This comprehensive Datsun Engine Manual provides detailed instructions and technical information for the repair and maintenance of the H16R and H20 engines. It is a valuable resource for mechanics, enthusiasts, and anyone seeking to understand the intricacies of these powerful Datsun engines.

The Datsun H16 and H20 engines were a pair of robust and reliable gasoline engines produced by the Japanese automaker Datsun, later renamed Nissan, in the 1960s and 1970s. These engines were known for their durability and were widely used in a range of Datsun vehicles, including the popular Bluebird and Sunny models. The H16, also known as the A12, was a 1.2-liter four-cylinder engine that debuted in 1966. It featured a cast-iron block, an aluminum head, and a single overhead camshaft (SOHC) design. The H20, introduced in 1970, was a larger 1.6-liter four-cylinder engine sharing the same basic architecture but with a longer stroke and larger bore than the H16. Both engines were available with various carburetor configurations and offered a balance of power and fuel efficiency for their time.

The Datsun H16 and H20 engines were praised for their simplicity, maintainability, and durability. These characteristics made them popular choices for both daily commutes and recreational driving. The engines were known for their smooth operation and reliable performance, making them well-suited for a variety of driving conditions. Despite their age, these engines remain highly sought after by enthusiasts and collectors due to their reliability and affordability. The availability of repair manuals, such as the one mentioned, further supports their continued relevance in the classic car community. These manuals provide detailed instructions for servicing, repairing, and maintaining these iconic engines, ensuring that they can continue to run smoothly for many years to come.