Calguns.net  

Home My iTrader Join the NRA Donate to CGSSA Sponsors CGN Google Search
CA Semiauto Ban(AW)ID Flowchart CA Handgun Ban ID Flowchart CA Shotgun Ban ID Flowchart
Go Back   Calguns.net > FIREARMS DISCUSSIONS > Curio & Relic/Black Powder
Register FAQ Members List Calendar Mark Forums Read

Curio & Relic/Black Powder Curio & Relics and Black Powder Firearms, Old School shooting fun!

Reply
 
Thread Tools Display Modes
  #1  
Old 05-19-2019, 6:55 PM
Gryff's Avatar
Gryff Gryff is offline
CGSSA Coordinator
 
Join Date: May 2006
Location: Castro Valley, CA
Posts: 11,690
iTrader: 59 / 98%
Default Garand experts - help with bolt issue after disassemble/reassemble

I've just field stripped my M1 Garand for a relatively deep cleaning for the first time in many years (including removing the gas cylinder). I am not a Garand expert, so I rely heavily on instructions found on the Internet or on YouTube.

When I get the gun back together, the bolt is locked closed and cannot be opened. If I field strip it back down and remove the op-rod spring, I can use a rubber mallet to strike the op-rod handle and open the bolt.

In this condition, with the op-rod attached, I can run the bolt back and forth most of the way. But if I run it all the way forward to fully close the bolt (it takes a some force to get it closed), I need to use the mallet again to get it open again. And if the gun is fully assembled, then the spring pressure is too great to be able to work the bolt

Not sure what I'm missing. I've carefully disassembled/reassembled it four times. If anyone has a thought, I would appreciate it.



Update - problem solved. Issue with how the op-rod was interfacing with the gas cylinder.
__________________
My friends and family disavow all knowledge of my existence, let alone my opinions.

Last edited by Gryff; 05-21-2019 at 1:24 AM..
Reply With Quote
  #2  
Old 05-19-2019, 7:15 PM
socal m1 shooter's Avatar
socal m1 shooter socal m1 shooter is offline
Member
 
Join Date: Dec 2013
Location: Left Coast
Posts: 236
iTrader: 1 / 100%
Default

Start about a minute in:



I'm guessing that you didn't assemble the op-rod catch correctly.
__________________
WTB extractor for S&W 659. Please PM if you have one to sell.
Reply With Quote
  #3  
Old 05-19-2019, 7:18 PM
Unsilenced's Avatar
Unsilenced Unsilenced is offline
Member
 
Join Date: Jul 2016
Posts: 380
iTrader: 6 / 100%
Default

Did you disassemble the bolt? Without taking apart my own to get a better look, the extractor and ejector would be my first guesses for where something's wrong.

EDIT: Catch assembly is probably more likely. I've never seen it do something like that, but I can see how it would be easy to get wrong.

Last edited by Unsilenced; 05-19-2019 at 7:23 PM..
Reply With Quote
  #4  
Old 05-19-2019, 9:44 PM
kendog4570's Avatar
kendog4570 kendog4570 is offline
Veteran Member
 
Join Date: Dec 2008
Location: Oakhurst, CA
Posts: 4,190
iTrader: 27 / 100%
Default

At .05 seconds, why do you pull the op rod away from the receiver? It looks like it is pulled out of its track. Why is this?
If it is out of its track it could bind somewhere up the line maybe at the saddle contact area under the chamber, or rubbing at the front band or jamming in the gas cylinder.


Whats happening on the back of the bolt when it is almost in battery? Firing pin tang clearing the cam notch in the bridge?
Also check the op rod catch as others have mentioned, but it looks like you dont have those parts in the gun in your video.

Last edited by kendog4570; 05-19-2019 at 9:49 PM..
Reply With Quote
  #5  
Old 05-20-2019, 2:02 AM
Orlando Orlando is offline
Senior Member
 
Join Date: Sep 2010
Location: WLiberty Ohio
Posts: 1,778
iTrader: 8 / 100%
Default

It does look as thought the op rod tab might not be in the track
Reply With Quote
  #6  
Old 05-20-2019, 7:01 AM
rvr350 rvr350 is online now
Senior Member
 
Join Date: Aug 2013
Posts: 563
iTrader: 2 / 100%
Default

i agree, if you have another op rod, try to swap it in, and see if it's out of spec. Also, try to put the bolt into the receiver without the op rod, making sure it can go into battery without any hinderance.
Reply With Quote
  #7  
Old 05-20-2019, 9:51 PM
Gryff's Avatar
Gryff Gryff is offline
CGSSA Coordinator
 
Join Date: May 2006
Location: Castro Valley, CA
Posts: 11,690
iTrader: 59 / 98%
Default

Quote:
Originally Posted by Unsilenced View Post
Did you disassemble the bolt? Without taking apart my own to get a better look, the extractor and ejector would be my first guesses for where something's wrong.

EDIT: Catch assembly is probably more likely. I've never seen it do something like that, but I can see how it would be easy to get wrong.
Did not disassemble the bolt. At the time of the video, none of the receiver parts are installed except bolt and op-rod, so I don't think it's the catch assembly.

Quote:
Originally Posted by kendog4570 View Post
At .05 seconds, why do you pull the op rod away from the receiver? It looks like it is pulled out of its track. Why is this?
If it is out of its track it could bind somewhere up the line maybe at the saddle contact area under the chamber, or rubbing at the front band or jamming in the gas cylinder.
When the bolt is all the way back, it will not go forward unless I pull the op-rod slightly away from the receiver.


Quote:
Originally Posted by kendog4570 View Post
Whats happening on the back of the bolt when it is almost in battery? Firing pin tang clearing the cam notch in the bridge?
Also check the op rod catch as others have mentioned, but it looks like you dont have those parts in the gun in your video.
I'll have to check the back of the bolt at that moment.

Quote:
Originally Posted by rvr350 View Post
i agree, if you have another op rod, try to swap it in, and see if it's out of spec. Also, try to put the bolt into the receiver without the op rod, making sure it can go into battery without any hinderance.
Bolt in the receiver without op-rod slides fully into and out of battery without a problem.
__________________
My friends and family disavow all knowledge of my existence, let alone my opinions.
Reply With Quote
  #8  
Old 05-21-2019, 1:22 AM
Gryff's Avatar
Gryff Gryff is offline
CGSSA Coordinator
 
Join Date: May 2006
Location: Castro Valley, CA
Posts: 11,690
iTrader: 59 / 98%
Default

Update

It definitely seemed like the op-rod was impacting something and causing the problems with bolt movement. I had a suspicion that it might be its interaction with the gas cylinder, so I took off the cylinder lock and screw. I put in the op-rod with the cylinder unsecured.

Sure enough, the op-rod and bolt now functioned correctly. I tightened up the gas cylinder, lock, and screw, put everything back together, and the gun functions correctly now.

So, I cannot say what exactly was happening to cause the problem, it was definitely an interaction between the op-rod and the gas cylinder.

I appreciate the input from everyone.
__________________
My friends and family disavow all knowledge of my existence, let alone my opinions.
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump



All times are GMT -8. The time now is 4:53 PM.




Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Proudly hosted by GeoVario the Premier 2A host.
Calguns.net, the 'Calguns' name and all associated variants and logos are ® Trademark and © Copyright 2002-2018, Calguns.net an Incorporated Company All Rights Reserved.
Calguns.net and The Calguns Foundation have no affiliation and are in no way related to each other.
All opinions, statements and remarks made by Calguns.net on this web site and elsewhere are solely attributable to Calguns.net.