This workshop service repair manual covers the Volvo AQ190 marine engine, powered by a 302 cubic inch (5.0 liter) V8 gasoline engine. This robust engine, featuring cast iron block and heads, delivers 190 horsepower and utilizes a water-cooling system typical for marine applications. Designed for reliability and performance in marine environments, the AQ190 is paired with a marine gearbox, ensuring efficient power transfer for watercraft. This comprehensive English-language manual provides detailed guidance for maintaining and repairing the Volvo AQ190. It includes essential information on lubrication, service schedules for oil changes, spark plug replacement, and critical impeller maintenance, along with details on the distributor ignition system. Owners, mechanics, and technicians will find the procedures, technical specifications, and troubleshooting advice invaluable for ensuring the longevity and optimal performance of their marine propulsion system.