The Lucas Ignition Distributor: How it Works (Part 1)

I learned in Triumph club tech sessions that something like 99% of carburetor problems are located squarely under the distributor cap. This magic gizmo can make your engine either run like a Swiss watch... or like complete garbage. It can be responsible for fuel smells from your exhaust, causing carburetor adjustments that aren't necessary, and can be the cause of endless headache. Lucas distributors were found in cars from the Austin Healey 3000 and Sprite, to the MGB and Midget, to Triumph TR6s and Spitfires--not to mention dozens of others. They were reliable, sophisticated, and precise... except that they weren't maintained properly and were often misunderstood--even by mechanics. Connect your vacuum advance to the wrong port and you'll have vacuum retard instead. Have you remembered to put a few drops of oil down the shaft at every service? When was the last time you set your points? Vacuum capsules are just for emissions... right? In this video, we take a deep(ish) dive into the Lucas distributor, identifying and adding in components to get a complete unit. As always, thanks for watching. Post questions in the comments below, and if you need help rebuilding yours, get in touch!