This workshop service repair manual provides comprehensive information for the Volvo TAD1640GE, TAD1641GE, and TAD1642GE diesel engines. These engines, part of the TAD164xGE series, feature a displacement of 16.1 liters and offer varying power outputs depending on the specific model. Engineered for reliability and performance, these engines are designed to meet demanding operational requirements. This manual covers multiple iterations and generations of these engine models, ensuring broad applicability for service and maintenance needs. The purpose of this manual is to guide owners, mechanics, and technicians through the proper maintenance, repair, and rebuilding procedures for the specified Volvo engines. It includes detailed sections on engine identification, general precautions, disassembly and assembly, maintenance checklists, troubleshooting, and servicing specifications, including tightening torques. With step-by-step instructions, hundreds of illustrations, and critical notes, cautions, and warnings, this manual is an essential resource for ensuring the longevity and optimal performance of your Volvo engine.