Questions and Answers
What type of couplings are equipped on the magnetos?
What adjustment can be made on the breaker points of the magnetos?
How are the magnetos timed to the engine?
What is the purpose of the timing hole in the magneto?
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What precaution should be taken during magneto maintenance?
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Study Notes
Magneto Characteristics
- Slick magnetos used on the engine are sealed and lightweight.
- Both magnetos are equipped with impulse couplings.
Maintenance and Repair
- Magnetos MUST NOT BE DISASSEMBLED.
- Internal timing is fixed and the breaker points are not adjustable.
Timing Procedure
- Timing marks are provided on the distributor gear and distributor block, visible through air vent holes, for timing to the engine.
- A timing hole is provided in the bottom of the magneto adjacent to the magneto flange.
- A timing pin (or 0.093 inch 6-penny nail) can be inserted through the timing hole into the mating hole in the magneto rotor shaft to lock the magneto approximately in the proper firing position.
Ignition Harness
- Slick lightweight ignition harness is used with the lightweight magnetos.
- For ignition harness repair, refer to the manufacturer's Service Manual.
Safety Precautions
- Always take proper precautions during magneto maintenance to ensure the engine cannot fire or start when the propeller is moved.
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Description
This quiz covers the features and operation of sealed, lightweight Slick magnetos used on aircraft engines, including impulse couplings, internal timing, and timing marks. It also discusses the importance of not disassembling the magnetos.
