This workshop repair and service manual details the Nissan/Datsun L14, L16, and L18 engines. These engines represent a significant part of the engineering heritage of Nissan/Datsun, known for their robust design and reliable performance across various applications. This manual is an essential resource for understanding the intricacies of these powerplants, ensuring their continued operational excellence. The purpose of this manual is to provide comprehensive guidance for the maintenance, repair, and servicing of the L14, L16, and L18 engines. It covers essential procedures, technical specifications, and troubleshooting information necessary for both routine upkeep and more involved repairs. Owners, technicians, and mechanics will find this document invaluable in preserving the longevity and optimal function of their Nissan/Datsun vehicles equipped with these engines.