The LOMBARDINI 1003 FOCS is a robust 1.0-liter, 3-cylinder inline diesel engine known for its reliability and efficient direct injection fuel system. Designed for demanding applications, this liquid-cooled engine family, the FOCS, represents a commitment to durable engineering. While specific production years are detailed within this manual's coverage, the core design emphasizes consistent performance and longevity, making it a dependable choice for various industrial and specialized vehicle needs. This comprehensive Workshop Repair Manual provides essential information for the maintenance and repair of the LOMBARDINI 1003 FOCS engine. It includes detailed diagnostic and repair procedures, thousands of pages of diagrams, electrical schematics, torque settings, and fluid capacities. The manual draws from original factory information, ensuring technical accuracy for owners, mechanics, and technicians. Its purpose is to facilitate effective servicing, troubleshooting, and upkeep, enabling users to maintain the engine's optimal performance and extend its operational life.