Even with proper maintenance, Scintilla magnetos can occasionally develop problems. Here are some common issues and their possible causes:
If a P-lead breaks or detaches, the magneto becomes live. Treating a magneto-equipped engine as if it could start at any moment prevents accidental propeller or crank injuries. Always verify ground continuity before handling the unit. If you need help identifying a specific model, let me know:
Modern sealed bearings require no maintenance. Older vintage units feature oil ports that require a few drops of light machine oil every 50 hours of operation. Carbon Tracking and Cleaning
This comprehensive manual provides the technical knowledge required to operate, inspect, maintain, and troubleshoot classic Scintilla magnetos. 1. Core Operating Principles
Disconnect the ground wire at the magneto. If spark returns, inspect the cockpit ignition switch or wiring harness for shorts. Oxidized or oily breaker points.
Why this Swiss-made powerhouse was the heartbeat of vintage engines, and how to keep yours running.
inches. If the gap is incorrect when fully open, readjust the points and recheck the E-Gap opening point.