Unissued SKS Cosmoline Removal

Published on August 12, 2011
Duration: 15:03

This guide details the comprehensive process of removing cosmoline from an unissued Yugoslavian M59/66A1 SKS rifle, as demonstrated by Iraqveteran8888. It covers disassembly, cleaning metal and wood components using various solvents and degreasers, ultrasonic cleaning for small parts, crucial safety steps for the firing pin channel, lubrication, and reassembly. The expert-level instruction emphasizes thoroughness to ensure the firearm's preservation and safe operation.

Quick Summary

Cosmoline removal from an SKS involves complete disassembly, using brake cleaner for metal parts, an ultrasonic cleaner with Simple Green for small components, and Zep PowerHouse degreaser for the wood stock. The 'sun-sweating' method is also used for deep-seated grease in the wood. Crucially, clean the firing pin channel to prevent slam fires.

Chapters

  1. 00:00Introduction to Cosmoline
  2. 01:07Disassembly
  3. 03:28Cleaning Metal with Solvents
  4. 04:28Ultrasonic Cleaning
  5. 06:32Cleaning the Wood Stock
  6. 11:07Bolt and Firing Pin Safety
  7. 11:19Lubrication and Reassembly
  8. 12:47Sun-Sweating the Stock
  9. 14:02Final Finishing
  10. 14:45Test Firing

Frequently Asked Questions

How do you remove cosmoline from an SKS rifle?

Cosmoline removal from an SKS involves complete disassembly, using brake cleaner for metal parts, an ultrasonic cleaner with Simple Green for small components, and Zep PowerHouse degreaser for the wood stock. The 'sun-sweating' method is also used for deep-seated grease in the wood.

What are the risks of leaving cosmoline in an SKS firing pin channel?

Leaving cosmoline in the firing pin channel can cause the firing pin to stick in the forward position. This can lead to dangerous 'slam fires,' where the rifle discharges automatically when a round is chambered, compromising safety.

What tools are needed for SKS cosmoline removal?

Essential tools include brake cleaner, an ultrasonic cleaner, Simple Green, Zep PowerHouse degreaser, Rig Universal Gun Grease, and potentially a Savage Range Systems 'Snail' trap for test firing. Basic disassembly tools are also required.

How can I clean cosmoline from a wooden SKS stock?

For wooden stocks, spray Zep PowerHouse Heavy Duty Degreaser to draw out cosmoline. Then, place the stock in direct sunlight to 'sweat' out remaining grease, wiping it away as it surfaces. A stock wax can be applied afterward.

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