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gadrooning 10-19-2010 03:29 PM

problems with S&W Airweight 637-2
2 Attachment(s)
Normally I clean my guns after each practice session. However after the last session, I skipped the cleaning and did some dry fire and reload drills at home. Being the gun is still dirty, some obvious issues glared out. See pictures below. I noticed that my cylinder was rubbing against my forcing cone. I checked the rotation with the cylinder closed and it does not rub. There is no play back and forth when the cylinder is closed, however there is a little cylinder play back and forth in the open position. It only rubs when closing the cylinder. You can see this by the mark pattern on the face of the cylinder. I currently have about 800 to 900 rounds in this gun. Any ideas what could be causing this?

stalkingbear 10-19-2010 04:10 PM

It looks to me that the cylinder crane is out of adjustment. It not only rubbing on the cylinder but also the crane is rubbing. You COULD fix it yourself but I'd advise taking it to a gunsmith or sending it back to the factory.

Highpower 10-19-2010 04:53 PM


I'm not trying to say this is the cause in your case, but perhaps this would be a good opportunity for bear to write up a little something about "flipping" the cylinder open / closed on a revolver like they do in the movies? If he wants to that is..... :o

Coming from a pro like him and using your pics as an example might help prevent any newbies from encountering this kind of issue. Would make a good "sticky", IMO. Just a thought that hit me....

What do you think Mr. stalkingbear?

stalkingbear 10-19-2010 05:22 PM

Sounds good. I'll do a writeup later today or tomorrow. I'm getting ready to go to pain management doc right now.

Highpower 10-19-2010 07:17 PM


Originally Posted by stalkingbear (Post 370830)
Sounds good. I'll do a writeup later today or tomorrow. I'm getting ready to go to pain management doc right now.

Hey, first things first buddy. We got nothin but time...
Go take care of #1 - that's what really matters. :)

robocop10mm 10-19-2010 09:18 PM

Try the opposite end. Check for debris under the ejector star. carbon and unburned powder will end up there and cause the condition you are describing. Fore and aft movement in the open position is perfectly normal. There should be the slightest of movement when closed. For it to be rock solid is a cause for concern. Clean the gun carefully and thoroughly. Keep the underside of the ejector bone dry to prevent this build up in the future.

gadrooning 10-20-2010 01:33 AM

well I spoke with someone over at smith and wesson. They will be sending me a premailed fedex box to send the firearm in. I will keep you guys in the loop. I do keep my guns in tip top shape and typically clean them thoroughly after each shooting session. I use to swing my cylinder shut when I had my first revolver and learned the hard way. I always close the cylinder with my weak hand now. but I think bear writing up a article would be great. I did, however, notice after closer examination that the forcing cone has developed a sharp, burr edge on the outside diameter of the cone. The cylinder is rubbing when opening, not rubbing when its closing???? Is it possible that the constant pressure of being sheathed in a soft IWB holster has bent the crane or ejector rod. Also while examining, I also noticed that the rear sight groove is not centered on the frame. I can't believe this is OK in a smith and wesson quality control. The snub has always shot a little right, but I dismissed it as a bad trigger pull. I will post pics tomorrow on this.

LONGHAIR 10-20-2010 04:18 PM

Now you got me checking my gun with a fine tooth comb,so fare it looks good. Show those other pic's before you send the gun back,I can't see S/W sending a gun out with bad sights. But I guess it happens. I'v got so many things new in the box and to only find things missing or broken. Every thing MADE IN CHINA...:( nowdays:(

gadrooning 10-21-2010 12:12 AM

2 Attachment(s)
here is the pics of the sights on the airweight. I put red lines on the edges of the rear sight. You can clearly see the rear sight groove is not centered. May not look like much but on a such a short sight radius, this equates to a couple of inches at ten yards and several inches at 25yds.

bhp9mm 10-25-2010 10:16 PM

smith and wesson has very good customer service.

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