Videos tagged with Thread Repair

This video details various motorcycle engine and transmission repair processes undertaken at Dragonman's shop. It covers common issues like damaged sprocket shafts, pitted valve seats due to fuel additives, blown engine cases requiring welding, and catastrophic failures from worn rod bearings. The instructor emphasizes preventative maintenance for older engines and showcases specialized machining equipment used for these complex repairs.

This video demonstrates a common issue encountered during gas block installation: shallow or improperly tapped threads on the set screw holes. The instructor from School of the American Rifle shows how to identify this problem, where the set screw doesn't fully seat, leading to a false torque reading. A practical solution involving running a tap through the holes to clean and deepen the threads is presented as a quick fix, emphasizing that this is a common gunsmithing task rather than a reason to return a part.

This live Q&A session from Small Arms Solutions covers a wide range of firearms and accessories. Topics include a unique Colt AR-15A2 Sporter II with a trigger set screw, discussions on popular calibers like 300 Blackout and 5.7x28mm, and reviews of new pistols like the Sig P322 and P320. The session also delves into AR-15 components such as gas blocks and barrels from Criterion and Ballistic Advantage, and explores ammunition market trends for Soviet calibers. Practical advice is offered on stripped lower receiver threads and suppressor compatibility with new rounds like 8.6 Blackout. The speakers also touch on the reliability of various firearms and offer opinions on piston vs. direct impingement systems.

This video details the complex process of repairing a damaged barrel band screw on a Mauser 71/84 rifle. The instructor demonstrates how to draw temper, drill, tap, and fabricate a new head for a broken screw, then re-integrates it into the barrel band assembly. The repair involves specialized gunsmithing techniques to restore the clamping function of the barrel band, emphasizing precision and careful material handling.

This video focuses on a specific gunsmithing task: fixing or tapping undersized threads on an AR-pattern rifle's carrier. It's aimed at individuals who perform their own firearm maintenance and modifications, or those seeking to understand the process of thread repair on firearm components. The content appears to be instructional, detailing a practical solution for a common or potential issue encountered by AR owners.

This video details a critical defect found in a Fail Zero AR-15 Bolt Carrier Group (BCG) during maintenance. The instructor discovered undersized threads in the carrier, preventing screws from seating properly, and a crack caused by overtightening. The BCG was deemed irreparable and unusable due to these issues, highlighting potential problems with nickel boron coatings and manufacturing quality.

This video demonstrates how to create a simple DIY fixture for accurately cutting off small screws to the correct length, a common task in gunsmithing. By drilling and tapping a piece of flat stock, users can create a secure holder that protects screw threads during grinding or filing, ensuring clean, usable threads. The presenter also mentions commercially available alternatives like the Brownells Screw Checker or Screw Gizzy.

This YouTube video from Brownells showcases their Tap & Die Kit #1. The description directs viewers to a Brownells video website for more information. While the specific contents and applications of the kit are not detailed in the provided information, it is a product offered by a well-known firearms and accessories retailer, suggesting its relevance to firearm maintenance or gunsmithing tasks.