The Volvo Penta MD6A and MD7A are robust marine diesel engines designed for reliable performance in maritime applications. These engines, likely featuring an inline 2-cylinder configuration, offer power outputs ranging from approximately 10-14 HP for the MD6A and 14-18 HP for the MD7A. With displacements of around 0.6 and 0.7 liters respectively, they are engineered for efficiency and durability. The engines utilize a direct injection diesel ignition system and a mechanical injection pump, supported by a water-cooled exhaust system and an internal gear oil pump. They are compatible with raw water or freshwater cooling systems and are paired with an inboard marine gearbox. This Digital Workshop Repair Manual provides comprehensive guidance for the maintenance, repair, rebuild, refurbishment, and restoration of the Volvo Penta MD6A and MD7A marine diesel engines. Written in English, it covers essential procedures with detailed diagnostic steps and is enhanced by high-quality photos, illustrations, and diagrams. The manual is designed to be accessible to all users, regardless of technical expertise. It serves as an indispensable resource for owners, mechanics, and technicians, ensuring the longevity and optimal performance of these dependable marine propulsion units.