Aviation Mechanic - General, Airframe, and Powerplant › III. Powerplant › Task H. Ignition and Starting Systems

AM.III.H.S1

Skill

Set magneto internal timing.

Study note

Get a short, cited explanation of this element written from the FAA handbooks: the core idea, the numbers that matter, common test traps, and a quick self-check.

From the FAA library

Aviation Maintenance Technician Handbook - Powerplant p. 4-33
Chapter 4: Engine Ignition & Electrical Systems › Checking the Internal Timing of a Magneto › Checking Ignition Induction Vibrator Systems
Insert the lead into the block and tighten the set screw. Connect…
Aviation Maintenance Technician Handbook - Powerplant p. 4-31
Chapter 4: Engine Ignition & Electrical Systems › Checking the Internal Timing of a Magneto › Ignition Switch Check
Ignition Switch Check The ignition switch check is performed to see that…
Aviation Maintenance Technician Handbook - Powerplant p. 4-18
Chapter 4: Engine Ignition & Electrical Systems › Auxiliary Ignition Units › Booster Coil
consists of two coils wound on a soft iron core, a set of contact points, and a condenser. [Figure 4-31] The booster coil is separate from the magneto and can generate a series of sparks on its own. During ... grounded at the internal grounding strip and its other end connected to the moving contact point. The stationary contact is fitted with a terminal to which battery voltage is applied when the magneto switch is placed in the start position…