Phantom action issue

[Earl Keese]

...very easy for the lifter spring to get dislodged/pinched during reassembly. I can't say for sure, but if the spring stays in the up position, it could lodge in the fpb channel when the slide returns to battery.

[tdogg]

The hammer follow is a bit concerning.  I'd be inspecting the hammer hooks and sear closely.  The sear spring could be weak but I'd put money on hammer hook rounding.  Did you install a trigger in your Phantom?  Do you have pre/overtravel screws in the trigger?  If so, and if the overtravel screw was set too tight, you could have damaged the sear/hammer hooks.  I'm not sure how the hammer follow could happen any other way?  Even if you hadn't put a trigger with setscrews in it, the comp hammer could have altered the timing to make the hammer hooks not properly clear the sear on hammer drop.

The fact the slide doesn't go fully into battery is absolutely your missing firing pin block lifter spring.  If the firing pin block lifter stay's up, it will hook into the block in the slide and hold the gun out of battery.  Here is my exact same issue on my CZ40P (the reason I found this forum!): https://czfirearms.us/index.php?topic=44280.msg253895#msg253895

I'd like to see pictures of the sear, hammer hooks, and sear spring.  I'd also take the parts into CZ Custom for inspection while your getting replacement parts.  Good luck!

Cheers,
Toby

[AZ_CZ]

I remember this post! Made a mental post it note that Yes I could run my 40P without the plastic bushing if I get a SS guide rod. At the time there was a lot of debate about the issue.

Heading for CZC this afternoon with all my parts. Definitely (if parts are in stock) buying a new sear and all new cage springs. Going to take a better look at the FP lifter. Have a spare from a 97 conversion to SA so I might drop that in. The trigger is stock but will be installing a 85 Combat trigger that’s been idle and taking up valuable shelf space. That just leaves the the trigger bar.

One of the big head scratches for me is the intermittent failure. When I did a SA conversion it was evident right on the bench that there was a timing issue. This has never failed on the bench to pass every test. At the range it will work great then fail, then work great for awhile.

[AZ_CZ]

UPDATE:

Finally got out to the range and ran a quick flawless 26 rnds at 15yrds. Did some slow and fast even some double taps. All good. Session got cut short because stupid people just have to remind everyone they’re really that dumb. Will run 100 next time and see how it goes.

On the bench I replaced all the sear cage springs, new sear, and installed a used cz 97 trigger (been on the todo list for ages). The recoil spring was already replaced at the start. There was nothing wrong with the FP lifter arm. I’m convinced I lost the spring during disassembly when I installed the slave pin. Ive cleaned and inspected the gun and confident I would have noticed the arm not working. On the other hand I’m honestly surprised by the results. I compared the 2 sears and see no difference.



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