This comprehensive workshop manual provides detailed instructions and guidance for servicing and repairing Nissan L20A and L24 series engines. The manual covers all aspects of maintenance and repair, ensuring you have the necessary information to tackle any task. From routine maintenance procedures to intricate repairs, this manual offers step-by-step instructions, clear illustrations, and wiring diagrams to guide you through each process. You'll find information on everything from engine disassembly and reassembly to troubleshooting and component replacement. Whether you're a professional mechanic or a DIY enthusiast, this manual is an invaluable resource for ensuring your Nissan L20A or L24 engine runs smoothly and reliably.

The Nissan L20A and L24 series engines were a family of inline-six gasoline engines produced by Nissan from 1968 to 1984. These robust and reliable engines were renowned for their smooth operation and durability, finding widespread use in a variety of Nissan vehicles including the Datsun 510, 610, and 810, as well as the iconic 240Z sports car. Both the L20A and L24 shared the same basic design, featuring a cast iron block and aluminum cylinder head, with a displacement of 2.0 liters for the L20A and 2.4 liters for the L24.

The L20A and L24 engines were known for their relatively simple design, which made them easy to maintain and repair. They featured a single overhead camshaft (SOHC) design, pushrod valve actuation, and a carburetor fuel system. The L20A and L24 series engines saw several revisions throughout their production run, including improvements to combustion chamber design, valve train, and fuel system for increased power and efficiency. These engines earned a reputation for their reliability and longevity, often exceeding 200,000 miles with proper maintenance. While they have since been discontinued, the Nissan L20A and L24 series engines remain popular with enthusiasts due to their affordability and ease of modification. The L20A and L24 engines are readily available in the used market, making them a popular choice for building classic Nissan vehicles and hot rods.