This workshop service repair manual covers Volvo Penta TAD1640GE, TAD1641GE, TAD1642GE, TAD1641VE, and TAD1642VE generating set diesel engines. These in-line six-cylinder diesel engines are engineered for reliable and economical performance, specifically designed for generating set applications. Their robust construction and advanced technology ensure consistent power output and durability, making them a trusted choice for demanding operational environments. This comprehensive manual provides essential information for maintaining and repairing these Volvo Penta engines. It details procedures for service, troubleshooting, and technical specifications, along with important safety guidelines. The content is structured to assist Volvo Penta workshops and qualified service technicians, presupposing a basic understanding of mechanical and electrical work to ensure the efficient and correct upkeep of the generating set diesel engines.