This workshop service repair manual covers the DEUTZ 912 and 913 series diesel engines, specifically models FL 912 and B/FL 913/C, which are 4-stroke direct injection diesel engines. These engines are known for their robust engineering and reliability, making them suitable for a wide range of demanding applications. This manual provides comprehensive information to ensure optimal performance and longevity of your DEUTZ engine. The purpose of this manual is to serve as a complete guide for maintenance, servicing, and repair. It includes detailed procedures for component repair, engine disassembly and assembly, and critical adjustments such as valve clearance. You will find in-depth technical specifications, information on commercial and special tools, and illustrated step-by-step instructions. This resource is designed for owners, mechanics, and technicians to effectively maintain and repair the specified DEUTZ diesel engines.