S&W 329PD Cylinder center pin binding?

danbrew

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Hi, new guy here. I'm on a revolver kick and recently picked up a Smith & Wesson model 329PD - the 26oz .44. When shooting it for the first time, on round number 4, I encountered what I thought was a "lock failure", which is documented here: http://michaelbane.blogspot.com/2007...y-failure.html. I promptly went home and took apart this brand new gun and removed the lock. It was a pretty simply process. I was out shooting it today and on the 2nd round (240g full power loads), the gun seized up and I couldn't advance the cylinder, cock the gun, or release the cylinder. That's a little screwed, right? And of course I had another 4 rounds in the cylinder and I wasn't crazy about screwing around with it too much.

But... 'ya gotta do what 'ya gotta do sometimes. I realized that the only way I could rotate the cylinder was by pulling the trigger gently. The hammer would just go back a fraction. I later learned that the hammer was hitting the cylinder bolt, which was preventing the hammer from going back all the way:

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(original size photo here: http://danbrew.smugmug.com/pho...96014884_7UwD3-O.jpg

After screwing around with it at the range, I was finally able to safely get the gun unloaded. How? By taking the thing apart at the range. The range weenies were turning green and said "well, that's dangerous. you can't take that apart here." I said, "ok, I'll take it home." Then they say "Oh, wait, you can't leave the range with a loaded gun" and "You can't transport a loaded gun" (I'm stupid, I live in Illinois). It was a pretty interesting dialog and they finally figured out that they ought to let me take a whack at it as they couldn't figure out a way to get it open either. So... I take the thing apart and literally force the cylinder bolt forward and then swing the cylinder out and unload the thing.

I get home and try to figure out what the heck is going on with it and I discover that the cylinder bolt is just a tad forward of where it should be and the hammer is hitting it and the cylinder bolt is preventing the hammer from completing its rearward rotation. Hmmm. How the hell is that happening, I wonder. Perhaps the bolt plunger or bolt plunger spring is missing/bent? Nope. Works just fine. I even put a little oil on it and on the bolt itself and there is no friction. The thumbpiece wasn't too tight and binding, btw.

Hmmm. Once the cylinder is open, the bolt slides back and forth just like it should. Hmmm. Think about this a minute. The bolt must be pushed all the way to the rear when the cylinder is closed so that the hammer can do its thing. The bolt must be pushed all the way to the front to release the cylinder. It is really tough to push the bolt to the front. Hmmm. Maybe I should look at the center pin and the center pin spring on the cylinder. Uh huh. That's it. It's jammed up and pushing my thumb against the center pin on the cylinder does not result with an easy in and out motion the way it does with my other umpteen revolvers, including that new S&W500 I went out and shot today too (heh heh). It's like butter on every other revolver. It's like an old busted up crusty doorbell button that don't want to ring on this brand new $1000 gun. Ah ha. That makes sense. The center pin is spring loaded and is supposed to lock the cylinder bolt to the rear when the cylinder is closed and locked. The cylinder bolt is supposed to push the center pin (smooth as butter) to release the cylinder when loading/unloading.

While I've taken apart just about everything else on a revolver, I can't say that I've ever taken apart the extractor rod. Anybody have any easy tips on how to do this? I suspect the center pin is either bent or there's some stuff gunked up in the extractor rod. I see from the schematics that there is an extractor rod collar. What's a good way to get this off without screwing things up?

Also, I've half a mind (there's some truth to that...) to send the whole thing to Smith & Wesson and say "fix it or fork over a new gun". This is a brand new gun with maybe 75 rounds through it. It'll be obvious to Smith & Wesson that I've taken the gun apart as I scratched up the inside a tad prying the side plate off (I know...) and I did put a little scratch on one of the screws, yet I'm positive I've put it back together correctly (and I did put that stupid lock back in). And... it appears that the center pin is binding and there's nothing that pulling the guts out will do to the center pin - which is one reason I'm leaning towards not screwing with it and just sending it back to S&W. And will S&W deny warranty claims if they know somebody else has been inside the guts?

The thing that's really interesting about all of this is that it seems that this manifested itself after shooting full power loads with heavy bullets. I've shot a box of .44 special with no worries. But that just doesn't make any sense, I know. Not if the problem really is a binding issue with the center pin.

The reality? Smith & Wesson markets this as a gun to carry in the back county where you might encounter something that wants to eat you. I'd be pretty pissed if one round pisses the bear off and I can't shoot it (or myself) with the second round because of a problem with the bolt that prevents the revolver from cycling. Screw that.

Anyone have similar experiences with a Smith & Wesson revolver? Or specific experiences with warranty work? Or dealing with Smith & Wesson in general? I'm very disappointed in this gun and can't imagine trusting my life with it in a hunting or carrying and my ass is on the line situation.

The 500, btw? Pretty cool. I brought 5 different boxes of ammo to the range with me and went probably 20-30 rounds. The 500g Hornady round? Ouch. That hurt and I whimpered like a little girl. Some 275g rounds? No problem.

thanks,

danbrew
 
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My 329PD (and 325PD) has/have been flawless, thus far.

Button it back up, call S&W, they'll send a UPS shipping label, and should fix you right up.

Oh, and don't pry off sideplates......
 
I suggest you call S&W and talk to them about the problem. They should send you the UPS "call tag" to ship it back for them to fix. They've done it for me several times on 329PD's and other Smiths. I just always make sure I've replaced the Wolf rbs spring with a factory one before I return it.
 
Welcome to the forum.

You're obviously mechanically inclined and did an excellent job diagnosing the problem, but keep those Craftsman screwdriver the heck away from a S&W! You need proper fitting hollow ground screwdrivers, or you'll damage the screws. If you already know that and are only using it as a pointer - Never Mind!

With the front sideplate screw out, you can rotate the cylinder open, hold it with one hand and pull the yoke out the front. You probably know that too!
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The ejector rod assembly has left hand threads. S&W adopted that around 1960, so the rotation of the cylinder and any drag on the rod acts to tighten it (in theory, anyway). Place fired cases in the chambers so you don't torque the extractor. Don't use pliers on the ejector rod. There's a tool that clamps around the rod and gives you some leverage, but a drill chuck will work fine. You have the schematic and you know it's spring loaded, so ease it apart and note how the assembly fits together. Some members suggest taking guns apart inside a big clear plastic bag and that sounds like good advise to me. I've had parts go flying, but the cylinder assembly isn't a big deal. You could send it back, but you'll be without the gun for a week or too.

You might also make sure the front latch under the barrel is traveling freely and tensioned back. You Craftsman would work OK for that!
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I ought to let it drop, but just can't. Here's another problem initially blamed on the IL that was, in fact, not related in any way. I suspect most reported lock problems fit this category.
 
I ought to let it drop, but just can't. Here's another problem initially blamed on the IL that was, in fact, not related in any way. I suspect most reported lock problems fit this category.

I'm not willing to concede that my initial problem on ROUND NUMBER FOUR was not in fact a lock failure. I wish I had a camera with me on that day. The lock flag most definitely popped up after firing a 300g full power load. It took me about half an hour of screwing with it to get the lock back in its original position so that I could continue to fire the gun.

It is amazingly disconcerting to experience two significant function problems with:

* a new gun
* a very expensive gun
* a gun made by Smith & Wesson - although the more I read up on Smith & Wesson these days, perhaps I shouldn't be surprised?
* a gun marketed as a back country piece of mind carry gun

While I'm certain that folks hunt with the 329PD, that's not why I bought it. I bought it because I do find myself way back in the middle of nowhere and carrying a 26 oz revolver on the hip is loads easier than carrying a shotgun. Or any handful of other long/short arms. I'm also no S&W hater or basher, btw. I've had Smith's for years and have purchased two new revolvers in the last 30 days - the 329PD and a 500. Oh yeah, I like things that go boom too. Apparently I'm having some sort of midlife crisis that can only be solved by revolvers...

So... not sure what's going on with this gun, but two times is bad. I don't really have an opinion one way or the other about the IL, other than to say that the basic Smith & Wesson designed worked well for, what, about a hundred years or so? Then all of a sudden the IL lock is an improvement? That's lawyer speak for "We designed the gun to lock the action so that children couldn't be shot (and S&W subsequently sued). It's a shame that Mr. Jones elected to ignore common sense safety measures."

Thanks to all for the good advice and comments - I'll be sure to post here how it works out.

danbrew
 
What you're experiencing sounds similar to what I had happen with an EAA Windicator. That gun SHOULD have been crap and indeed was. I wouldn't expect that from a new S&W. I bought that Windicator for $250 from Gander and traded it back in within one week. I think I had about ten rounds through it and it completely jammed up. The "gunsmith" at Gander had to use a brass mallet to sledge-hammer it open. Then he handed it back to me and sais "Good as new". Ha ha ha. I told him I was not going to touch the gun again, let alone take it home with me. I sold it back (at a $100 loss!) and the manager felt sorry for me and gave me a pretty good deal on a used S&W 686+. Now that was a step up. But, I know sort of how you feel...brand new guns are not supposed to be screwed up and jam. They just are not. And what a learning experience for me - I didn't know you couldn't return the gun for a full refund. Live and Learn. B

PS, I would love to take a revolver apart like that and mess with the insides, but I'm going to try it on a cheap old clunker before I start with my 686 or 638. Good Luck, B
 
You can do what s&wchad said. It's easy to get the cylinder parts apart.

However, that is a brand new expensive gun. You might want to seriously think about sending it back to S&W so they can give it a complete going over. (Don't worry about the buggered screw or scratch. Just say you had to take the gun apart to get it unloaded.)

Also, I'd remove the lock entirely once the gun is fixed up. No way would I ever leave a lock in a high-powered lightweight S&W revolver.
 
I had almost exactly the same problem in a pre-lock 629 Mountain Gun. The front end of the center pin peened over causing it to bind up in the ejector rod. I suspect there was something wrong with the heat treat on the center pin. Smith & Wesson fixed it for me for free about 2 years ago, even though I had purchased the gun used. It hasn't reoccurred, but I've since backed off the loads I shoot through that gun a bit.
 
+1 on what sza said (The front end of the center pin peened over causing it to bind up in the ejector rod.).

Also, there is a collar on the center pin towards the rear of the cylinder (to keep the center pin from slipping out the rear of the cylinder I think). I had a 396 that locked up like you 329 did. I took it apart, and there was a burr on the aforementioned collar. Removal of the burr fixed the problem.

There might also be some mfg debris remaining in the center pin assy/cylinder interface keeping the center pin from moving freely.

In case 1 or 2, a new center pin should resolve the problem. A thorough cleaning will fix the third.

FWIW,

Paul
 
danbrew;
First of all, I'm sorry that you had to find out you had a problem with a new gun kind of the hard way.

Call Smith, explain your problem and they'll send you a shipping label. Don't try to solve this yourself - let them fix it.

Now, for the future. I have a bunch of Smith's, including three .44 magnums (model 29 and a 629
4" and a 629 Light Hunter). They are not noted for working well, nor long, with 300 gr full loads. It is hard on a full size 629 much less a 329. I find the recoil of a full load 310 gr bullet to be approaching brutal in the 4" gun and I sure don't want to shoot one in the 329.

On the other hand, I wouldn't at all feel "undergunned" with a fully loaded 240-250 gr Keith in whatever a problem a handgun was going to solve. After you get your revolver back you may want to reconsider shooting the heavier bullets (heavier meaning more than 250 gr) in that lightweight revolver. It will eventually pound it to pieces, at best.

Just a suggestion or two...

Dale53
 
To close out this thread, I sent the 329PD back to S&W and they had it for about three weeks. When it was returned there was a letter in the box explaining that they had replaced the cylinder plunger and spring.

I'm disappointed in the quality of this particular gun, although that hasn't stopped me from going out and buying a 329 Night Guard. And, uh, yes, I just had to shoot a few 300g bullets in that one too...! (Although that one will typically be fed .44 special rounds and maybe I'll carry .44 mag rds when I'm out doing stuff that might need a .44 mag round...)

:D
 
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