firing pin block lifter spring replacement

[crankyoldlady]

CZ 75BD, about 1,500 round count

How common is it for this lifter spring to go bad/break and need replacement?  Is it a known weakness or can it be the result of user error?

[n8vmdpath]

It's a v shapes spring. I can't think I ever heard of it going bad.

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[crankyoldlady]

It has popped out of it's groove twice which stops everything.  So, of course, now I cannot trust the pistol until a new spring is installed or I remove the FPB and lifter.

I'm wondering why the spring is going wonky all of a sudden.

[n8vmdpath]

Was the sear cage recently disassembled/reassembled? 

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[crankyoldlady]

Was the sear cage recently disassembled/reassembled? 

No.

[1SOW]

Have you done a vigorous cleaning in that area.  I'm just wondering if the OTHER end of that spring is seated properly.
No offense meant:  Just trying to imagine what could have caused an unusual problem.

[crankyoldlady]

I'm not a compulsive cleaner.  Every 300-400 rounds is good enough for me.  Probably over generous with the oil.  Hand loads only if that matters.

I do use an old toothbrush to clean the sear cage using a back (hammer) to front motion.  Could be I caught it just right and dislodged the spring.  Or maybe it's just losing its spring-y-ness.  It is a  puny excuse for a spring.

[n8vmdpath]

If you are familiar with sear cage desugn, you can do disassemble/clean/reassemble and  make sure all springs are seated properly.

  There are some good YouTube instructional videos on this. 

Or you can bring it to a competent gunsmith..

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[1SOW]

Check the spring arm seats.  I quit using a rag under the trigger bar when I dislodged the trigger bar spring. 

[crankyoldlady]

Thanks, All, for the responses.  I am now quite sure that I dislodged the spring whilst cleaning.  User error.  And another learning experience.

I was able to reseat the spring using a tiny crochet hook.  I'll be more careful going forward and will check the lifter each range visit.

Hopefully,  the spring does not need replacement.  Disassembling the decocker sear cage is as much fun as a toothache.