Champion Aerospace Slick Magneto Impulse Coupling Spring, M917
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The Champion Aerospace M917 is the IC (impulse coupling) spring for Slick magnetos. Champion lists the impulse spring, as applicable, among the high-wear parts replaced at 500-hour magneto service. Sold individually.
- Listed as the IC spring in Slick 500 Hour Inspection Kit MK431 for 4-cylinder magnetos
- Listed as the IC spring in Slick 500 Hour Inspection Kit MK631 for 6-cylinder magnetos
- Champion advises liberally lubricating the impulse coupling with aircraft engine oil before installation
- Impulse coupling inspection and reassembly per the L-1363 Magneto Maintenance and Overhaul Manual, Section 3.3.4
Tech Spec
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