Author Topic: I Replaced the Recoil Spring on my CZ40P  (Read 508 times)

0 Members and 1 Guest are viewing this topic.

Offline desertrat23

  • Newbie
  • *
  • Posts: 3
I Replaced the Recoil Spring on my CZ40P
« on: February 08, 2017, 06:57:27 PM »
On my CZ40P, I have had too many failure to feed, jamming on the feed ramp. Following advice on this forum, I have installed a 20 lb Wolff spring (for CZ75). I shortened the spring by 3 turns and replaced the plastic guide rod with a stainless one from MSC. I shortened the stainless rod so it just protrudes from the front of the frame. I checked and the slide will lock back. So far, so good I think.
QUESTION: Should the new spring/guide rod be installed WITH or WITHOUT the original plastic spring bushing?

Thanks all.

Offline Nubia

  • Jr. Member
  • **
  • Posts: 62
Re: I Replaced the Recoil Spring on my CZ40P
« Reply #1 on: February 08, 2017, 08:09:55 PM »
From my experience since you installed the new stainless steel guide rod you don't need the bushing... I have the same gun and don't use the poly bushing. No issues. In fact I had sent my 40P to Cajun gun works and it came back without the bushing.

Sent from my DROID Turbo using Tapatalk


Offline desertrat23

  • Newbie
  • *
  • Posts: 3
Re: I Replaced the Recoil Spring on my CZ40P
« Reply #2 on: February 09, 2017, 10:05:55 AM »
 :)  Thanks for the reply. I'll remove it and I'm off to see the results this morning.
If you have a moment, tell me more about Cajun Gun Works.

Offline tdogg

  • Hero Member
  • *****
  • Posts: 917
Re: I Replaced the Recoil Spring on my CZ40P
« Reply #3 on: February 09, 2017, 10:22:15 AM »
That bushing is necessary!

It is a buffer to prevent the Colt slide from impacting the CZ frame.  This is a frankengun and that is why the bushing is needed.  I wouldn't run it without the bushing.

Manually rack the slide with and without the buffer and see what happens when the slide reaches full lock back where it stops.  If I remember correctly it potentially will bind (and potentially lock up with enough force) in the rear/open position.  That bushing is a buffer to prevent that from happening.  Without that bushing the recoil spring is probably absorbing all the force during recoil (full stacking of the spring).

Cheers,
Toby




Offline desertrat23

  • Newbie
  • *
  • Posts: 3
Re: I Replaced the Recoil Spring on my CZ40P
« Reply #4 on: February 12, 2017, 12:01:28 PM »
Thanks to all for your opinions. I really like the size, appearance and accuracy of the 40P but have had occasional FTF ever since I bought it.
3 days ago I fired it with (a) standard magazine springs (b) a Wolff 20 lb spring with no buffer and the MSC stainless guide rod, cut so it barely protrudes from the end of the frame. (c) I used both magazines which I disassembled, cleaned, lightly lubricated (d) used 2 brands of factory ammunition. Result, no malfunctions in about 50 rounds. For now, hooray.

desertrat23 in Mesa, AZ

Offline handgun2

  • Hero Member
  • *****
  • Posts: 519
Re: I Replaced the Recoil Spring on my CZ40P
« Reply #5 on: February 17, 2017, 07:10:47 PM »
congrats!  keep us posted on this reliability thing.. try to keep a range count going forward to keep adding too.. you just don't know 'who' else will 'learn' or 'appreciate this thread",   I do.  I always try to keep learning.

respectfully,
K in MI

Online Stuart

  • Hero Member
  • *****
  • Posts: 8335
Re: I Replaced the Recoil Spring on my CZ40P
« Reply #6 on: February 17, 2017, 07:34:59 PM »
I was always told the delrin bushing was needed to protect the frame.

but this was many many years ago when I had one.
but that was so long ago and I have looked at one since.