S&W 686 rattles

DarkSkyx

DarkSkyx

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http://www.youtube.com/watch?v=WQODTaBmGZs

Skip to 1:25 to get past the disassembly.

So, it's not the hammer block (that's removed). It's not the cylinder release latch (which is a bit loose) because I've put thumb pressure on it and it still rattles. It's not the firing pin - I can visually see it hasn't moved when the gun is moved.

I can't see or feel any moving part in the mechanical assembly with the side plate off.

Any ideas what's causing this rattling?

As it says in the vid description, it's only when you point it up and down (not side to side). Something's sliding around in there.
 
Does it still happen with the cylinder removed? It would be really odd if it was coming from the underlug, I would have just assumed it was the firing pin or the hammer block.
 
Turkinator said:
Does it still happen with the cylinder removed? It would be really odd if it was coming from the underlug, I would have just assumed it was the firing pin or the hammer block.
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Yep - it's still there with cylinder off (and cylinder arm of course).

It's almost as if it's down under the layer of parts that I can actually SEE with the side plate off. Hopefully a gunsmith who's really familiar with 686's will know what part is doing this, and if it's normal or not.
 
When you had the cylinder out, and the side plate off,was the locking bolt plunger spring still in the frame? With the cylinder open, depress the ejector rod slightly, and tip again. Still rattle?
 
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ryan said:
When you had the cylinder out, was the spring still in the frame? With the cylinder open, depress the ejector rod slightly, and tip again. Still rattle?
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The rattle was still there even with the cylinder and arm (and ejector rod) completely off the gun. It's coming from somewhere INSIDE the frame where all the mechanical gizmos are.
 
DarkSkyx said:
The rattle was still there even with the cylinder and arm (and ejector rod) completely off the gun. It's coming from somewhere INSIDE the frame where all the mechanical gizmos are.
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A quick trip to your local Gunsmith may be necessary ..(I would) just to satisfy myself
 
hatman1793 said:
It appears that your so-called rattle is really simple to explain. S&W has an L-shaped lever that acts as a safety inside the action. The rattle is the lever/bar moving up and down on the pivot pin inside.
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Are you referring to the hammer block? I believe it was removed before the test in the video.
 
With the cylinder closed, depress the cylinder release slightly, and try tipping the revolver again. Does the sound change? If the spring is broken or missing, that could cause the rattle.
 
OK - I found that fulling pulling the trigger and holding it back after the hammer drops, then moving the gun up/down - it DOES NOT rattle. I saw that another guy noticed the same thing over on defensivecarry.com

So it's something to do with the trigger mechanism.

'Sounds like it's a normal thing to occur. I just want to try and find the part that's causing it.
 
Could it be the trigger stop rod (item 5306)?

View attachment 63639

DarkSkyx said:
OK - I found that fulling pulling the trigger and holding it back after the hammer drops, then moving the gun up/down - it DOES NOT rattle. I saw that another guy noticed the same thing over on defensivecarry.com

So it's something to do with the trigger mechanism.

'Sounds like it's a normal thing to occur. I just want to try and find the part that's causing it.
Click to expand...
 
DarkSkyx said:
OK - I found that fulling pulling the trigger and holding it back after the hammer drops, then moving the gun up/down - it DOES NOT rattle. I saw that another guy noticed the same thing over on defensivecarry.com

So it's something to do with the trigger mechanism.

'Sounds like it's a normal thing to occur. I just want to try and find the part that's causing it.
Click to expand...
Have you eliminated the hammer stop (part 5584 in VanMans exploded view)? Because it sure sounds like that's what it is. If the return spring were missing I believe it would still appear to function fine because of the pressure applied to the stop by the centre pin (part 7275).

With the cylinder open does the cylinder release return to the front under spring tension when pressed back?
 
5306 !!

The funny thing is - VanMan mentioned 5306 ^^ above and for the life of me I couldn't find it. I took the gun apart again (poor thing - this is about the 10th time) then took out the trigger spring, guide ride, and the part it resides in. This can be a *real* ##### getting back together because I've done it before when I installed the Jerry Miculek spring kit. For some reason the other 2 or 3 times I removed it, I got it back in easy. THIS time, part 5073 (a little barbell rod thing, behind the trigger) was out of position a bit, and after re-installing the trigger spring part, the side plate wouldn't go on properly. It was sitting up a hair even when screwed in.

So I noticed part 5073 was showing behind the trigger where I never saw it show before, straightened it out a bit, got the trigger spring back in (MUCH easier this time with part 5073 in proper place, and got it all back together again.

Oh yah - after removing parts 5036, 5034, and what LOOKS like 4165, then tipping it up/down - NO LOOSE NOISE. So I'm 99% sure it was that little guide rod in there, which is shorter than the space it resides in, which would allow it to slide back and forth in there, making that noise.

I *really* need to search for a higher-resolution of that parts diagram - it's a lifesaver for trying to explain the parts you're talking about!

THANKS SO MUCH GUYS!!!
 
Glad you sorted out what's making the rattling. I'm finding S&W revolvers really fun and slightly addictive to tinker with :)

I found that the 5306 Trigger Stop Rod was in my 625 and 610, but not in my 929. Apparently it's there to control trigger over-travel in some of the older revolvers. Models with an over-travel screw installed like the 929, or some of the newer revolvers may not have it.

DarkSkyx said:
Actually it looks like the parts I was calling the trigger spring ^^ above is formally called the "rebound slide spring". ( http://stevespages.com/pdf/s&w_686.pdf )

Oddly enough, that little rod inside the spring is not even listed, but it is listed in the diagram VanMan gave.
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