Stock 2 trigger not activating hammer

[Ugafred]

Hey Gents,

 

First time poster, long time reader!  I know you guys have unlimited knowledge so I figure I ask you guys before bringing to a gunsmith.  
 

my stock 2 has been flawless through 5k rounds.  It recently just started to run into this issue where I pull the trigger in DA and the hammer will not go back.  It looks like something is slipping?!  SA still looks normal.  I just changed out the trigger spring and to see if it helps but it did not.  Any guidance on why this is happening and how I can fix it is greatly appreciated! 
 

below is the video of what I’m talking about:

https://www.dropbox.com/sh/ms24frzijewqvbh/AAC35xNzKtfIlyWGCtK0jDKia?dl=0

Edited July 31, 2022 by Ugafred
Add more info

[Polymer]

Make sure trigger bar plunger is pushing trigger bar up all the way constantly.

Look at trigger bar where it contacts interruptor to see if it's worn.

[N7VY]

Looks like your trigger spring is doing it’s job. Question now is when you took it apart did you miss something? When you pull the hammer back to go single action does it work correctly? If SA is working then maybe the disconnector isn’t working correctly. 
 

Memphis mechanic made a series of excellent videos on working on Tanfoglio’s. Take a look at this to see if you reassembled it correctly. 
 

 

 

[DBX1987]

As said above, something is off with the disco and the trigger bar. Check it out.
 

[Yagi]

Looks like you are running a bolo. Check your Interrupter.

[Ugafred]

thanks for the tips so far!  Everything looks normal to me.  It has to be the plunger spring not pushing the trigger bar up enough right?  
 

I would think this only started to happen if a spring became too weak.  I would not think this is due to metal pieces being too worn.

 

here is a video of the internal

https://www.dropbox.com/s/i4uawpmy35mgu2t/internal.mov?dl=0

[N7VY]

Trigger bar plunger spring looks fine to me. Did you remove the sear cage?

[Igarciatf]

I also think it has to be related with the disconector/sear, try putting the original disconnector  again. The trigger spring is doing his job wich is returning the trigger to his initial position. Keep us updated.

[Ugafred]

Thanks guys, I put the stock disco back in and pull is back to normal . The bolo I have looks to be normal.  Any ideas as to why it’s not allowing me to pull the DA?

 

all my findings are in the link below

 

https://www.dropbox.com/sh/ms24frzijewqvbh/AAC35xNzKtfIlyWGCtK0jDKia?dl=0

Edited August 4, 2022 by Ugafred

[Polymer]

You need to fit bolo. Fit it so the DA works. The contact point of trigger bar is not fully engaging the ear of bolo to push hammer back in DA. The inner curve of bolo leg needs to be fitted so trigger bar travels a bit more forward. There are vids and instructions on this forum how to do that. Does this make sense?

[Ugafred]

The crazy thing was that it was working fine for 5 years since I have had the gun.  Now I need to fit it?  
 

I will try it but it’s odd to me why it started to happen 

[Polymer]

If it was working fine, you need to check trigger bar where it contacts bolo ear to see if it's worn/rounded off.

[Ugafred]

On 8/4/2022 at 11:31 PM, Polymer said:

If it was working fine, you need to check trigger bar where it contacts bolo ear to see if it's worn/rounded off.

 
will do.  I never knew the trigger bar could wear out.  Which bar is the best?

[Polymer]

The bars are the same. Xtreme one just has a coating. The bolo metal hardness is way superior vs the trigger bar metal. The bar will definitely wear first. 

Also with using the bolo, it is best to use the factory trigger plunger spring and not a super light one. Bolo needs more upward force of trigger bar to push against. Lighter spring will slip the trigger bar underneath bolo when pulling in double action.