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Discussion Starter · #1 ·
Have been ringing out a S&W PPK (used, but in spotless condition). After about 120rds the trigger stopped reseting consistently. Failure was about twice a magazine. Functioning could be restored by dropping the de-cocker. Threw in the towel when the hammer fell forward on its own in the middle of a string. The hammer block prevented a discharge.

I can't get the problem to repeat when cycling by hand and holding the trigger back. It resets every time.

Pistol was clean and oiled.

Any input??

Other than this problem, it is functioning nicely.
 

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The only thing I can think of right now, is remove the right grip and look at where the end of the trigger bar inserts into the cocking piece. Maybe there is a metal burr there, or something rough or dirty, maybe contact points did not get finished as they should of from the factory. I am pretty sure that's is where the trigger resest to SA mode. Could also be a broken trigger spring, but I think that would be unlikely.
 

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Discussion Starter · #3 ·
Thanks for the advice. Next question, what does the trigger spring look like, and how does it mate to the trigger bar. I don't think my PPK has one! Only by fussing with the trigger bar can I get the problem to repeat. It looks like the trigger bar is failing to move up into the cut-out on the slide from time to time.
 

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Thanks for the advice. Next question, what does the trigger spring look like, and how does it mate to the trigger bar. I don't think my PPK has one! Only by fussing with the trigger bar can I get the problem to repeat. It looks like the trigger bar is failing to move up into the cut-out on the slide from time to time.
Good morning. You might want to try the following link:

http://www.pistolsmith.com/index.php

This site is staffed by professional gunsmiths who take great pride in answering the questions of both fellow smiths and novice gunowners. While there is no section devoted strictly to Walther pistols, you shouldn't have any trouble getting some knowledgable advice. Good luck.
 

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Thanks for the advice. Next question, what does the trigger spring look like, and how does it mate to the trigger bar. I don't think my PPK has one! Only by fussing with the trigger bar can I get the problem to repeat. It looks like the trigger bar is failing to move up into the cut-out on the slide from time to time.
I think there should be a spring under your trigger bar, look at the schematic on this site:

http://www.e-gunparts.com/productschem.asp?chrMasterModel=2100zPPK
 

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Discussion Starter · #8 ·
Did some tinkering yesterday and made some progress (I think). Definately have a trigger spring. Removed the trigger bar and polished to a shine, the slot in the frame that it rides in. This area was VERY rough, putting a lot of friction on the bar, as it tried to move up into the frame recess when it resets for the next shot. Seems to be much smoother now. I hope to get to the range on my lunch hour and see if this fixed it.

Thanks for the feedback, range report to follow.
 

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The right hand grip panel sometimes is found slightly bent inward (or flex when when the grip is being squeezed), and bind the trigger bar. Aftermarket grips, particularly Pachmayr, are notorious in this regard.

M
 

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Discussion Starter · #10 ·
Problem appears to be fixed. Polishing the trigger bar recess took care of it.

On to the next problem- at about 250rds through without a cleaning, was working on DA/SA double taps. Had three failures to prime a round when shooting DA With two different brands of ammo. A second squeeze resulted in a successful discharge each time. It did not happen in SA mode. Is this something that might be brought about by 200rds of filth or could it have something to do with the de-cocker. It seemed to act up toward the end of my session, and only immediately following a de-cock.
Other than that it was flawless and becoming increasingly accurate!
 

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The hammer fall in DA is marginally shorter than in SA, so there is slightly less energy available to fire the cartridge. That said, your misfires could be due to several different things. The fact that it occurs only immediately after a decock might be a clue, but that's when you'd usually fire DA anyhow. Next time at the range try lowering the hammer without using the safety lever and see if the misfires persist. If a thorough cleaning does not cure the problem, take it to a gunsmith who understands Walthers and pay him for his knowledge and skill.

M
 
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