The Continental IO-520 is a robust aircraft engine designed for propulsion, featuring a horizontally opposed, air-cooled, fuel-injected configuration. This six-cylinder engine, with a displacement of 520 cubic inches, utilizes Aviation Gasoline (Avgas) and is equipped with a dual magneto and dual spark plug ignition system. Engineered for reliability and performance under varying ambient temperature and pressure conditions, the IO-520 represents a significant contribution to aircraft operations, built with a commitment to engineering excellence.

This Service Repair Manual, published in English in 2009, provides comprehensive guidance for the maintenance and overhaul of the Continental IO-520 aircraft engine. It covers essential procedures, technical specifications, and operational details necessary for ensuring the continued airworthiness and optimal performance of the engine. The manual is an indispensable resource for owners, mechanics, and technicians, detailing inspection schedules, recommended lubrication practices including Aeroshell W100 or equivalent oil, and other critical service information to support the engine's intended use in aircraft propulsion.