Trigger Bar Lifter Spring Adjustment

[dbarn]

My question regarding this subject is consistency pistol to pistol. This adjustment was initially recommended to adjust the left side to have less pressure on the left side and to rest just inside the groove of the left side of the trigger bar while the right side is adjusted to have more pressure on the right side. Now I’m seeing the recommendation for the left side to rest just inside the trigger bar outside of the groove. What’s worked for you to achieve the best reset and sear/hammer engagement? Do you find this adjustment varies from pistol to pistol?

[SI VIS PACEM PARRABELLUM]

Not sure what you're seeing where or from whom but this is how it's done.
https://cdn1.cajungunworks.com/wp-content/uploads/2020/07/28155355/How-To-34-Adjustment.pdf

[dbarn]

Yes! That’s a change from their original instruction of letting the left side rest with little tension just inside the groove. I’m finding that while this works in two pistols, one is better with the left side resting below the groove.

[M1A4ME]

When I took my "SP01" compact apart it was set up opposite of that.

The left side of the spring was visibly higher than the right side.  I don't know if the springs are made and bent somewhere else of if the person at the factory installing the springs bends them.  But that particular pistol was set up the opposite of those instructions.



I leveled the legs out (not knowing what was supposed to be right) and reinstalled it and it worked.  There's got to be a reason for having them offset.  Some benefit.  I don't know what it is.

[dbarn]

Agreed. I did notice also that by having more tension on the right side that when removing the trigger bar there are renewed wear marks on the left side from a previous polish job, although very slight.

[tdogg]

I'm not sure what you're insinuating but the trigger bar spring should still be in the trigger bar groove just with very little tension on the left side.  I don't think that CGW is advocating for the spring to ride inside the trigger bar outside the trigger bar spring groove.  The photo's are just to illustrate the amount of tension needed.  I agree the wording is not very clear in the instructions.

I'd opt to have the trigger bar spring in the groove regardless.  I haven't had to fuss with the trigger bar spring on any of my CZ's since they were polished and the springs were set originally.

Cheers,
Toby

[dbarn]

Thanks Toby, I’m only looking for clear definition and an accepted consistency. I have to admit that my understanding is that the current recommendation is for the left side to ride outside of the groove on the inside, but I may be the one who is misunderstanding. Really looking for other’s findings with no insinuations one way or the other.

[Born2vette]

My understanding is the spring should ride in the groove as well.  When the tension is not right you can get a false reset (had that issue with my 97 after installing RRK. Easily corrected by adjusting the spring tension).

No clue why the tension is adjusted differently one one side versus the other but it works.

[SI VIS PACEM PARRABELLUM]

So the question is have these pistols you mention been modified in any way? If so have they received the same mods? What you may be experiencing is the tolerance variations and such that are common with service grade pistols and typical of CZ's.
All my CZ's 6 of them have the same mods- full Pro Packs and I've set everything up according to those instructions without issue.

[dbarn]

And that makes the most sense. Two of my pistols are factory stock and the other two modded by CZC and CGW. The one that was modded by CGW works best with the springs riding in the groves. The CZC modded works best with the current recommendation. The factory stock guns work best with the current recommendation while the other appears to be below the trigger bar. Perhaps each gun that’s not modded the same is different with no hard and fast method of adjustment.

[M1A4ME]

I'm not sure what you're insinuating but the trigger bar spring should still be in the trigger bar groove just with very little tension on the left side.  I don't think that CGW is advocating for the spring to ride inside the trigger bar outside the trigger bar spring groove.  The photo's are just to illustrate the amount of tension needed.  I agree the wording is not very clear in the instructions.

I'd opt to have the trigger bar spring in the groove regardless.  I haven't had to fuss with the trigger bar spring on any of my CZ's since they were polished and the springs were set originally.

Cheers,
Toby

I thought the same thing - that the OP was looking at the pictures and seeing the spring out of the groove only as a way of seeing where it should ride when properly adjusted (bent), not as a position to leave it all the time.

I'd be afraid that spring might get hung up/bent/twisted badly during a magazine insertion and cause problems if it was left out/inside the trigger bar.

I remember some people asking (years ago now) about problems with one side or the other of the trigger bar spring not staying in the grooves on the bottom of the trigger bar.  The recommendations, if I remember correctly, was to take your time and deepen, then polish the groove after making sure the spring was properly tensioned.  I had to deepen the groove on one of my pistols back then but I don't remember now which pistol that was.

[dbarn]

Well I went back and re-read the instructions and it states “it should barely stay popped out from under the trigger bar.” Like you, Toby and others, my previous understanding is it should be riding in the groove on the left side with little tension.