This comprehensive 1977 Mazda RX-3 Service and Repair Manual provides detailed instructions, diagrams, and specifications for maintaining, servicing, diagnosing, and repairing your vehicle. It covers all models and repairs from A to Z, giving you the same information used by technicians at Mazda dealerships.

Inside the manual, you will find step-by-step instructions, illustrations, wiring schematics, and specifications to guide you through every repair. It covers everything from basic maintenance like oil changes and tire rotations to more complex repairs like engine overhauls and transmission replacements.

The manual is organized by system, making it easy to find the information you need. Sections include:

* **Maintenance:** Routine maintenance procedures, schedules, and fluid specifications.
* **Engine:** Everything about the rotary engine, including specifications, troubleshooting, and repair procedures.
* **Control System:** Detailed information on the engine's control system, including fuel injection, ignition, and emissions systems.
* **Mechanical:** Covers the mechanical components of the vehicle, including the transmission, drivetrain, suspension, and brakes.
* **Fuel Service Specifications:** Detailed specifications for fuel systems, including fuel lines, pumps, and filters.
* **Emission Control:** In-depth information on the vehicle's emission control systems, including catalytic converter and exhaust systems.
* **Intake Exhaust Cooling:** Covers the design and operation of the intake and exhaust systems, including cooling systems.
* **Lube:** Information on lubricants, including oil, grease, and fluids.
* **Ignition Starting Charging:** Covers the ignition, starting, and charging systems, including troubleshooting and repair procedures.
* **Auto Transmission Clutch:** Covers the automatic transmission, including operation, troubleshooting, and repair procedures.
* **Manual Transmission:** Covers the manual transmission, including operation, troubleshooting, and repair procedures.
* **Transfer Propeller Shaft:** Covers the transfer case and propeller shaft, including operation, troubleshooting, and repair procedures.
* **Drive Shaft:** Covers the driveshaft, including operation, troubleshooting, and repair procedures.
* **Differential:** Covers the differential, including operation, troubleshooting, and repair procedures.
* **Axle Suspension:** Covers the axles and suspension, including operation, troubleshooting, and repair procedures.
* **Tire & Wheel:** Covers the tires and wheels, including specifications, maintenance, and repair procedures.
* **Brake Control:** Covers the brake system, including operation, troubleshooting, and repair procedures.
* **Brake:** Covers the brake system, including operation, troubleshooting, and repair procedures.
* **Parking Brake:** Covers the parking brake, including operation, troubleshooting, and repair procedures.
* **Steering Column:** Covers the steering column, including operation, troubleshooting, and repair procedures.
* **Power Steering:** Covers the power steering system, including operation, troubleshooting, and repair procedures.
* **Air Condition:** Covers the air conditioning system, including operation, troubleshooting, and repair procedures.
* **Suppl Restraint System:** Covers the supplemental restraint system, including airbags and seatbelts.
* **Seat Belt:** Covers the seat belt system, including operation, troubleshooting, and repair procedures.
* **Engine Immobilizer:** Covers the engine immobilizer system, including operation, troubleshooting, and repair procedures.
* **Cruise Control:** Covers the cruise control system, including operation, troubleshooting, and repair procedures.
* **Wiper & Washer:** Covers the windshield wiper and washer system, including operation, troubleshooting, and repair procedures.
* **Door Lock:** Covers the door lock system, including operation, troubleshooting, and repair procedures.
* **Meter Audio/Visual:** Covers the instrument cluster and audio visual systems, including operation, troubleshooting, and repair procedures.
* **Horn:** Covers the horn system, including operation, troubleshooting, and repair procedures.
* **Windshield/Glass Mirror:** Covers the windshield, glass, and mirrors, including operation, troubleshooting, and repair procedures.
* **Instrument Panel:** Covers the instrument panel, including operation, troubleshooting, and repair procedures.
* **Seat:** Covers the seats, including operation, troubleshooting, and repair procedures.
* **Engine Hood/ Door:** Covers the engine hood and doors, including operation, troubleshooting, and repair procedures.
* **Exterior & Interior:** Covers the exterior and interior of the vehicle, including trim, upholstery, and paint.
* **Electrical:** Covers the electrical system, including wiring diagrams, troubleshooting, and repair procedures.
* **Multiplex/ Can Communication:** Covers the multiplex and CAN communication systems, including operation, troubleshooting, and repair procedures.

This manual is your one-stop resource for all things related to your 1977 Mazda RX-3. You'll be equipped to handle almost any repair or maintenance task, saving you time and money.

The 1977 Mazda RX-3 was a compact sports coupe that represented a pivotal moment in the evolution of the rotary engine. While Mazda had already introduced the RX-2 in 1972, the RX-3 marked a significant shift in its production and availability, making the revolutionary technology accessible to a broader audience. This second-generation RX-3, replacing the first generation known as the "Savanna," was a more refined and practical car, built on a shortened version of the Familia platform.

It boasted a stylish and aerodynamic design, featuring a sloping hood, wraparound front and rear windows, and sleek lines. Mechanically, the RX-3 was powered by a 1.2-liter twin-rotor Wankel rotary engine, producing around 100 horsepower. This engine, touted for its smooth and high-revving nature, delivered a unique driving experience compared to traditional piston engines. Despite its relatively small displacement, the engine's high power-to-weight ratio provided spirited performance, particularly on winding roads. The RX-3 was offered in several trim levels, ranging from basic "S" to luxurious "GS" models, with options including air conditioning, power steering, and vinyl or cloth interiors. Its affordability and sporty character made the 1977 RX-3 a popular choice for enthusiasts and young drivers, solidifying Mazda's reputation for innovative and engaging automobiles.