PaladinPrecision Posted March 16, 2017 Share Posted March 16, 2017 I am pretty sure there shouldn't be preload on the hammer when it's in the "hammer down" position. However my STI marauder has preload. Do you remove material from the hammer strut to remedy? Link to comment Share on other sites More sharing options...
drewbeck Posted March 16, 2017 Share Posted March 16, 2017 If the slide is on the mainspring will be in slight compression which puts the hammer in this preload condition. If the slide is off and the hammer goes forward beyond vertical the spring will typically not have any compression and the hammer will float. if there was no preload the hammer would have some amount of slop and play in it which you don't want to have. In theory if the hammer was loose, and the gun was bounced violently there could be enough movement to strike the firing pin. You also want enough constant tension to keep the sear, hammer, disconnect from bouncing around internally. It would be minimal with the sear spring tension but still undesirable. Link to comment Share on other sites More sharing options...
PaladinPrecision Posted March 16, 2017 Author Share Posted March 16, 2017 I was speaking in terms of when the pistol is assembled with slide, off safe,and after you have dropped the hammer and its resting on the firing pin stop. I did have some consistency issues with the disconnector reseting but I traced that to the bore the disconnector travels in wasn't the same / correct diameter through the frame. The proper size gauge pin went in about 0.100 from the top and stuck. The reason I asked was a smith on youtube said something about it and I noticed it on my gun. It's a factory STI gun, is that something that should be tuned or left alone? Link to comment Share on other sites More sharing options...
drewbeck Posted March 17, 2017 Share Posted March 17, 2017 Normal and nothing to worry about or mess with Link to comment Share on other sites More sharing options...
BeerBaron Posted March 17, 2017 Share Posted March 17, 2017 Yes at rest against the firing pin stop the hammer should be undee tension. This can be affected by the length of the hammer strut. For the reasons drewbeck pointed out you want the hammer to be resting firmly against the firing pin stop. With ts the slide off it'll probably go limp before touching the frame but again that's a function of the length of the hammer strut and the frame. Link to comment Share on other sites More sharing options...
drewbeck Posted March 17, 2017 Share Posted March 17, 2017 4 hours ago, BeerBaron said: With ts the slide off it'll probably go limp before touching the frame but again that's a function of the length of the hammer strut and the frame. Good excuse for the wife as well....it's a problem with the frame, not the hammer strut Link to comment Share on other sites More sharing options...
BeerBaron Posted March 17, 2017 Share Posted March 17, 2017 Yes my hammer is the perfect length. It's the 'relief cut' at the back of the frame that's too deep!! Link to comment Share on other sites More sharing options...
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