New to Me 4566 has a clicking problem

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1stepp

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I took pocession of a 4566 this past Sunday Looks barely used by Fresno PD. But there is one issues: in SA there is a "click" sound and feel to the trigger about half way through the pull. I video'd the problem with and without the slide installed. DA is smooth. I have yet to fire this pistol and want to make sure it's safe to do so.
IMG_1731.jpg

IMG_1738.jpg

Picture with it grandfather 645
IMG_1737.jpg

 
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your trigger play spring is either broken off or out of adjustment.

its only purpose is to keep tension on the SA trigger.

its the little L shaped left spring behind the trigger if you look down at a field stripped frame.

I have shot a match with mine broken. if you never take your finger off the trigger, and only reset to the point needed to fire the next round, you will never no its missing.

do a search on trigger click or trigger play spring.
 
Off topic....

The magazines in the photo are NOT CORRECT for your pistol.

While they will work, (and probably just fine). Later pistols would have been supplied with plastic bottomed mags. There are also other subtle differences in earlier and later generations.

Any pistol that would have been supplied with "MIM" parts would have had the later style magazines.
 
Originally posted by banger:
Off topic....

The magazines in the photo are NOT CORRECT for your pistol.

While they will work, (and probably just fine). Later pistols would have been supplied with plastic bottomed mags. There are also other subtle differences in earlier and later generations.

Any pistol that would have been supplied with "MIM" parts would have had the later style magazines.
Click to expand...
It came with one plastic bottom mag that was soaking at the time of the pictures. It had kinds of crud caked in it. The metal bottomed mags were purchased with the 645. Thanks for the clarification though.
 
SW CQB 45 is right in all respects. I wouldn't worry about it. It is not unsafe. Mine do it, too. I think they all do it eventually. If you look at the trigger play spring, it's a flimsy piece of stamped metal. There are threads on this forum about CHP's new buy of 4006s a couple of years ago, which were supplied without the part.
 
I acquired a 4516 yesterday with the same problem. Take a pencil with a nice new eraser on it and push on the above mentioned spring, pushing towards the front or dust cover, this will re tension the spring and the clicking should stop once you get it right.
 
here is the spring riveted to the trigger bar.

some have two fingers looking up and some have the two fingers connected across the top.

18207trigger_hooks_4506.jpg
 
Thanks all for the help. After I figured out that I needed to decock the hammer in order to adjust the spring, it adjusted easily. Trigger is now smooth and crisp in SA.
 
+1. Thanks guys. My 4566 had the same problem and was fixed in just a few minutes thanks to this thread. I appreciate it!
 
Don't go in there too vigorously with a cleaning brush either, or you'll snap the spring right off.
 
This thread help save me the hassle of shipping my new 4566TSW back to the factory. Just genlty pushing towards the muzzle of the gun on the tab with an eraser help adjust the tension enough to stop the clicking. I do occasionally get the click on the start of the SA pull, but doesn't happen again for a little while.
 
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Bought a 4566 LE turn-in that had that annoying single action click. With the slide off and the hammer cocked you could see the drawbar plunger spring pop up halfway through the pull. I adjusted that trigger play spring ever so slightly forward and that solved the problem. Now I have a very nice SA trigger, thanks to all who posted on this topic.
 
So do you push the copper looking bracket with the two raised tabs pushing a little on each left and right tab until the clicking stops? and this copper bracket is called a spring? Thanks trying to fine tune my 4506
 
Thanks to fastbolt...

my "clicking noise" issue was resolved as well. He did a great
article on it, with great pics, and I bet you'll find it if you search trigger play spring. It wasn't a real "issue", but it was comforting to have
the real story. TACC1 (seemed like an issue at the time)
 
SemperFuzz said:
So do you push the copper looking bracket with the two raised tabs pushing a little on each left and right tab until the clicking stops? and this copper bracket is called a spring? Thanks trying to fine tune my 4506
Click to expand...

Yep... that little bugger is the trigger free play spring, and that's how you basically go about it adjusting them.

Here's a pic with the parts out of the gun to see the relationship of the spring with the trigger pawls, the red arrow points to the area where the clicking comes from when the spring doesn't keep the trigger snug against the drawbar.

PB070001-1.jpg
 
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Excellent used a square end of a wooden chopstick and nudged the copped flange forward ever so slightly forward towards the muzzle end and Perfecto ! No click and nice and smooth single action.

I had to run out to my Gunsmith and tell him forget i figured it out give me my gun back, he wasnt even going to look at it until Saturday so i saved some money and he probably didnt even know what he was going to do.

Thanks all excellent info and knowledge. left Holster finally showing up tonight and ready to carry my 4506 again WoooHoo

002-2.jpg
 
Very interesting. My recently acquired 4506 had the same clicking and while having it apart I noticed the spring was not pushing the trigger against the drawbar. So I just adjusted it a little and once I had the gun back together the clicking was fixed. Although I thought cleaning the gun fixed the click now I know from this thread it was the spring adjustment that did the trick! Thanks for the education.
 
I guess its important for folks to know that this applies to basically all 3rd gen Smiths, not just the 45xx models. My 9mm 910 was doing the same thing, and with the information found here I took it apart tonight and fixed the problem. Always a good day when you learn something new. :)
 
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