why i chose CZ!  ;D
-CZ P-01

Offline leoferus

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Re: SP-01 Phantom disassembly and reassembly
« Reply #11 on: June 19, 2011, 11:48:23 AM »
Thank you very much for this guide. I recently purchased a Phantom and freaked when I felt the gravel in the trigger.  In my opinion, it was so bad that I could not even bother shooting the gun until it was addressed.  So I searched and found this guide.  With it and the other trigger job guides here on the CZ forums I have been able to clean up the gravel and now I have a heavy but glass smooth trigger pull in DA and SA.  Even the decocker functions smoothly.

I do have two questions, will the CZ-75 extended firing pin work on the Phantom? I shoot factory ammo, sometimes reloads... would you recommend the 13 or 15# main spring? And I lied, one more question, what is the weight of the factory spring.

Thanks in advance.

Sincerely,

Ricardo

Offline PTGT_Neon

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Re: SP-01 Phantom disassembly and reassembly
« Reply #12 on: June 20, 2011, 01:46:45 AM »
I'm glad this guide is helpful!  Maybe we should get it stickied?  Mine had tons of creep too out of the box.

I put the extended firing pin in my Phantom, Police, and Tactical.  You can probably use a 13# spring and be just fine.  But for a carry, I'd use the 15# spring.  If you get the extended firing pin, get the solid retainer pin for the firing pin.  I think the factory main spring is about 18 or 21 lbs; I just don't remember.

Offline leoferus

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Re: SP-01 Phantom disassembly and reassembly
« Reply #13 on: June 23, 2011, 06:38:09 PM »
Thank you for the detailed response. I am new to firearms and I can use all of the help I can get. From what I've been reading and from your post I will trust that an extended CZ-75 firing pin and a solid roll pin will work. I will also probably compromise and get a 13 and 15 pound main spring. One for carry and one for competition. Like I mentioned, the above procedure coupled with the trigger job procedures in other threads made the Phantom's trigger smooth so all I need now is to drop the pull weight. Thanks again.

Sincerely,

Ricardo

mike4045

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Re: SP-01 Phantom disassembly and reassembly
« Reply #14 on: June 25, 2011, 11:26:33 PM »
Nice job. Good info. Makes me want to try and do mine. The first time I took my SP01 apart I thought I would never get it back together.

Mike