This workshop service repair manual covers the Volvo Penta AQ211, a marine engine built upon the reliable General Motors 305 V8 platform. This engine features a 5.0-liter displacement, cast iron block and heads, and a typical carbureted fuel system, designed for robust performance in marine applications with either raw water or freshwater cooling. Its stern drive configuration ensures efficient power transfer for a variety of watercraft. This comprehensive English-language manual provides detailed guidance for maintenance, diagnostics, and repair. It includes procedures for complete engine overhaul, troubleshooting common issues, and essential maintenance tasks such as lubrication with recommended API SJ or SL, SAE 10W-30 oil. With hundreds of pages of information, this manual is an indispensable resource for owners, mechanics, and technicians seeking to maintain the optimal performance and longevity of their Volvo Penta AQ211 stern drive system.