Rufus Hurt Posted July 9 Share Posted July 9 Hi, One of my old Ruger Vaqueros (I've had this gun for around twenty years) has suddenly developed a problem. When I attempt to cock the hammer it moves back about half an inch and locks up there. The cylinder stop does not move down into the grip frame and the hammer will not move backwards. When I release the hammer and attempt to cock it again it cocks just fine and may continue to do so three of four times before locking up again. The transfer bar is not broken, the cylinder stop is fairly new, the cylinder stop spring and plunger are new. What is causing this? Can you offer a suggestion? Thanks. Lil' Weasel SASS 61585 Link to comment Share on other sites More sharing options...
Eyesa Horg Posted July 9 Share Posted July 9 Be sure the cylinder base pin is in all the way and the little plunger on the end is free. Link to comment Share on other sites More sharing options...
Dilli GaHoot Galoot Posted July 9 Share Posted July 9 My first thought would be dirty and dry, have you cleaned and lubed it? Link to comment Share on other sites More sharing options...
Rufus Hurt Posted July 9 Author Share Posted July 9 Yep. I clean it after every match. It is well lubed and greased. Link to comment Share on other sites More sharing options...
Phantom, SASS #54973 Posted July 9 Share Posted July 9 Grease is bad... ;-) Phantom Link to comment Share on other sites More sharing options...
Mister Badly Posted July 9 Share Posted July 9 Hammer plunger? Link to comment Share on other sites More sharing options...
Snake-eye, SASS#45097 Posted July 9 Share Posted July 9 Sounds like the transfer bar is running into the firing pin which would stop the hammer from moving all the way back. Make certain that the plunger on the end of the cylinder pin is functional . Link to comment Share on other sites More sharing options...
Rufus Hurt Posted July 9 Author Share Posted July 9 Checked. Removed it, lubed, checked the spring and plunger for damage . All is good. moves freely in and out. Link to comment Share on other sites More sharing options...
Rufus Hurt Posted July 10 Author Share Posted July 10 The first thing I thought was that the transfer bar was getting caught under the firing pin but it is not. Thanks for your suggestion though Snake Eye. I am going to look closely at the end of the cylinder pin though. Link to comment Share on other sites More sharing options...
Pb Mark Posted July 10 Share Posted July 10 Assuming the base-pin is OK: Push in on the base pin while trying to cock it. Pull out on it while trying to cock it. See if it cocks normally when pushing in the base-pin. Link to comment Share on other sites More sharing options...
Assassin Posted July 10 Share Posted July 10 Is the strut installed properly? Link to comment Share on other sites More sharing options...
Barry Sloe Posted July 10 Share Posted July 10 Take out the base pin and cylinder. Can you cock it now? BS Link to comment Share on other sites More sharing options...
The Original Lumpy Gritz Posted July 10 Share Posted July 10 It's the new cylinder stop. It needs fitting. Why did you change it? Put the old one back in and try it. Link to comment Share on other sites More sharing options...
Pb Mark Posted July 10 Share Posted July 10 More on the base pin. Pushing and pulling can check the scallop cut that holds it in place. Forgot to mention, double check the base pin latch to make sure it is not unscrewing itself. Use the proper center cutout screwdriver or bit for this check. Belt Moutain sells improved pins and latches. Is it locking up with the cylinder stop locked into one of the cylinder cutouts? If so, probably not the base-pin per the above Lumpy fitting issue. Interesting situation - will enjoy learning what the issue is. Link to comment Share on other sites More sharing options...
Garrison Joe, SASS #60708 Posted July 10 Share Posted July 10 13 hours ago, Rufus Hurt said: the cylinder stop is fairly new, the cylinder stop spring and plunger are new. Gunsmith rule 13 - If some parts have been changed, tuned, monkeyed with recently - the problem is likely with the parts that were changed, or how they have been (mis) installed. good luck, GJ Link to comment Share on other sites More sharing options...
Smokey P. Colt Posted July 10 Share Posted July 10 Replace the base pin spring with a stronger one from Wolff gun springs. Link to comment Share on other sites More sharing options...
Long Gulch, SASS #53035 Posted July 12 Share Posted July 12 I'm with Mr Badly on this one. The problem sounds eerily familiar. Several years ago I had a similar problem and it ended up being the hammer cross pin. The pin was chewed nearly in half by a poorly fitting plunger. I replaced the plunger, cross pin and spring and all was good. It would be good to know your fix for the problem. Long Gulch Link to comment Share on other sites More sharing options...
Mister Badly Posted July 12 Share Posted July 12 That's what happened to mine too Link to comment Share on other sites More sharing options...
Uncle Ethan # 94321 Posted July 12 Share Posted July 12 Yep what Mister Badly and Long Gulch said. The tip of the pin on mine had broke. I could get it to cock for ten rounds or so, them it would act up. Link to comment Share on other sites More sharing options...
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