This manual covers the 108 Series aircraft engines, specifically the 150 HP and 165 HP variants. These air-cooled, flat-six engines are known for their robust design and direct drive propeller systems, making them a reliable power source for the 108 Series aircraft. The engineering quality of Franklin engines ensures dependable performance for a range of aviation applications.

This overhaul manual provides comprehensive guidance for the maintenance, repair, and inspection of the 108 Series engines. It details essential procedures, troubleshooting techniques, and technical specifications necessary for ensuring optimal engine performance and longevity. This English-language document is an indispensable resource for owners, mechanics, and technicians working to maintain these aircraft engines.