This manual covers the Volvo Penta AQ250 marine engine, a V8 model with a 5.7L (350 ci) displacement. Designed for marine applications, the AQ250 is known for its robust engineering and reliability. This comprehensive guide provides in-depth information to ensure optimal performance and longevity of your vessel's propulsion system. This Factory Service Repair Manual, written in English, offers hundreds of pages of detailed content, including step-by-step repair procedures, advanced troubleshooting guides, and tuning information. It features illustrations, diagrams, and electrical schematics to assist users of all skill levels, from owners to factory technicians. The manual is designed to facilitate maintenance and repair, ultimately saving time and labor costs.