This comprehensive service and repair manual covers MerCruiser GM V-8 305 CID (5.0L) / 350 CID (5.7L) and 377 CID (6.2L) marine engines. It provides detailed instructions and specifications for maintaining and servicing these engines, ensuring you have the information needed for any repair or maintenance task. The manual is divided into sections, each covering a specific aspect of the engine system. **Section 1: Important Information** includes general information, maintenance schedules, and troubleshooting tips. **Section 2: Removal and Installation** covers the process of removing and installing various components for MCM and MIE models. **Section 3: Engine** provides detailed information on the 350 CID / 5.0L / 305 CID / 5.7L and 377 CID / 6.2L engines, including internal components, operation, and specifications. **Section 4: Electrical Systems** covers the starting, ignition, charging, and instrumentation systems, including wiring diagrams. **Section 5: Fuel Systems** details the fuel delivery systems for both carbureted and electronic fuel injection engines, including system operation, disassembly, reassembly, troubleshooting, and diagnostics. **Section 6: Cooling System** provides information on seawater and closed-cooled models. **Section 7: Exhaust System** details the manifolds, elbows, risers, and collectors. **Section 8: Drives** covers Velvet Drive in-line and V-drive transmissions, Velvet Drive 5000 series transmissions, Hurth models, and drive shaft / propeller shaft models. **Section 9: Power Steering System** details the pump and related components. This manual is easy to navigate and understand, thanks to its clear layout, detailed illustrations, exploded diagrams, drawings, and photos. It also features a comprehensive index and bookmarks for quick and easy access to specific information. Whether you are performing routine maintenance or tackling a complex repair, this manual provides the technical information you need to ensure your MerCruiser GM V-8 engine runs smoothly and reliably.

The MerCruiser GM V-8 305 CID (5.0L)/350 CID (5.7L) Engines #24 Service Repair Manual & Supplement 377 CID (6.2L) is a comprehensive guide for marine mechanics and enthusiasts working on a variety of MerCruiser gasoline engines. It covers the popular 305 CID (5.0L) and 350 CID (5.7L) GM V-8 engines commonly used in boats manufactured by Mercury Marine. The manual provides detailed information on these engines, including their design, operation, and maintenance. It features complete instructions for troubleshooting, servicing, and repairing a wide range of components, from the fuel system and ignition to the cooling system and transmission. The manual also includes valuable information for diagnosing and resolving engine problems, ensuring efficient and reliable performance. The Supplement 377 CID (6.2L) provides specialized information for the larger 377 CID (6.2L) engine, which was introduced in the late 1980s. This supplement builds upon the existing information in the #24 Service Repair Manual, focusing on the unique features and differences of this larger displacement engine. This comprehensive documentation helps technicians and boat owners confidently address common issues and perform necessary repairs with accuracy and precision. From detailed wiring diagrams to step-by-step procedures, the manual and supplement serve as invaluable resources for anyone working on these MerCruiser engines. The manual's clear and concise language, combined with its wealth of diagnostic charts, illustrations, and technical specifications, makes it an essential tool for ensuring proper maintenance and extending the lifespan of these powerful marine engines.