Raudi Posted January 22, 2009 Share Posted January 22, 2009 Hi folks, I had an incident off hammer follow. I was able to trace it to a lack of pressure on the disconnector. So I set up the spring with more tension and monitored it closely. After having reinstalled the spring it seemed to me, as if the disconnector was loosing pressure again. My conclusion was, that a new sear spring is in order, since it is loosing pressure. Please confirm or are there other problems that could lead to a decrease in pressure on the disconnect. Thanks for your help! Link to comment Share on other sites More sharing options...
MadBomber Posted January 23, 2009 Share Posted January 23, 2009 It sounds as though you may have a hammer and sear issue. try checking that out. Link to comment Share on other sites More sharing options...
Pat Miles Posted January 23, 2009 Share Posted January 23, 2009 What type of gun is it happening to. If it is an S_I polymer gripped gun make sure the grip screws that attach the grip to the frame are tight. Found that problem with my gun today. Interesting that the disconnector tang is losing pressure as it has to provide very little due to it's tiny movement. If your gun is a Para keep in mind that they require a unique sear spring that is longer in overall length. CYa, Pat Link to comment Share on other sites More sharing options...
Raudi Posted January 23, 2009 Author Share Posted January 23, 2009 What type of gun is it happening to. If it is an S_I polymer gripped gun make sure the grip screws that attach the grip to the frame are tight. Found that problem with my gun today. Interesting that the disconnector tang is losing pressure as it has to provide very little due to it's tiny movement. If your gun is a Para keep in mind that they require a unique sear spring that is longer in overall length.CYa, Pat Thanks for the answers. The guns is a plymer gripped STI with a Dawson Signature trigger group installed. I'll check the grip screws, but I don't see, how grip screws or hammer sear combination could change the pressure on the disconnector. And I am positive, that there is a change there. But I'll check nevertheless. Thanks again. Link to comment Share on other sites More sharing options...
stevepitt Posted January 23, 2009 Share Posted January 23, 2009 Check and make sure the hammer strut is not contacting the disconnector leaf. There will be a shiny spot on the spring if it is. That's not too uncoommon, depending on the brand of strut and the bend in the spring. Steve Pitt Link to comment Share on other sites More sharing options...
Pat Miles Posted January 23, 2009 Share Posted January 23, 2009 As far as changing the sear spring pressure consider what the sear spring is anchored in...the slot in the polymer grip. The (from the rear) left and center leg of the sear spring act on the sear and disconnector which are "mounted" in the frame with the sear pin. Any change in the relationship of the grip and the frame will cause a change in sear spring pressure on the sear and the disconnector. Loose srews will cause this problem. Not saying this is your problem but could cause it and it takes about 30 seconds to check. CYa, Pat Link to comment Share on other sites More sharing options...
bkeeler Posted January 24, 2009 Share Posted January 24, 2009 (edited) Also make sure the grip is not cracked this will also cause hammer follow. Is it doubling or falling to halfcock? BK Edited January 24, 2009 by bkeeler Link to comment Share on other sites More sharing options...
midvalleyshooter Posted January 24, 2009 Share Posted January 24, 2009 Brownells has a great article by Jack Weigand about setting up a 2 1/2 pound trigger on a 1911. The instructions for setting up the spring pressure for the trigger group is the best. Check it out: http://www.brownells.com/aspx/NS/GunTech/N...p;t=1&i=349 Keith Link to comment Share on other sites More sharing options...
Raudi Posted January 24, 2009 Author Share Posted January 24, 2009 Thanks for all the answers. Checked the screws and they look tight (thanks for explaining what they have to do with following). Grip doesn't seem to have cracks. The hammer follows all the way down, but without the firing pin striking the primer. The reason I know it is the disconnector tension is, that the disconnector wasn't going up, until I added more pressure on it. Then it ran fine, and the trigger (takeup) got lighter and lighter again, until it started following again. After readjusting the spring the whole game starts over again. As a matter of fact the gun doesn't follow right now, but I think it is only a matter of time before the problem is going to resurface. And by the way, having to shoot the gun with so much tension on the takeup is a problem, even if it's not following. I have yet to check on possible contact between strut and sear spring, but that sounds reasonable to me. Thanks again! Link to comment Share on other sites More sharing options...
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