1971–1977 Mazda RX-2 & RX-3 Factory Service Manual

• Essential reference for owners and professional technicians servicing classic 12A rotary-engine passenger cars.
• 245 pages of factory-level technical data, exploded-view schematics, and wiring diagrams covering model years 1971 through 1977.
• Original OEM publication includes specific appendices for 1975–1977 emission control updates and 5-speed manual transmission variants.
• Features over 50 component-specific exploded diagrams and 15 complete wiring schematics tailored to North American variants.
• Delivered as an instant download the moment your payment clears—get straight to work without waiting for shipping.
• Fully indexed, searchable PDF layout optimized for standard letter and A4 shop printing.

Documenting the Classic Mazda Rotary

This OEM service manual outlines the exact maintenance procedures and technical data needed to keep the 1146cc 2-rotor Wankel engine running right. Instead of generic advice, you get the actual factory blueprints. Chapters break down the fuel and exhaust systems, cooling infrastructure, and electrical grids. For later models, a dedicated supplement details the intricate 1975–1977 emission control systems, including essential carburetor adjustments and rotary-specific ignition timing sequences.

Beyond the engine bay, the text heavily documents the suspension, differential, and drivetrain components. You will find precise specifications for wheel bearings, front suspension alignment, and braking systems. Keep in mind that servicing vintage vehicles requires strict adherence to shop safety protocols; always use proper lifting equipment and verify standard operating procedures before tackling heavy chassis work. The guide also outlines vital maintenance intervals for fuel stop checks, periodic lubrication, and component inspections across both manual and automatic transmission models.

Shop Utility and Technical Specifications

Having precise baseline numbers is the difference between a reliable rebuild and endless guesswork. The manual catalogs critical reference values for tuning and component replacement directly from Mazda. For example, it lists the minimum brake disc thickness at 0.433 in. (11 mm) for the RX-2 and notes a wheel cylinder bore of 11/16 in. (17.46 mm).

You will also find fluid capacities clearly mapped out, tracking changes like the cooling system increase from 9.1 liters in 1975 to 9.3 liters for 1976 and later models. Critical fasteners are backed by factory torque figures, such as the 1975 and newer rear spring U-bolt nuts specified at 17–33 ft-lbs (3.8–4.6 mkg), alongside brake pedal free-play tolerances set at 0.2–0.6 in. (5–15 mm).

Note: This page is a contents overview for the original manufacturer publication. It does not provide step-by-step repair or diagnostic instructions, but rather details the technical data and system coverage included in the manual itself.