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Discussion Starter · #1 ·
Hammer cocked- Thumb safety on- grip gun and release and grip safety doesnt spring back out all the way-stops about halfway and is not disengaged- Release thumb safety, grip safety springs back out as normal- Something is binding the grip safety when the thumb safety is on - any ideas? thanks, larry
 

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Sounds like an out of spec/out of round thumb safety or a lot of gunk in the hole through the grip safety..

Are these the stock parts or did you fit new ones?
 

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Unload the pistol. Dissamble the slide from the frame. With the hammer down, and the muzzle facing left punch out the pin holding the hammer spring housing located on the bottom of the grip. Slide the housing out. Take the sear spring out. Cock the hammer, and work the safety loose and remove the grip safety. Inspect whether there are any burr on the safety and bearing surface on the frame. Bend the right hand leaf (the shortest one, of the sear spring. While you are at it give it a thorough cleaning and reoil the parts. Then reassemble. Hope that will help. While you are at it, you might want to check for burrs on the inside of the safety before you reassemble.

For detail dissambly check out this site http://www.m1911.org/m1911dt.htm
 

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Discussion Starter · #4 ·
With right side ambi taken off ,and safety applied, it works fine- with right side put back on,and safety applied, GS still hangs up----- another mystery larry
 

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Polish the shaft on the right ambi, when it joins with the left side it`s expanding too big and binding in the hole of the grip safety,polish this hole also...
 

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Sounds to me like the right side ambi safety
when installed on the gun is pulling the grip safety down and forward changing the nose of the grip safety adjustment. Check the right side bearing surface of the grip safety where it bears on the right side frame tang with some ink. Then check the diameters of both sides of your "ambi" to see if they are equal...And also, its not written in stone that the safety holes in both frame tangs will be in exact alignment and perpendicular to the frame!
The simplest way to fix it is to make sure the grip safety rotates smoothly with no binding, with both sides of the ambi in place. Then ink up the sides of the nose as well as the nose of the grip safety and clearance the sides first and then readjust the nose.
 

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Gunny nailed it, the Shaft of your thumb safety when put together is binding your grip safety, dress it down slightly with a very fine file or polish!
Chris from Va
 
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