This workshop service manual provides comprehensive information for the Volvo B19 engine family. The B19 is an inline 4-cylinder engine known for its robust construction and reliable performance, typically featuring a displacement of 1.85 liters (1846 cc). Depending on the specific application and variant, it was equipped with either carbureted or fuel injection systems, and offered power outputs generally ranging from approximately 80 to 100 horsepower. Its SOHC valve mechanism and timing belt drive system contribute to its efficient operation. This manual covers a range of technical details pertinent to the engine's operation and maintenance. The purpose of this English-language workshop service manual is to equip professional technicians with the necessary knowledge for the maintenance, diagnosis, and repair of the Volvo B19 engine. It details critical specifications, including bore, stroke, compression ratios, and fluid capacities, alongside information on cooling and lubrication systems. Procedures for scheduled maintenance, such as oil changes and spark plug specifications, are outlined, along with guidance on ignition timing. This manual serves as an essential resource for ensuring the longevity and optimal performance of the B19 engine.