CZ 75 mainspring replacement help please

thegrandpoohbah

thegrandpoohbah

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I am trying to upgrade the mainspring in my new SP-01 Shadow. I have removed the retaining pin but the mainspring plug is stuck in place pretty good. I checked some videos online and they all say to watch out for the plug flying out. Mine is definitely not having this problem. Any suggestions other than some elbow grease? I would hate to bugger up the plug by hammering at it too hard. Thanks.
 
Yeah remove grip then magazine break first.

I had a hard time with the magazine break personally. It would not bend far enough. I had to slide it out sideways forcefully which cant be good if done repeatedly. Any tips?

Sorry to hijack, but the answer should help you.
 
Yup, I had to pop the pin and remove the magazine guide completely, it was binding it at the bottom where the plug is. Weird, all the videos I've seen show people leaving it in place and the plug comes out very easily. Oh well, lesson learned.
 
My routine:

-pull grips
-drift mag brake pin out
-apply pressure to bottom of mainspring "plug" against a flat surface and slide mag brake up and free (slide up towards top of receiver)
-apply pressure again to plug and drift pin out then plug and spring will drop free
 
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Mine was a real pain. I managed to bend the crap out of the mag brake, got it sorta back to normal now. Mine was binding bad at the bottom. I think it needs to be opened up. (the slot that it rides in ) Does anybody think this is a bad idea?
 
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You do no need to bend the mag brake, my god, seriously, there is a pin, up at the top of the mag brake, take that out first, then the brake. Then with care, push out the plug's pin and carefully release it, replace the spring and assemble in the reverse order.

I'm going to go cry now
 
Not just the pin holding the mag brake in, the mainspring plug holds the brake with friction.

ETA: The Shadow brake is stainless and will crack if you attempt to bend it out of place.
 
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lejarretnoir said:
This is what happens when people watch amateur you tube vids.
Slavex and dusticles have it right.

Next we'll be hearing about trigger jobs and why you can't get your safety back in. ;)
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Let me guess you did it perfect the first time? Or you are a gunsmith? Or somebody showed you how?

Slavex, no way in h-ll mine would easily go back in. I also put a heavy spring back in and not a 11lb one.
 
lejarretnoir said:
This is what happens when people watch amateur you tube vids.
Slavex and dusticles have it right.

Next we'll be hearing about trigger jobs and why you can't get your safety back in. ;)
Click to expand...

How is it an amateur Youtube video? I watched the guy EFFORTLESSLY remove his mainspring plug in 2 seconds. He made a point of mentioning that it has to be held in place to prevent it flying out. And I watched more than one video on this topic. Mine would not budge, period. I would really appreciate if you have anything constructive to add but otherwise you are wasting everyone's time.

Thank you to everyone else who has provided actual firsthand knowledge. Much appreciated. And is it actually called a magazine brake? The manual lists it as a magazine guide.
 
Good lord people chill out! Don't know which vids you were watching, but the ones I've seen were bad. Everytime the guy had a problem he switched off and came back with no help on how he got it back together. I think it was three part series. He was amateur at best!
It's always best to ask before proceeding instead of jumping in and having a problem.

Now that I've been labeled the bad guy in this thread, have at it. Up your nose wit a rubber hose . ;) LOL
 
lejarretnoir said:
Good lord people chill out! Don't know which vids you were watching, but the ones I've seen were bad. Everytime the guy had a problem he switched off and came back with no help on how he got it back together. I think it was three part series. He was amateur at best!
It's always best to ask before proceeding instead of jumping in and having a problem.

Now that I've been labeled the bad guy in this thread, have at it. Up your nose wit a rubber hose . ;) LOL
Click to expand...

Been one of those days for me. I wonder if the mag brake needs to be sanded lightly, maybe it has a burr? Scared to remove it now and check lol.
 
If someone can't figure out that there is a pin holding the brake in they shouldn't be trying to take the bloody thing out. It's that simple. And yes, I took it apart with no issues the first time, it's a pretty simple process. Sometimes you need to press up a little bit on the plug, but normally not. Seriously look at the drawings even, they show the pin.
 
Slavex said:
If someone can't figure out that there is a pin holding the brake in they shouldn't be trying to take the bloody thing out. It's that simple. And yes, I took it apart with no issues the first time, it's a pretty simple process. Sometimes you need to press up a little bit on the plug, but normally not. Seriously look at the drawings even, they show the pin.
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I think you missed my point. I am fully aware there is a pin holding in the mag brake. The videos I have seen show the mainspring plug being removed while the brake is still in place, and very easily at that. I tried to replicate that method and it clearly did not work, which led to my initial inquiry. I did try pushing the plug up as well but it did not budge at all in either direction once the retaining pin was drifted out.

Here some of the videos I referenced:

https://www.youtube.com/watch?v=DjtrGaQUIHk

https://www.youtube.com/watch?v=Ro6ZFD40F1I

https://www.youtube.com/watch?v=WCb0_ntbkH0 (At 10:50. This one is long and I didn't watch the rest of it, only what I was concerned with)

So why is mine so drastically different I wonder? I was under the impression that all CZ 75 models shared the same basic internals.
 
lejarretnoir said:
Good lord people chill out! Don't know which vids you were watching, but the ones I've seen were bad. Everytime the guy had a problem he switched off and came back with no help on how he got it back together. I think it was three part series. He was amateur at best!
It's always best to ask before proceeding instead of jumping in and having a problem.

Now that I've been labeled the bad guy in this thread, have at it. Up your nose wit a rubber hose . ;) LOL
Click to expand...

Sorry if that came off as rude but it's not like I jumped in without researching first. My previous post has three of the videos I referenced. Amateur or not, they all show what I was trying to accomplish. My experience was not even close and I am trying to figure out why. Feel free to provide your insight and expertise.
 
The pin is not the problem. I have the gun disassembly app, I know the pin. Sorry to have offended you, even though my post was not directed at you. I also know I should not have got sucked in to this thread, and to think of it, many others. Have a good night.
 
thegrandpoohbah said:
Sorry if that came off as rude but it's not like I jumped in without researching first. My previous post has three of the videos I referenced. Amateur or not, they all show what I was trying to accomplish. My experience was not even close and I am trying to figure out why. Feel free to provide your insight and expertise.
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It's all good.
Is the hammer up? Try pulling it back in cocking mode while holding the butt on the bench where the plug is. I've seen some that are stiff. Usually that will push the plug out as you slowly lift the butt up from the bench. With the pin removed from the mag brake, just wiggle it out sideways. Don't force anything and don't try to bend it out.
 
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