cz 858 problem

[JRW (QOR)]

Hmm not sure what you mean?

You can see this in the above photos. With your fingers slide the striker back as if the bolt moved it. You should be able to hear it click into place. It should not slide forward.

Pull the trigger and it should release and allow the striker to move forward.

Slide it back again, and allow the release clip to move to the right along the pin, there should be some free play on the pin. See then if pulling the trigger allows the striker to move. I had to use a small screwdriver on the left of the striker to allow the release block to rotate a bit on the pin and keep it to the right. Then the striker didn't release.

Seems the recoil or movement of the block is making the trigger block move to the right ever so slightly and the striker won't release.

As I said I played with it for a long time before I finally was able to manually reproduce the problem.

All academic of course, as you're going to add the shim.

 

[Throttle_monkey1]

Another way to decock without drilling is remove the pistol grip and use a hook through the hole to pull the sear to release the striker.

 

[shawn]

look, i know you trying to help but its a bad advice.

heres a way without drilling a receiver, another is thru the stock bolt :
http://www.canadiangunnutz.com/forum/showthread.php?t=320178&highligh

I mentioned that as a solution, but for a different problem. And all that will still not let the striker go home in the situation I was talking about. If the cross pin pivot lock is in this position:

You can pull down on the sear and spring all you want and the striker is going nowhere. As the bottom ear of the striker is being stopped by the pivot lock not the sear.

We are talking about 2 different issues. One where the trigger can move left and right on its pin, requiring a spacer. And two when the pin pivot lock is not properly seated and prevents the striker from moving forward.

Issue one the OP had for sure, and issue two almost happened as the OP said the pivot lock was not properly seated.

I was explaining what could happen if the pivot lock was not checked and seated prpperly and possible solutions.

Shawn

 

[shawn]

This is what will happen if the pin pivot lock is not in the correct position:

Trigger not pulled and in normal position:

Trigger pulled and in position it would be in if you pulled it down through the grip hole:

As you can see the striker will not go forward in the situation I described just by pulling the sear or sear spring down. This is the issue I was warning against and suggesting that people check the pin pivot lock frequently as it will lock up your gun and merely pulling the sear down will not cut it.

Shawn

 

[X-man]

Interesting thread.

 

[Curtton]

As you can see the striker will not go forward in the situation I described just by pulling the sear or sear spring down. This is the issue I was warning against and suggesting that people check the pin pivot lock frequently as it will lock up your gun and merely pulling the sear down will not cut it.

Shawn

im totally confused where you are going with this . have you actually done this before ?

firstly , if the locking arm is in the unlock position you cant put on the top cover bcos its prevented by the striker in the rearward position so it has to be in a partial lock position .

secondly, then some how it moved to the unlock position preventing the striker from moving forward but it still doesnt require drilling the receiver cos the axis pins would then easily slide out , giving you at least 2 holes to use plus you can wiggle the trigger to give you enuff clearance to push in a screw driver to push the locking arm back to the lock position releasing the striker.

 

[shawn]

im totally confused where you are going with this . have you actually done this before ?

firstly , if the locking arm is in the unlock position you cant put on the top cover bcos its prevented by the striker in the rearward position so it has to be in a partial lock position .

secondly, then some how it moved to the unlock position preventing the striker from moving forward but it still doesnt require drilling the receiver cos the axis pins would then easily slide out , giving you at least 2 holes to use plus you can wiggle the trigger to give you enuff clearance to push in a screw driver to push the locking arm back to the lock position releasing the striker.

The top cover was off so I could take pics.

This has happened to at least one board member, there is a thread on it some where.

What happened is, while the gun was assembled and firing the pin lock worked it way unlocked and locked up the gun. Now you cant take the dust cover off and pulling the sear pin down will do nothing.

I never said that this is the required way, in fact it was only one of a few ways I posted. Using one of the receiver holes and a pick or something similar was also one of the ways I suggested.

What I said was that this would be a good way for a field expedient solution as you would not have to push the pins out and have a handful of parts once you got it unlocked.

Shawn

 

[Curtton]

The top cover was off so I could take pics.

This has happened to at least one board member, there is a thread on it some where.

What happened is, while the gun was assembled and firing the pin lock worked it way unlocked and locked up the gun. Now you cant take the dust cover off and pulling the sear pin down will do nothing.

I never said that this is the required way, in fact it was only one of a few ways I posted. Using one of the receiver holes and a pick or something similar was also one of the ways I suggested.

What I said was that this would be a good way for a field expedient solution as you would not have to push the pins out and have a handful of parts once you got it unlocked.

Shawn

so while in the field , no drill available and not wanting a handful of parts , you would rather drill the receiver in anticipation of a problem before heading out to the field , did i understand you correctly ?

 

[dweenz]

lol these ..... thats your sear and a spacer bushing put the spacer back into the sear so you have the sear spacer on one side and the bushing spacer on the other side. then drop it in where it goes so the sear sets on the leaf spring. then replace your pin the thing that fell out. now check inside and see if the little holder for retaining the pins is in place and it should be able to lock down on the pin making them stay put.....