1941 Johnson Automatic Rifle troubleshoot and repair: Anvil 0140

Published on June 24, 2024
Duration: 13:39

This video provides an expert-level guide to troubleshooting and repairing common issues on the 1941 Johnson Automatic Rifle, specifically focusing on the bolt hold-open mechanism and magazine door functionality. The instructor details a step-by-step disassembly and reassembly process, identifying missing parts and demonstrating their installation. The guide emphasizes the importance of proper parts sourcing and careful reassembly for restoring the rifle's functionality.

Quick Summary

This video details the repair of a 1941 Johnson Automatic Rifle, addressing a loose magazine door and the bolt failing to stay open. It guides viewers through disassembly, identifying missing parts like the bolt hold-open piece and magazine door spring, and reassembly, emphasizing the importance of proper parts and gunsmithing resources.

Chapters

  1. 00:12Introduction: Johnson Automatic Rifle Issues
  2. 00:52Disassembly: Rear Stock and Plunger Removal
  3. 02:06Stock Removal and Trigger Group Access
  4. 02:31Magazine Component Removal
  5. 03:04Hammer Removal
  6. 03:15Identifying Missing Bolt Hold Open Part
  7. 03:58Magazine Disassembly and Front Pin
  8. 05:13Rotary Magazine Inspection
  9. 06:05Importance of Gunsmithing Libraries
  10. 06:30Identifying Required Parts: Bolt Hold Open & Spring
  11. 07:15New Parts Arrive: Bolt Hold Open & Spring
  12. 07:32Installing Magazine Door Spring
  13. 08:24Revisiting Disassembly: Takedown Pin Importance
  14. 09:05Examining Magazine's Diagonal Tab
  15. 10:10Aligning Bolt Hold Open Mechanism
  16. 11:12Functionality Test: Bolt Hold Open & Magazine
  17. 11:24Bolt Operation and Reloading
  18. 12:19Gunsmithing Philosophy: Fix Broken First
  19. 12:46Johnson vs. Garen: Plan B
  20. 13:17Conclusion

Frequently Asked Questions

What are the common issues with the 1941 Johnson Automatic Rifle that this video addresses?

This video focuses on two primary issues: a 'flaccid' magazine door that doesn't stay shut and the bolt not staying open when released. These problems are often caused by missing or damaged internal components.

How is the 1941 Johnson Automatic Rifle disassembled for repair?

Disassembly begins at the rear by removing the stock plunger and spring, then the takedown plunger pin to detach the stock. Further disassembly involves removing pins for the trigger group, magazine component, and hammer.

What specific parts are typically needed to fix the bolt hold open and magazine door on a 1941 Johnson Rifle?

Repairing these issues often requires a specific bolt hold-open piece with legs and a stud, and a spring for the magazine door. These parts are crucial for the rifle's functionality.

Where can one find parts and information for repairing a 1941 Johnson Automatic Rifle?

The video recommends building a physical library of gunsmithing books, specifically mentioning Mr. Canfield's work. Suppliers like Sarco are also suggested for sourcing hard-to-find parts for vintage firearms.

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