k frame firing pins spring ??

[robbt]

hi guys , I have a model 64 pencil barrel that has a spring placing tension on the firing pin , all my models 10's including a 10-7 do not , any ideas, robbt

 

[chief38]

S&W eliminated the spring because they said it was not necessary. Apparantly they were correct. Some of mine have the spring and some don't. Can't see any difference and I suppose they did save a few cents on each gun.

Chief38

 

[dfariswheel]

It was kinda the other way around.
The older S&W's didn't have a hammer mounted firing pin spring, then S&W started using a spring on some models and not on others with no apparent rhyme or reason.

As example my Model 66-2 has no spring, my Model 66-3 does.

 

[Fox Creek]

You mean a spring for a HAMMER mounted firing pin? I have never heard of this. All the hammer mounted firing pins that were the norm for so many years that I have encountered were of the "floppy" kind that had vertical play; to allow the pin to assume its "natural" alignment with the firing pin hole in the frame/standing breech.

 

[Laurent]

To my understanding, S&W introduced the spring with the 586/686 serie (part Nr. 54, Hammer Nose Spring on the schematic). I had a M15 that didn't strike reliably the primers. The pin channel in the frame was probably out of specs. The only way to get reliable ignition was to put a tiny part of rubber in the hole between the pin and the hammer.

I wish this one had a "Hammer Nose Spring"...

L.

 

[Dpris]

The spring was not introduced in the L frames.
Don't have time to dig out my older Smiths, but my 1980-issue 64 has the spring, so does a pre-MIM 66-4 sitting here.
10-5 pencil barrel does not, 1952 pre-27 does not.
Denis