Author Topic: Trigger Pblm, Star Firestar (Read 589 times)

Castaway · « **on:** May 10, 2004, 02:26:00 AM »

Took my 40 S&W Star Fire star to the range yesterday. Fired abouut 8 rounds, then the trigger failed to drop the hammer. Thinking maybe the magazine safety was malfnctioning, I removed the right grip and confirmed the trigger transfer bar was sliding full length under the safety tab when the magazine was inserted. Removed the slide and inspected the cut-out for the disconnector to see if it was fouled and not letting the disconnector fully return when in battery, it was clean and there was positive spring pressure on the disconnector. Checked the innards around the sear, when the slide was removed, the transfer bar tripped the sear pusher whech in turn tripped the sear, allowing the hammer to fall. The sear spring is intact and seated and there was no binding. Reassembled, dry fired a couple of times and the hammer dropped, the the whole thing started agaiin. Any more suggestions before I do the disassembly thing?

gunnut69 · « **Reply #1 on:** May 10, 2004, 07:21:00 AM »

Check for a cracked trigger or the transfer bar bent and dragging. Check the magazine also as I have seen them split and the expanding magazine drag on the sear bar.. Burred disconnector...
Sorry just not much info to work from.. Sounds like grasping the grips causing the sear bar to lock..

Castaway · « **Reply #2 on:** May 10, 2004, 11:07:45 AM »

gunnut69, none of the three situations apply, checked them thoroughly, I'm baffled.

gunnut69 · « **Reply #3 on:** May 11, 2004, 05:01:05 AM »

Are you certain the slide is fully into battery? Check for broken or partially sheared pins. This is certainly a bit strange. These are usually reliable little autos.. How often does this happen? Any rhyme or reason, after 3rd shot that sort of thing? Try turning the peice upside down and dropping the hammer.. Be dang sure and keep us informed, this is one of the interesting ones.

jhm · « **Reply #4 on:** May 11, 2004, 02:04:31 PM »

Castaway : Check the spring and ball bearing that put (downward) preasure on the trigger transfer bar from the trigger that is suppose to put up-ward preasure on the rear of the transfer bar to keep it engaged with the sear, you will have to remove the grip panels the mag. release which is a quarter turn screw on the right side remove trigger assm. being careful remove transfer bar from trigger smal pin dont lose you will see ball bearing and spring you may gave to replace the spring or have it done by a gunsmith. I had the same problem with a firestar in 45 acp all is good now.

JIM

Castaway · « **Reply #5 on:** June 25, 2006, 08:15:36 AM »

After 2.5 years I hthink I've solved the problem. Took the pistol to the range yesterday to remind myself what the problem was, got off one shot then it failed to drop the hammer. Unloaded it and brought it home. After a long time looking around the innards I finally found that when pulled slightly out of battery it would drop the hammer. There was a hard bind that wouldn't allow the firing pin safety to lift the firing pin safety spring plunger. I removed the rear sight and immediately I saw a piece of metal that had chipped off of the firing pin safety and was interferring with free movement. Removed the chip and it seems to work fine now. Will take it to the range later this week and see if my problems are over.

Castaway · « **Reply #6 on:** June 26, 2006, 03:35:04 AM »

Fixed! Fired it this morning and ran a box through it without any problems.

gunnut69 · « **Reply #7 on:** June 26, 2006, 10:45:44 AM »

Thanks for getting back to us. That;s the kinda thing that's difficult to find..and pleasant to finally resolve! Good luck with the Star..