This comprehensive service repair manual provides detailed instructions and technical information for the Nissan L20A and L24 series model engines. The manual is a valuable resource for anyone looking to perform repairs, maintenance, and troubleshooting on these engines. It covers a wide range of topics, including engine general, engine tune-up, engine mechanical, engine lubrication system, cooling system, fuel system, emission control system, engine electrical system, and service equipment. Each section includes detailed diagrams, real photographs, and step-by-step instructions to guide you through every operation. With its wealth of information, this manual empowers you to diagnose and resolve issues confidently, saving you time and money.

The Nissan L20A and L24 series engines are a family of inline-six gasoline engines produced by Nissan from 1968 to 1984. These robust and reliable powerplants were a hallmark of Nissan's engineering prowess and saw widespread use in a variety of vehicles, including the Datsun 510, 610, and 810, as well as the Skyline GT-R. The L20A, with a displacement of 2.0 liters (1,988 cc), was the smaller of the two, while the L24, featuring a 2.4-liter (2,389 cc) displacement, offered more power. Both engines employed an overhead camshaft design and featured a cast-iron block and a cast-aluminum cylinder head. The L20A and L24 were known for their smooth running characteristics, exceptional torque delivery, and impressive durability.

The L20A and L24 series engines played a pivotal role in Nissan's success in the global automotive market during the 1970s and early 1980s. They were particularly popular in North America and Europe, where their fuel efficiency and reliability were highly valued. The engines were also favored by tuning enthusiasts, as their robust design allowed for significant power increases with relatively simple modifications. While the production of the L20A and L24 series ended in 1984, they remain beloved by car enthusiasts and collectors for their impressive performance and enduring legacy. The Nissan L20A and L24 series engines are a testament to Japanese engineering excellence, offering a classic example of a reliable and efficient powerplant that continues to be cherished by enthusiasts worldwide.