Bisley Joe Posted September 4 Share Posted September 4 HOW-DEEEE! I recently purchased two Cimarron 1851 Richards Mason conversions (38 special/Stainless Steel/7.5" barrels). One of them binds up sometimes when I cock it. I shot the first one and it's fine. The second one I have not yet shot, but upon cocking it, the action is smooth for two or three tries, then it binds up for two or three tries, then back to normal. Sometimes it is smooth for the whole cycle of rotating the cylinder. Sometimes I only feel a little resistance, and other times a lot. Doesn't seem to have a pattern: kind of random. Not sure whether to send it back, or attempt tuning it up myself based on the Larsen E. Pettifogger files. Any input appreciated. Thanks, Bisley Joe Quote Link to comment Share on other sites More sharing options...
Cheyenne Culpepper 32827 Posted September 4 Share Posted September 4 New? Send it back 2 Quote Link to comment Share on other sites More sharing options...
Diamond Curly SASS#57086 Posted September 5 Share Posted September 5 I have the same revolvers and had the same issue. Replaced the wedge with a different one and no more problems. DC Quote Link to comment Share on other sites More sharing options...
Abilene, SASS # 27489 Posted September 5 Share Posted September 5 Make sure the wedge isn't in too far, can be finicky on these conversions. Also, it may be nickle or in the white or silver plated, but I guarantee it is not stainless. Quote Link to comment Share on other sites More sharing options...
Tully Mars Posted September 5 Share Posted September 5 The best fix is to correct the arbor length. Larsen's articles describe how to do that. My RM's have Larsen correction, the 72's have been drilled and tapped and a allen screw installed with Tight Lock for adjustment of the arbor length. I doubt sending it back will result in a correction. 2 Quote Link to comment Share on other sites More sharing options...
Still hand Bill Posted September 5 Share Posted September 5 8 minutes ago, Tully Mars said: The best fix is to correct the arbor length. Larsen's articles describe how to do that. My RM's have Larsen correction, the 72's have been drilled and tapped and a allen screw installed with Tight Lock for adjustment of the arbor length. I doubt sending it back will result in a correction. This is the correct fix. Any open tops I have handled all have arbor length issues. I easily fixed mine by tapping them 4-40 and then installing a button head screw. I shim underneath to get the correct spacing. Now the wedge can be tight and barrel to cylinder spacing is consistent. 2 Quote Link to comment Share on other sites More sharing options...
Preacherman Posted September 5 Share Posted September 5 1 hour ago, Still hand Bill said: This is the correct fix. Any open tops I have handled all have arbor length issues. I easily fixed mine by tapping them 4-40 and then installing a button head screw. I shim underneath to get the correct spacing. Now the wedge can be tight and barrel to cylinder spacing is consistent. I concur and beat Coffinmaker!! Yes. However if new I'd talk to Cimarron first before you void the warranty. Quote Link to comment Share on other sites More sharing options...
Griff Posted September 5 Share Posted September 5 1st, I'd back off the arbor tension by backing out the wedge a bit... measure the cylinder/barrel gap... and try cycling it more. If that fixes the issue, consider correcting the arbor length. But 1st, I'd carefully look at how/where the bolt engages the cylinder notch, to ensure you have enough room to move, (probably do, as most notches are quite a bit longer than actually necessary). I run 2nd Gen Colt 1851s (Uberti major parts), and all have the short arbor syndrome, but I've never bothered correcting them, I'm just more careful about my wedge engagement & cylinder gap. And while not in the winner's circle, or a podium finisher, they run just fine (I'm just not comfortable running fast, preferring a more deliberate, slower rate of fire when shooting duelist). I, like just about any Frontiersman (even those shooting the vaunted ROA's), will have an occasional hiccup, bad cap, etc. But nothing that if I used those sissified suppository cylinders would happen. Quote Link to comment Share on other sites More sharing options...
Colorado Coffinmaker Posted September 5 Share Posted September 5 (edited) Bisley Joe, Uberti manufacturer'd Open Top guns come from the factory with an abysmal Barrel to Arbor fit. No amount of fiddling with the wedge will fix the issue. You ned to avail yourself of Larsen E. Pettifogger's tutorial for tuning the Open Top. Once you correct the Barrel to Arbor fit, you will need to "Fit" the wedge, only working on the flat side. Until corrected, every time you take the guns apart to clean, you get a different gun when you put it back together. Correct the Barrel to Arbor fit BEFORE you do anything else to the guns. Hey Preacherman!! You beat me to it!! Good Job!! If you send the guns back, you will get them back with "Within Specifications" and no correction. Edited September 5 by Colorado Coffinmaker Add a little tid bit 1 Quote Link to comment Share on other sites More sharing options...
Rooster Ron Wayne Posted September 5 Share Posted September 5 Loaded or unloaded ? Quote Link to comment Share on other sites More sharing options...
Prairie Dawg, SASS #50329 Posted September 5 Share Posted September 5 (edited) Bisley Joe: On an earlier post about this same problem, Coffinmaker gave J. C. Smoke the same recommendation, but also said this: There is also an ultra simple, ultra quick and ultra cheap way to make a temporary fix. Drop a #10 stainless Split washer down the barrel bore and put the gun together. You WILL have to refit the wedge. Edited September 5 by Prairie Dawg, SASS #50329 Quote Link to comment Share on other sites More sharing options...
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