The Unofficial P64 Resource Forum

I ordered a new main spring (17lb) and recoil spring (22lb) from Wolff. The recoil spring came with a new firing pin spring - do I need to change the firing pin spring or do they just throw that in as an extra in case you need it?

Keep an eye on your brass, if it starts having striation marks across the fired primer instead of just a circle from the FP then change the spring. Because you FP is dragging across the primer.

If not don't worry about it, I didn't change mine.

I would change it just because that way you don't have a new, full strength spring and an old(er) partially shortened spring trying to work properly together. But that's how I am about things, if you change one change them all unless you KNOW for sure that all are at specs. This way I don't worry about things not working properly, in the correct order at the correct timing etc, etc. potentially causing FTF's, FTE's, jams, etc. But that's my .02$.

Well changing the firing pin spring turned out to be a bad idea since it's almost impossible to get the stupid safety detent to stay in place when re-assembling it. I really want to know what went through the minds of people who thought up such poor designs, like the idiot who designed the extractor on the M1 carbine.

Good vid here of the spring change.

http://www.youtube.com/watch?v=FCHgwc0GGa0

"Crimp the end of the spring onto the safety detent itself to keep it in place."

As long as you have a bolt tool for the M1 carbine, changing extractors is not a big deal.

Totenglocke wrote:Well changing the firing pin spring turned out to be a bad idea since it's almost impossible to get the stupid safety detent to stay in place when re-assembling it. I really want to know what went through the minds of people who thought up such poor designs, like the idiot who designed the extractor on the M1 carbine.

Before you go calling people names. Consider your audience, there are allot of people here that love the design of this little gun. Also to most of us, changing the firing pin spring is an easy task.

Weasel640 wrote:Before you go calling people names. Consider your audience, there are allot of people here that love the design of this little gun. Also to most of us, changing the firing pin spring is an easy task.

I never insulted the design of the gun, just the poor design of the safety detent where it's almost impossible to get a tool in such a small space to compress it. I was able (after an hour of much swearing) to finally get it in. I've fully disassembled and re-assembled other guns and it's rare for there to be something that insanely difficult to put back together.

You should try a Ruger Mk III target pistol...