This workshop service repair manual covers Mercury Mercruiser marine engines from the MPI (Multi-Port Injection) Era, including the 5.0L, 5.7L, and 6.2L models. These internal combustion marine engines are known for their robust cast iron construction and multi-point fuel injection systems, offering reliable power output suitable for a variety of maritime applications. The manual encompasses engines designed for sterndrive or inboard configurations, featuring various transmission types and gear ratios to match specific operational needs. This comprehensive English-language manual provides essential information for maintaining and repairing your Mercury Mercruiser engine. It details routine service procedures, including oil type and capacity recommendations, and offers guidance on spark plug gaps and belt tension, though specific values are to be found within the detailed engine specifications. Furthermore, the manual includes diagnostic troubleshooting steps, wiring schematics, and detailed illustrations and diagrams, empowering owners, mechanics, and technicians to ensure optimal performance and longevity of these powerful marine engines.