Magneto Manual | Scintilla

Look for hairline cracks in the Bakelite distributor blocks. These can cause "carbon tracking," where the spark jumps to the ground instead of the plug.

Most Scintilla manuals specify a gap of .012" to .015" . Use a feeler gauge to verify.

Unlike modern electronic ignitions, a Scintilla magneto is a self-contained high-voltage generator. It doesn’t require a battery to operate; instead, it uses a rotating magnet to induce an electrical current in a primary coil. scintilla magneto manual

Note: Adjusting E-gap usually requires a timing light or a dedicated magneto synchronization box. 5. Lubrication: Less is More One of the fastest ways to ruin a Scintilla is over-oiling.

"E-gap" stands for Efficiency Gap. It is the specific number of degrees past the magnetic neutral position where the points are timed to open. Look for hairline cracks in the Bakelite distributor blocks

Turn the drive shaft by hand. You should feel a distinct "snap" or resistance (the magnetic "E-gap"). If it spins freely with no resistance, the magnets may be weak or the bearings shot.

The Comprehensive Guide to Scintilla Magneto Maintenance and Operation Use a feeler gauge to verify

However, a Scintilla magneto is only as reliable as its maintenance. Whether you are holding a Bendix-Scintilla S-20 or a classic V-AG series, this guide serves as a practical manual for understanding, timing, and preserving these mechanical masterpieces. 1. Understanding the Scintilla Operating Principle

Use a very light film of high-temperature grease.

If your internal timing is off, the engine may start easily but stumble at high RPMs, or vice versa.