GP100 fails to close/lock?

J

Jack_Worm

Inactive
I´m thinking of bying a Ruger GP100 but a few times while plinking it failed to close/lock the cylinder.

If closing the cylinder by pushing it closed with the thumb placed on the unfluted part of the cylinder it stops 2mm before it is locked. Looks as if it gets stuck somewhere around the ejector rod; Part KH03100?

While stuck like that, if I push ever so light on the ejector rod it closes with a nice "click" sound.

If closeing the cylinder while pushing on the "flip-out" part where the cylinder is seated the revolver allmost allways closes as it is supposed to.

Anyone have any experience?

The revolver shoots well and feels really tight.

Regards

/JW


http://www.ruger-firearms.com/Firearms/PDF/14.pdf (page 31)
 
Possibly a burr on the extractor face itself. I had a Smith that did that,and had a gunsmith file it off in about five minutes....
 
Are you saying that it won't close at all once it stops or that it's difficult to push it past that point?
 
I have had that happen too. Check the ejector rod. Mine was loose and backing out. I removed it and put nail polish on the threads and reassembled. No problems since. It can happen to S&Ws or Colts or Taurus revolvers.
 
"Are you saying that it won't close at all once it stops or that it's difficult to push it past that point?"

Pushing on the unfluted part of the cylinger doesnt make it close no, but pushing on the ejectorrod makes it close right away.

Pappy John, I took it apart and cleaned it 100%.

Sir William, that I didnt try (mayb ´cos I usually dont have nail polish @ home ;) )

I´m waiting for the licens right now so the revolver isn´t at home so I cant try clean it / nail it :(

Thanx

JW
 
Sir William,

The GP100 ejector rod is not threaded like the S&W/Taurus guns.

Frankly I'm stumped--I can't see what could cause a problem like this.

By the time the cylinder is within 2mm of closing, there's not anything left for it to hang up on that I can see...

Jack_Worm,

I know this is a really stupid question, but is it possible that you weren't shooting a GP100?
 
I misread that. Sorry. I wrote my reply just KNOWING you had a older Security Six. If it is a GP-100 357 Magnum, I am stumped.
 
Nope, it WAS a 6" "white" GP100 .357magnum *lol*. Serial 171-021xx.

What about the part KH03100? Anyone with a GP100 needed to replace this one?

/JW
 
Jack Worm,

KH-03100 is the front cylinder latch.

If it's causing the gun to hang up, then the problem is almost certainly the center pin lock KE-53. That's the thin steel rod that sticks out of the very center of the cylinder at the back.

As the cylinder closes, the action of the closing cylinder causes the center pin lock to be pushed forward into the cylinder. Pushing that pin forward causes the forward latch (KH-03100) to retract, allowing the cylinder to close.

This is basically the same thing that happens when you press the cylinder release button to swing out the cylinder, except that the cylinder release button (Ruger calls this the "crane latch"--part T or H-00900) is what pushes the center pin lock forward.

I'm still confused--if the cylinder won't close because of a worn center pin lock, then it stands to reason that it should be difficult to open as well.

Try this check.

Swing out the cylinder. Operate the cylinder release button (crane latch)--sort of push it in and forward--while you're looking at the breechface. You should see a small pin that recedes into the breechface when you operate the button and comes forward to be perfectly flush when you let go of the cylinder release button.

If that pin comes farther forward than perfectly flush with the breechface then that is the problem.

The center pin lock is catching on that pin (which is part of the cylinder release button/crane latch) and can't move past it until you fiddle with the cylinder release button/crane latch.

Is it possible that you have been using the term "ejector rod" when you mean to say "crane latch" or "cylinder release button"? The ejector rod is part number H-02300, the crane latch or cylinder release button is T or H-00900.

Or perhaps you are using the term "ejector rod" (part number H-02300) to refer to the "front cylinder latch" which is part number KH-03100?

The reason I ask is that I can't see any possible way for the ejector rod to allow the cylinder to close if it's stuck.
 
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