Spring Pin versus solid


Firearm & Gun Forum - FireArmsTalk.com > Gunsmithing & Do-It-Yourself Projects > Gunsmithing Forum > Spring Pin versus solid

Reply
 
LinkBack Thread Tools Display Modes
Old 08-29-2010, 09:44 AM   #1
Retired
FTF_SUPPORTER.png
Feedback Score: 0 reviews
 
danf_fl's Avatar
 
Join Date: Apr 2010
Location: LA (Lower Alabama),FL
Posts: 10,262
Liked 2872 Times on 1659 Posts
Likes Given: 1236

Default Spring Pin versus solid

I've been working on an older .22lr. The firing pin block was broke. Found another as replacement.

The original used solid pins to hold the combo firing pin/ejector. The new block has too small of holes for the original pins to fit. The pins are larger than 5/64", but smaller than 3/32".

Drilling the holes to 3/32" is not an option as one pin will then have too much slop and it will allow the pin to drop into the trigger assembly.

Can I use 3/32" spring (roll) pins? What is the best material to use?



__________________

Amendment II:
"A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed."

Life Member NRA
Life Member NAHC
Former President of the ECPT (Eifel Combat Pistol Team)

danf_fl is offline  
 
Reply With Quote

Join FirearmsTalk.com Today - It's Free!

Are you a firearms enthusiast? Then we hope you will join the community. You will gain access to post, create threads, private message, upload images, join groups and more.

Firearms Talk is owned and operated by fellow firearms enthusiasts. We strive to offer a non-commercial community to learn and share information.

Join FirearmsTalk.com Today! - Click Here


Old 08-29-2010, 01:34 PM   #2
Feedback Score: 0 reviews
 
Highpower's Avatar
 
Join Date: Oct 2009
Location: Upper Mississippi Valley
Posts: 1,547
Liked 355 Times on 200 Posts
Likes Given: 292

Default

Quote:
Originally Posted by danf_fl View Post
Drilling the holes to 3/32" is not an option as one pin will then have too much slop and it will allow the pin to drop into the trigger assembly.
Not exactly clear on what your situation is here? Are you saying the pin has to fit a smaller dia hole on the inside, and a larger dia hole on the outside?
The local hardware store will have a selection of ready made roll pins in various sizes. Maybe not a very GOOD selection, but......

For quick replacement solid pins I cut them to length from drill rod stock. They are inexpensive and made in any diameter you could want for the most part. Usually sold in 36" lengths and have a nice ground finish that takes bluing beautifully. Just a thought.

McMaster-Carr


__________________
Highpower is offline  
 
Reply With Quote
Old 08-29-2010, 02:56 PM   #3
Retired
FTF_SUPPORTER.png
Feedback Score: 0 reviews
 
danf_fl's Avatar
 
Join Date: Apr 2010
Location: LA (Lower Alabama),FL
Posts: 10,262
Liked 2872 Times on 1659 Posts
Likes Given: 1236

Default

Remington Model 12, pump .22lr. Firing pin/ejector is flat and has a slot that one pin is centered and has a return spring captured. The other keeps the firing pin/ejector "guided". The guiding pin is the one I can see falling in the trigger assembly.

Drilling and inserting a larger pin involves machining the slot that has the captured spring also.

Rough image of firing pin/ejector. One pin goes through slot, the other pin is in the "cut-out" area.

__________________

Amendment II:
"A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed."

Life Member NRA
Life Member NAHC
Former President of the ECPT (Eifel Combat Pistol Team)


Last edited by danf_fl; 08-29-2010 at 02:59 PM.
danf_fl is offline  
 
Reply With Quote
Old 08-29-2010, 04:39 PM   #4
Feedback Score: 0 reviews
 
stalkingbear's Avatar
 
Join Date: Sep 2007
Location: Lebanon,Ky
Posts: 3,621
Liked 11 Times on 10 Posts
Likes Given: 3

Default

Drill out/ream the new part to accept the standard pin. If that don't work I'd drill out everything to accept the next larger size. That way you're ensuring the new pin will fit all components. Also I'd use solid pin as Highpower suggested.

__________________

Sometimes you earthlings REALLY amaze me!

stalkingbear is offline  
 
Reply With Quote
Old 08-29-2010, 05:21 PM   #5
Retired
FTF_SUPPORTER.png
Feedback Score: 0 reviews
 
danf_fl's Avatar
 
Join Date: Apr 2010
Location: LA (Lower Alabama),FL
Posts: 10,262
Liked 2872 Times on 1659 Posts
Likes Given: 1236

Default

Problem arose. After drilling and 3/32" solid pin, the "cut-out" on bottom of illustration would not let firing pin/ejector travel full forward. Had to get Dykem blue, and files out to work "cut-out" for the firing pin/ejector to travel full length.

Thanks for the assist. It seems to work.



__________________

Amendment II:
"A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed."

Life Member NRA
Life Member NAHC
Former President of the ECPT (Eifel Combat Pistol Team)

danf_fl is offline  
 
Reply With Quote
Reply

Thread Tools
Display Modes


Similar Threads
Thread Thread Starter Firearms Forum Replies Last Post
444 versus 45 -70 bigdaddy General Rifle Discussion 8 03-16-2010 01:58 AM
.223 versus 5.45x39 DrGonzo11 Auto & Semi-Auto Discussion 8 10-25-2009 03:56 PM
GSG-5 versus AR-15 KAG .22 Rifle/Rimfire Discussion 9 09-23-2009 12:53 AM
Need solid info. livethehobby General Rifle Discussion 2 01-26-2009 12:13 AM
over and under versus... Felix General Shotgun Discussion 6 01-06-2008 01:16 AM



Newest Threads