How to Repair - Luger breech block wear- striker spring guide comes out

Karl · 07-19-2016, 11:22 AM

Don,
I completely agree that the Luger striker spring is much stronger than necessary. However, I can't see how the stronger spring would be the determining factor in the failure of the breech block at this point. It seems to me that the wear to the striker guide retaining lug is the combined result of ammo that is too hot, causing the the striker guide to be pushed back and forth as it hits the frame, and a lack of lubrication.
KFS

DonVoigt · 07-19-2016, 01:25 PM

Quote:

Originally Posted by Karl

Don,
I completely agree that the Luger striker spring is much stronger than necessary. However, I can't see how the stronger spring would be the determining factor in the failure of the breech block at this point. It seems to me that the wear to the striker guide retaining lug is the combined result of ammo that is too hot, causing the the striker guide to be pushed back and forth as it hits the frame, and a lack of lubrication.
KFS

Well,
the spring is what pushes the retainer to the rear, without it it would not lock in, any "extra" pressure =more wear.

I never said it was the only factor, only that the spring is much stronger than needed and a big factor in this type of wear, IMO.

Lubrication is always good; and yes, in "normal" operation the guide should not contact the rear of the frame.

It would take a Lot of shooting and/or firing higher power loads to do this.

It is not a really common failure, again JMHO.

Rickybill · 09-03-2018, 12:03 PM

I had my local gunsmithing services provider perform this repair to my breechblock.
The repair pin occupies space within the breechblock that needs to be free for rearward movement of the retainer, so I reduced the retainer locking tab's thickness until the toggle would lock and striker would drop.

I popped a primed case to prove trigger/striker function, and will try to get to the range for a full test, and some pics.

Rickybill · 09-30-2018, 04:20 PM

Not much to show, as the repair looks just like DonVoigt's. I put 25 rounds through it yesterday, and function was perfect.

09-30-2018, 04:20 PM	#4
Rickybill User Join Date: Aug 2018 Posts: 25 Thanks: 0 Thanked 12 Times in 6 Posts	Not much to show, as the repair looks just like DonVoigt's. I put 25 rounds through it yesterday, and function was perfect. Attached Thumbnails

07-19-2016, 11:22 AM	#1
Karl Lifer - Twice Over Lifetime Forum Patron Join Date: Jun 2002 Location: Savannah Posts: 530 Thanks: 0 Thanked 280 Times in 123 Posts	Don, I completely agree that the Luger striker spring is much stronger than necessary. However, I can't see how the stronger spring would be the determining factor in the failure of the breech block at this point. It seems to me that the wear to the striker guide retaining lug is the combined result of ammo that is too hot, causing the the striker guide to be pushed back and forth as it hits the frame, and a lack of lubrication. KFS

09-03-2018, 12:03 PM	#3
Rickybill User Join Date: Aug 2018 Posts: 25 Thanks: 0 Thanked 12 Times in 6 Posts	I had my local gunsmithing services provider perform this repair to my breechblock. The repair pin occupies space within the breechblock that needs to be free for rearward movement of the retainer, so I reduced the retainer locking tab's thickness until the toggle would lock and striker would drop. I popped a primed case to prove trigger/striker function, and will try to get to the range for a full test, and some pics.