So I decided to take the plunge: the 1911's hadn't been breeding in my gun safe quickly enough and so I decided to build one and help them along (once, I'm done, I'll post a thread on how things went). The brief version is that the firearm is built, completed, and is happy.
The standard function check that I was taught back in my Army days goes as follows:
1: Clear the weapon.
2: With the weapon clear and hammer down, pull the hammer completely to the rear or rack the slide and engage the thumb safety. Attempt to pull the trigger. The hammer will not fall.
3: Disengage the thumb safety and take an abnormal grip. The hammer will not fall.
4: With the thumb safety disengaged, take a normal grip on the the weapon and pull the trigger. The hammer WILL fall.
5: With the trigger pulled to the rear, pull the slide to the rear and release. The hammer will not fall. Release the trigger. There will be an audible reset. Pull the trigger, the hammer will fall.
6: Pull the hammer back to half rooster (See what I did there, Valinda? ) and pull the trigger with a normal grip. The hammer will not fall. (I know, unless you have a series 80).
The weapon passes all of these tests.
7: Pull the hammer back to full rooster. Push back on the front of the barrel and slide to engage the disconnector. The hammer will not fall.
HERE'S where the problem happens.
When I fully rooster the hammer and push back on the front of the slide and barrel, the hammer will fall if I pull the trigger. All contact faces on the sear and disconnector have been polished except for the sear point of contact with the hammer: as to why I didn't stone the sear where it contacts the hammer, I'll talk about that when I do the full post on the build process. At this point, everything feels smooth and free of grit.
So, are there any thoughts out there as to likely culprits or hints on things I should check?