BayouSlide Posted September 2, 2010 Share Posted September 2, 2010 (edited) My new to me 9mm Trojan fell once to half-cock while I was running some practice drills today. First time that's happened in around 2500 rounds I've put through the pistol. Pistol probably has about 3500 rounds at this point. As near I remember, I was drawing and putting two shots on paper when the pistol failed to fire on the second shot when I pulled the trigger. I looked and saw the hammer at half cock. Ran another four magazines, including two with 10 shot strings in rapid fire and no further problem. The previous owner said the trigger had been lightly massaged by a member of this board and it has run like a top until now. The trigger runs about 2 lbs. 11 oz. on my Lyman gauge. Still a 1911 newbie here, so appreciate some guidance about what steps I should take next. Curtis Edited: 'cause I hate tipos typos! Edited September 2, 2010 by BayouSlide Link to comment Share on other sites More sharing options...
DWFAN Posted September 2, 2010 Share Posted September 2, 2010 Over travel screw needs to be backed out ? Link to comment Share on other sites More sharing options...
BayouSlide Posted September 2, 2010 Author Share Posted September 2, 2010 Over travel screw needs to be backed out ? Should I wait to see whether it occurs again or go ahead and back it out 1/16 of a turn now? Curtis Link to comment Share on other sites More sharing options...
DWFAN Posted September 2, 2010 Share Posted September 2, 2010 (edited) Over travel screw needs to be backed out ? Should I wait to see whether it occurs again or go ahead and back it out 1/16 of a turn now? Curtis Sorry, got it backwards. The screw needs to go in some. The trigger bow could be pushing the sear not allowing the hammer to hold when the slide cycles. Or of course it could be a hammer/sear issue. Edited September 2, 2010 by DWFAN Link to comment Share on other sites More sharing options...
yoshidaex Posted September 2, 2010 Share Posted September 2, 2010 When was the last time the trigger group was cleaned? Link to comment Share on other sites More sharing options...
BayouSlide Posted September 2, 2010 Author Share Posted September 2, 2010 When was the last time the trigger group was cleaned? Yesterday evening. Cleaned, oiled and function checked after reassembly. Ran 100 rounds or so before the problem cropped up. Curtis Link to comment Share on other sites More sharing options...
yoshidaex Posted September 2, 2010 Share Posted September 2, 2010 Does the trigger pull still read 2 lbs, 11 oz. on your Lyman gauge? Maybe a slight adjustment of the sear spring is in order. Link to comment Share on other sites More sharing options...
BayouSlide Posted September 2, 2010 Author Share Posted September 2, 2010 Over travel screw needs to be backed out ? Should I wait to see whether it occurs again or go ahead and back it out 1/16 of a turn now? Curtis Sorry, got it backwards. The screw needs to go in some. The trigger bow could be pushing the sear not allowing the hammer to hold when the slide cycles. Or of course it could be a hammer/sear issue. Would be easy to adjust it in 1/16 turn as a precaution. The trigger has probably broken in fully now and could need a slight adjustment. This will also decrease the overtravel slightly, correct? Curtis Link to comment Share on other sites More sharing options...
BayouSlide Posted September 2, 2010 Author Share Posted September 2, 2010 (edited) Does the trigger pull still read 2 lbs, 11 oz. on your Lyman gauge? Maybe a slight adjustment of the sear spring is in order. Yup, checks out the same a yesterday, around a 2 lbs, 11 oz. average, maybe an oz. or two lighter, but pretty close to what it was before. I considered that perhaps the sear spring might need adjustment. The trigger has massaged stock internals. Now that Bobby Keigans is just about finished with my Limited gun, I'm thinking of sending him the Trojan to rework the trigger anyway. Just don't want any surprises for the match this Sunday. Curtis Edited September 2, 2010 by BayouSlide Link to comment Share on other sites More sharing options...
DWFAN Posted September 2, 2010 Share Posted September 2, 2010 Sear spring and OT screw would be what I checked first. Beyond that.. 'smith time. Link to comment Share on other sites More sharing options...
yoshidaex Posted September 2, 2010 Share Posted September 2, 2010 Before you start adjusting, have a read here Brazos Trigger Tuning tips Link to comment Share on other sites More sharing options...
BayouSlide Posted September 2, 2010 Author Share Posted September 2, 2010 Before you start adjusting, have a read here Brazos Trigger Tuning tips This article and his recent article in Front Sight are right in front of me on my work bench. When I hold the hammer back, pull the trigger and rock the hammer back and forth, I don't feel any contact between hammer and sear, FWIW. Curtis Link to comment Share on other sites More sharing options...
BayouSlide Posted September 2, 2010 Author Share Posted September 2, 2010 Appreciate all the info and ideas, guys. Curtis Link to comment Share on other sites More sharing options...
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