Postwar Lionel 2343 F3 Motor & E-Unit Service: Complete Electrics Teardown (Part 2)

The rescue mission is officially complete! 🚂 Welcome back to Part 2 of our classic Postwar Lionel F3 dual-motor locomotive restoration series. In Part 1, we tackled the heavy cleaning, body detailing, and heavy-duty trucks. Today, we are focusing entirely on the electrics to turn this vintage powerhouse into an absolute dream runner. Watch as we completely strip down the classic Lionel motors and tackle a common obstacle: cleaning years of rock-hard, fossilized grease out of a sealed armature casing using an ultrasonic cleaner and a bit of elbow grease. We’ll also do a complete deep-clean on the famous 3-position E-unit reversing drum, restore the electrical path on the delicate brush holders, and service the vintage 1.5V horn relay switch. In this episode, we cover: How to safely service Lionel armatures and clean commutators without pulling pressed gears. Restoring brittle Bakelite brush holders, cleaning carbon brushes, and testing proper spring alignment. Step-by-step cleaning and lubricating of the internal E-unit contacts using specialized contact spray. Tracing the 1.5V DC horn relay circuit and detailing how the original battery power works. The Final Reveal: Taking this gorgeous 75-year-old ABA set outside onto the test track to open her up and watch her fly! Plus, I share some exciting personal news about landing a dream job at one of our local Billings hobby shops—a moment my 14-year-old self would be losing his mind over! If you love satisfying vintage toy train restorations, technical postwar repair tutorials, or just want to celebrate our channel's 1-year anniversary with us, hit that subscribe button and leave a comment below! ⏳ Video Chapters Timeline 0:00 - Welcome to Part 2: Servicing the F3 Electrics 0:48 - Life Update: Ron Lands a Job at the Local Hobby Shop! 1:45 - Reviewing the Postwar Lionel F3 Wiring Schematic 2:11 - Inspecting the Dual Motors, E-Unit, and Horn Relay 2:32 - The Armature Gear Dilemma: What Can We Disassemble? 3:32 - Removing the Brittle Bakelite Brush Holders 4:13 - Rigging Up the Motor for the Ultrasonic Cleaner 5:30 - Scrapping Out 70 Years of Fossilized Mud Grease 5:58 - Cleaning the Commutator and Armature Shaft Bearings 6:31 - How to Properly Clean Filthy Brush Holders & Springs 8:15 - Reinstalling Brushes and Aligning the Tension Springs 9:01 - Name That Classic Model! (Community Comment Challenge) 9:18 - Deep Oiling & Greasing the Helical Motor Assembly 11:20 - How the Lionel 3-Position E-Unit Reversing Drum Works 12:18 - Manually Cleaning the Deep Internal E-Unit Fingers 13:17 - Applying Protective Coating and Lube to the Drum 14:39 - Inside the Postwar 1.5V DC Battery Horn Relay 15:44 - Installing Fish Paper & Grounding the Relay Chassis 16:28 - Bench Testing the E-Unit & Horn Relay Operation 17:35 - Soldering the Main Motor Fields & Final Wiring Connections 18:00 - Reassembling the F3 Shell & Test Track Expectations 18:29 - The D-Battery Danger & eBay Battery Eliminators 19:10 - Final Test Run: The Restored Lionel F3 ABA Set in Action! 20:14 - Celebrating One Year of Classic Model Trains on YouTube! Classic Model Trains 1507 Old Hardin Road Billings, Mt. 59101 Facebook/Classic Model Trains @classicmodeltrains