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S&W-Smithing Maintenance, Repair, and Enhancement of Smith & Wesson and Other Firearms.


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Old 09-10-2021, 04:08 PM
Shipbuilder Shipbuilder is offline
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My model 15, .38 spl, 4", cylinder will not close properly. Suggestions? Thinking of sending to S&W for repair.
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Old 09-10-2021, 05:07 PM
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Very possible that the ejector rod has worked loose and backed out. If its a model 15-1 or later, it will have left hand threads on the rod. Check it to be sure its not the culprit.
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Old 09-10-2021, 06:39 PM
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Or the little screw on the right side under the cylinder may too loose or too tight
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Old 09-10-2021, 07:52 PM
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Check the spring loaded latch mounted in the boss on the underside of the barrel. It should move back and forth with spring tension being the only resistance.
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Old 09-11-2021, 08:03 AM
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Thanks for the tips, I will try them.
Jim
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Old 09-11-2021, 09:52 AM
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Debris under the extractor?
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Old 09-11-2021, 10:23 AM
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The earlier posts have covered the most likely causes.

1. Ejector rod loose, backed out enough to interfere with the detent pin where the front of the rod locks into place under the barrel.
2. Debris build up under the ejector star at the rear of the cylinder, interfering with engagement of the cylinder lock.
3. Function of the cylinder lock (left side of frame behind cylinder, thumb piece connects to a sliding bar under spring pressure to operate the cylinder locking mechanism at the rear of the cylinder). Should operate freely and have good spring tension.

Beyond these more obvious things I would start thinking about improper assembly or damaged parts (bent ejector rod, broken or jammed spring at front or rear latches, cylinder crane bent).

It is becoming more difficult to find gunsmiths (in general) and those familiar with revolver mechanisms (in particular). If you are not comfortable with doing the disassembly and examination yourself it might be a good idea to ask around at FFL dealers in your area for recommendations. There are a few older gunsmiths, perhaps retired and doing a little referral work out of their homes. For an experienced gunsmith the problem should be identified in a few minutes time.

I have a small supply of vintage S&W K-frame parts (springs, pins, internals, hammers, triggers), if you find that yours needs something send me a PM and I'll try to help.
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