The 1978 Datsun 810, part of the 910 Series, represents Datsun's strategic move into the mid-size automotive segment for the North American market. This model offered a blend of European-inspired styling, enhanced interior comfort, and the robust performance of its L24 2.4-liter inline-six engine. Available in sedan, hardtop coupe, and wagon body styles, the 810 aimed to provide a reliable and value-oriented alternative to established competitors. Its engineering focused on delivering a smoother, more refined driving experience than previous Datsun offerings, reflecting the brand's growing sophistication and commitment to quality.

This comprehensive factory service manual provides in-depth guidance for the maintenance, repair, and troubleshooting of the 1978 Datsun 810. It covers all major vehicle systems, including the L24 engine, fuel and ignition systems, cooling, lubrication, transmissions (manual and automatic), drivetrain, suspension, steering, brakes, and electrical systems. Detailed procedures for scheduled maintenance, component overhaul, diagnostics, and adjustments are included, along with essential technical specifications and wiring diagrams. This manual is an indispensable resource for owners, mechanics, and technicians seeking to preserve the performance and longevity of their Datsun 810.