LP08 trigger work

John Sabato · 01-11-2019, 11:01 AM

Careful polishing of the surfaces of the overlap between striker and sear can also reduce the trigger put significantly without a lot of measurable metal removed. I would use flat surfaces and 400 to 600 emery cloth or paper and do a few strokes (maybe 10 at a time on each surface?) at a time.

Make sure you start with clean parts, and carefully examine the surfaces under a good magnification to know where you start. Then polish some and re-examine to see what progress you are making. The objective is to remove any roughness from the two surfaces without changing their dimensions. Periodically during your polishing, clean and reassemble with lubrication and test your trigger.

The best part of this work is that you can do it yourself. If it works, all you have spent is your time and the cost of the emery cloth. If it doesn't help enough, then you can start spending some money on good help like from Tom Heller.

rhuff · 01-11-2019, 01:48 PM

Another place to look is at the trigger return spring. If your original trigger return spring has been replaced with some other spring, perhaps it is too strong and is increasing your trigger pull.

Rick W. · 01-11-2019, 02:57 PM

One might consider using some masking tape to smoke the parts as a visual aid.

Rick W. · 01-12-2019, 09:29 AM

Guess I should have been a little more straightforward with my masking tape comment. The lowly masking tape has a lot of uses, good for holding things together for instance in the right environment; thicknesses thereof can be used for crude measurements etc.

I used to go over to a shop where they built firearms; twas old world. I was allowed to sit and watch, and if I was quiet, some little tidbits of knowledge flowed down.

One guy was a fitter. He would use blacking off a candle or a funky lamp to coat surfaces and then work them down to a hair line fit or better. He said you had to kinda keep track of things, and visual aids were always helpful.

Good enough was never in his conversation, I don't think he meant it as a browbeating, but just he just never could accept that in his own work.

So one day he was fitting parts, and the funky lamp for blackening was on the other side of the shop. He flicked up his lighter and lit a small piece of masking tape.............it marked(smoked) the parts just like the little funky lamp. Nothing was said, but I saved that off. Today the memory was refreshed..............

aldo35 · 01-12-2019, 04:08 PM

I was fortunate as a kid my grandfather who worked at Colt's in Hftd built a single shot rifle for me. He learned his trade in Germany and arrived here in 1893. I remember that he blackened the barrel, set it in the stock, which he carved, and then removed the wood high spots which the black marked.

01-11-2019, 11:01 AM	#1
John Sabato Lifer Lifetime Forum Patron Join Date: Jun 2002 Location: The Capital of the Free World Posts: 10,157 Thanks: 3,003 Thanked 2,311 Times in 1,099 Posts	Careful polishing of the surfaces of the overlap between striker and sear can also reduce the trigger put significantly without a lot of measurable metal removed. I would use flat surfaces and 400 to 600 emery cloth or paper and do a few strokes (maybe 10 at a time on each surface?) at a time. Make sure you start with clean parts, and carefully examine the surfaces under a good magnification to know where you start. Then polish some and re-examine to see what progress you are making. The objective is to remove any roughness from the two surfaces without changing their dimensions. Periodically during your polishing, clean and reassemble with lubrication and test your trigger. The best part of this work is that you can do it yourself. If it works, all you have spent is your time and the cost of the emery cloth. If it doesn't help enough, then you can start spending some money on good help like from Tom Heller. __________________ regards, -John S "...We hold these truths to be self-evident that ALL men are created EQUAL *and are endowed by their Creator* with certain UNALIENABLE* rights, and among these are life, LIBERTY, and the pursuit of happiness..."*

01-11-2019, 01:48 PM	#2
rhuff Patron LugerForum Patron Join Date: Mar 2011 Location: Az. Posts: 2,315 Thanks: 2,755 Thanked 999 Times in 734 Posts	Another place to look is at the trigger return spring. If your original trigger return spring has been replaced with some other spring, perhaps it is too strong and is increasing your trigger pull. __________________ Need DWM breechblock #21

01-12-2019, 04:08 PM	#5
aldo35 User Join Date: Jul 2010 Location: Northern GA Posts: 405 Thanks: 2,363 Thanked 187 Times in 92 Posts	Carbon Black Has Many Uses I was fortunate as a kid my grandfather who worked at Colt's in Hftd built a single shot rifle for me. He learned his trade in Germany and arrived here in 1893. I remember that he blackened the barrel, set it in the stock, which he carved, and then removed the wood high spots which the black marked.

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01-11-2019, 02:57 PM	#3
Rick W. User Join Date: Jun 2002 Posts: 339 Thanks: 81 Thanked 359 Times in 198 Posts	One might consider using some masking tape to smoke the parts as a visual aid.

01-12-2019, 09:29 AM	#4
Rick W. User Join Date: Jun 2002 Posts: 339 Thanks: 81 Thanked 359 Times in 198 Posts	Guess I should have been a little more straightforward with my masking tape comment. The lowly masking tape has a lot of uses, good for holding things together for instance in the right environment; thicknesses thereof can be used for crude measurements etc. I used to go over to a shop where they built firearms; twas old world. I was allowed to sit and watch, and if I was quiet, some little tidbits of knowledge flowed down. One guy was a fitter. He would use blacking off a candle or a funky lamp to coat surfaces and then work them down to a hair line fit or better. He said you had to kinda keep track of things, and visual aids were always helpful. Good enough was never in his conversation, I don't think he meant it as a browbeating, but just he just never could accept that in his own work. So one day he was fitting parts, and the funky lamp for blackening was on the other side of the shop. He flicked up his lighter and lit a small piece of masking tape.............it marked(smoked) the parts just like the little funky lamp. Nothing was said, but I saved that off. Today the memory was refreshed..............