This repair manual covers Mercury Mercruiser V8 marine engines, specifically the 5.0L, 5.7L, and 6.3L MPI models produced between 2001 and 2006. These engines are designed for sterndrive applications (Alpha and Bravo) as well as inboard configurations for tow sports, and include Velvet Drive transmissions. Known for their robust engineering and reliability, these MPI engines offer efficient performance through their multi-point fuel injection systems. This manual is an essential resource for maintaining the integrity and operational excellence of your Mercury Mercruiser vessel. The purpose of this comprehensive repair manual is to provide detailed guidance for the maintenance, service, and repair of your Mercury Mercruiser marine engine. It encompasses critical areas such as engine removal and installation, fuel systems, lubrication and cooling, electrical systems, and advanced troubleshooting techniques. Additionally, it covers routine maintenance schedules, engine specifications, transmission service, drive chain and sprockets, steering systems, and body work. Owners, mechanics, and technicians will find the clear, step-by-step instructions and technical specifications invaluable for ensuring the longevity and optimal performance of their marine propulsion system.