This Service Repair Manual covers the YANMAR 3JH2 Series marine diesel engine. This robust, 3-cylinder engine features a displacement of 1.67 liters and is designed for reliable performance in marine applications. Its engineering emphasizes durability and efficiency, making it a trusted choice for various maritime needs. The engine utilizes a compression ignition system and indirect injection for optimal fuel combustion.

This comprehensive manual provides detailed information for the maintenance and repair of your YANMAR 3JH2 Series engine. It includes step-by-step procedures for service, assembly, and disassembly, along with essential technical specifications and wiring diagrams. Coverage extends to lubrication, scheduled maintenance intervals for oil changes, fuel filter replacement, and impeller servicing. This resource is designed to assist owners, mechanics, and technicians in ensuring the longevity and optimal performance of the engine.