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Gutting evva mcs?

Information about locks themselves. Questions, tips and lock diagram information should be posted here.

Gutting evva mcs?

Postby G-lock » 9 Mar 2017 13:59

Okay, so i got my hands on some evva mcs euro cylinders & of course the 1st thing i want to do is take 1 apart to look at the guts. But when i put a key in and pulled the core half way out it looked like alot of parts so i decided to put it back & not to go any further until i at least asked if anyone has any advice because ive never done it. I tried the search, Google, & youtube only youtube had a video but it was a newer type of mcs than mine & the video was in Russian (i think) so i could not understand anything he was saying. Are these locks not supposed to be taken apart outside of the factory?
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Re: Gutting evva mcs?

Postby Ralph_Goodman » 9 Mar 2017 14:07

I just saw this video on Reddit a couple days ago. (Very new).

https://www.youtube.com/watch?v=ZBodDVO ... e=youtu.be

He explains the internals pretty well and includes some of the precautions about fragile parts.

However, the lock is already taken apart when the video starts. (Which does serve the propose of showing you the guts, but it isn't too much of a tutorial on taking them apart).

I asked over on another post you made, but are you planning on trying to pick any of the locks you got?
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Re: Gutting evva mcs?

Postby G-lock » 9 Mar 2017 14:31

That showed me everything i needed to know. Thanks.
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Re: Gutting evva mcs?

Postby G-lock » 14 Mar 2017 10:36

I got this lock gutted the other day & i wanted to list the steps i took to do it. I know some of you bought or are planning to buy 1 of these & theres not much out there on how to disassemble it. Before i go into to much detail i would like to point out that i am not a locksmith & i am still learning locks so some of the wording i use may not be correct. I would also like to point out that beacuse i am inexperienced this may or may not be the correct way to do this.:oops:

In the back of the lock theres a bearing on the bottom of the keyway.
Image
You need to depress this bearing & rotate the plug until the side bars bind (about a 8th or 10th of a turn).
Image
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Then (without the key) push the plug out with a follower but be careful the inside of the housing has all sorts of milling cut into it that will catch your follower. The top pins on mine also got caught up on the groove in the back for the retaining clip so i would recommend filling that groove if you can with some thread or something.
Image
Image
Image

After removing the plug theres 13 bearings of various sizes 7 on top & 6 on the bottom. Thankfully only 1 of them comes out :D then the side bars can be removed & you will have some plastic rings that just slip off 1 is actually a split ring so it falls off. Then your left with this plastic base plate.
Image
The plate is just pressed in place so with some careful prying (while pulling with tweezers) it comes off. That will reveal what i am going to call side bar #2 & under that a cover plate that retains the magnetic discs.
Image

Heres a picture of the lock disassembled i only removed the plastic base plate, side bar #2, cover, & magnetic discs from 1 side though. I need a bigger pinning mat. Those little discs like to stick together & get mixed up.

Image

Upon reassembly i could not get the plug back into the housing unless i put some thread in the groove for the retaining clip. Im sure theres a better way to do this but its what i had on hand.

Image

I hope this helps someone.
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Re: Gutting evva mcs?

Postby GWiens2001 » 14 Mar 2017 13:14

Annnnd... Sticky!

Great job, G-Lock!

Gordon
Just when you finally think you have learned it all, that is when you learn that you don't know anything yet.
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Re: Gutting evva mcs?

Postby G-lock » 14 Mar 2017 15:12

GWiens2001 wrote:Annnnd... Sticky!

Great job, G-Lock!

Gordon

My 1st sticky! Thanks!
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Re: Gutting evva mcs?

Postby GWiens2001 » 14 Mar 2017 20:39

Question g_lock - does there appear to be anything that would bind or catch if one of the sidebars were removed?

I ask because I have a cutaway MCS made by Snowyboy, but it still has both sidebars in it. Have wanted to see about pulling out one of the sidebars so you could see the rotors (magnetic wheels with gates) on one side, but been hesitant to test it, and have plenty of lock related stuff to do. Unfortunately, have not heard from Snowyboy in a couple years now, so can't ask him. I'd rather not brick a beautiful cutaway testing ideas, and have not disassembled an MCS before.

Does anyone else know?

Gordon
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Re: Gutting evva mcs?

Postby G-lock » 14 Mar 2017 21:55

GWiens2001 wrote:Question g_lock - does there appear to be anything that would bind or catch if one of the sidebars were removed?

I ask because I have a cutaway MCS made by Snowyboy, but it still has both sidebars in it. Have wanted to see about pulling out one of the sidebars so you could see the rotors (magnetic wheels with gates) on one side, but been hesitant to test it, and have plenty of lock related stuff to do. Unfortunately, have not heard from Snowyboy in a couple years now, so can't ask him. I'd rather not brick a beautiful cutaway testing ideas, and have not disassembled an MCS before.

Does anyone else know?

Gordon



If you remove the side bar in a cutaway to make the discs visible you will have to make a clear cover plate that retains the discs & fills the gap where the side bar was. The plug will have a sidebar size hole in it that the top pins will fall into seizing or "bricking" the lock. Lol. Removing all the top pins might work also. But you would still need a clear retaining cover for the discs. They fly out if you leave them exposed & insert the key with no cover. After gutting one i would love to see a cutaway. There has to be alot of special clear pieces for it to work with the discs visible. Unless theres something im missing.
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Re: Gutting evva mcs?

Postby GWiens2001 » 14 Mar 2017 23:07

Very important info! Glad I did not try it before. :)

Gordon
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Re: Gutting evva mcs?

Postby G-lock » 5 Apr 2017 18:33

Okay my curiosity got the better of me & i gutted 7 different MCS locks today. My thoughts were that because the plastic rotors are lighter than the metal rotors they take less magnetic energy to move. So the magnet in the rotor would make it spin easier when tension is let off & its attracted to the antidrill insert as to where the metal ones dont spin at all when tension is released cause they are heavier. I was right & wrong. Out of the 7 only 1 (which happens to be the 1st one i gutted) does this & it doesn't spin because of the antidrill insert it spins because my lock is master keyed & the magnet in rotor next to it repels it. So in a lock that is not master keyed i dont think this would be a issue. It would be a easy fix for Evva though. All they have to do is put a steel insert under each rotor that makes it so the magnet in the rotor will be attracted to it holding the rotor in a locked position. Then you would need to manipulate all 8 rotors at once to pick it. Cause everytime you move your pick the rotor will spin back to where it was before you touched it.
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Re: Gutting evva mcs?

Postby Ralph_Goodman » 6 Apr 2017 11:41

G-lock wrote:Okay my curiosity got the better of me & i gutted 7 different MCS locks today. My thoughts were that because the plastic rotors are lighter than the metal rotors they take less magnetic energy to move. So the magnet in the rotor would make it spin easier when tension is let off & its attracted to the antidrill insert as to where the metal ones dont spin at all when tension is released cause they are heavier. I was right & wrong. Out of the 7 only 1 (which happens to be the 1st one i gutted) does this & it doesn't spin because of the antidrill insert it spins because my lock is master keyed & the magnet in rotor next to it repels it. So in a lock that is not master keyed i dont think this would be a issue. It would be a easy fix for Evva though. All they have to do is put a steel insert under each rotor that makes it so the magnet in the rotor will be attracted to it holding the rotor in a locked position. Then you would need to manipulate all 8 rotors at once to pick it. Cause everytime you move your pick the rotor will spin back to where it was before you touched it.


Amazing info. Sounds like a good fix.

They should really take the recommendation now that one of these has been picked.
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Re: Gutting evva mcs?

Postby G-lock » 6 Apr 2017 15:04

Ralph_Goodman wrote:
Amazing info. Sounds like a good fix.

They should really take the recommendation now that one of these has been picked.


i originally thought that the locks with plastic rotors could not be picked using the same technique because of the weight difference in the rotors but i was wrong. Looks like they are not any different. I hear that evva is coming out with a gen 3. I wonder what it has in it? Im told that there are no changes to the magnetic part of the lock.
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