This workshop service repair manual provides comprehensive information for the Hino W04C-TI marine engine. Designed for both do-it-yourself enthusiasts and experienced mechanics, this manual offers detailed instructions and insights to ensure optimal performance and longevity of your engine. Its thorough coverage and step-by-step guidance, supported by numerous illustrations, aim to empower users with the knowledge to maintain and repair their Hino W04C-TI marine engine effectively. The scope of this manual is extensive, covering critical areas such as engine identification, general precautions, disassembly and assembly procedures, maintenance schedules, and specific system servicing including the fuel, cooling, and exhaust systems. It also includes detailed sections on troubleshooting, servicing specifications, tightening torques, and electrical system diagnostics with wiring diagrams. This resource is intended to be the primary source for all repair and service needs, enabling users to confidently diagnose and resolve issues, thereby keeping their engine in optimal working condition.