🏷️ Basic Information Identification Make: Mazda Model: RX3 Model Generations Covered: First Generation (Savy/Custom/Super Deluxe/GSL variants) Model Years Covered: 1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978 Codes Chassis Codes: AP (sedan), AG (coupe), AH (wagon) 👋 Introduction Market Position Vehicle Segment: Compact/Subcompact car, Sporty Coupe/Sedan/Wagon Target Demographic: Enthusiasts, performance-oriented buyers, individuals seeking distinctive Japanese engineering. Competitive Analysis Key Competitors Era: Datsun 510, Toyota Corolla, Honda Civic (early generations), various European compacts. Unique Selling Proposition: Innovative Wankel rotary engine, sporty handling, stylish Japanese design. Key Features Engine Technology: Wankel Rotary (12A), known for smooth operation, high RPM capability, and compact size. Design Aesthetics: Clean, sporty lines, popular in coupe and sedan body styles. Performance Orientation: Designed with handling and a sporting character in mind, often a popular choice for modification. 📋 Manual Details Coverage Areas Coverage Overview: Comprehensive service and repair information for all systems of the Mazda RX3 from 1970-1978. Engine Coverage: Rotary Engine (12A), including maintenance, disassembly, reassembly, troubleshooting, and tuning. Transmission Coverage: Manual and Automatic transmissions, including overhaul, clutch service, and driveline components. Chassis Suspension Steering Coverage: Front and rear suspension, steering system, wheel alignment specifications, and component replacement. Brake System Coverage: Front disc brakes, rear drum brakes, hydraulic system, parking brake, and troubleshooting. Electrical System Coverage: Complete wiring diagrams, component testing, charging system, ignition system, lighting, and accessories. Body And Interior Coverage: Body panel repair, interior trim, door mechanisms, glass replacement, and weatherstripping. Cooling And Heating Coverage: Radiator, water pump, heater core, and HVAC system components. Fuel System Coverage: Carburetor(s) (e.g., Hitachi, Mikuni), fuel pump, fuel lines, and tank service. Exhaust System Coverage: Exhaust manifold, pipes, muffler, and catalytic converter (where applicable). Page Count Estimated Page Count: 500+ Manual Type Manual Classification: Factory Service Manual / Repair Manual Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Mechanical Systems: Engine (Rotary 12A), Transmission (Manual/Auto), Drivetrain, Suspension, Steering, Brakes, Fuel, Cooling, Exhaust. Electrical Systems: Ignition, Charging, Starting, Lighting, Gauges, Accessories, Wiring Harnesses. Body And Chassis: Body Panels, Chassis Components, Interior Trim, Glass, Doors, Locks, Seats. Procedures Included Maintenance Procedures: Scheduled maintenance (oil changes, filter replacements, spark plug gap/replacement, fluid checks), ignition timing adjustment, carburetor adjustments. Repair Procedures: Engine rebuild (apex seals, rotor housing inspection, eccentric shaft), transmission overhaul, brake caliper/wheel cylinder service, suspension component replacement, steering rack service. Diagnostic Procedures: Troubleshooting guides for common problems, electrical system diagnostics using multimeters, rotary engine specific diagnostics (compression, lubrication). Adjustment Procedures: Carburetor jetting and float level, ignition timing, idle speed, clutch pedal adjustment, parking brake adjustment. Technical Depth Depth Of Information: Factory-level technical specifications, detailed disassembly and reassembly instructions with torque values, schematics, and diagnostic flowcharts. Special Tool Requirements: Identifies specific tools required for certain procedures, particularly for rotary engine internal work. 📊 Manual Specifications File Format File Type: PDF Searchability: Searchable text content Printability: Printable pages Print Quality Image Resolution: High-resolution scans of original factory diagrams and photographs Binding Type Binding Format Description: Digital PDF download, no physical binding. Paper Type Paper Type Description: N/A (Digital format) ⚙️ Engine Specifications Primary Engine Engine Type: Wankel Rotary Engine Code: 12A Displacement: 1146 cc (effectively, though often compared to larger piston engines) Rotor Housing Design: Two-rotor, single apex seal per rotor Performance Horsepower Range: Approx. 90-105 HP (depending on market and emissions controls) Torque Range: Approx. 100-110 lb-ft Redline: Approx. 6000-7000 RPM Fuel System Carburetion: Single or Twin Hitachi downdraft carburetors (e.g., SU-type, or other twin choke models) Fuel Type: Unleaded gasoline (from later years, earlier may have used leaded) Fuel Pump Type: Mechanical, engine-driven 🔧 Transmission Standard Standard Transmission Type: 4-speed Manual Optional Optional Transmission Type: 3-speed Automatic (likely a Toyo Kogyo or similar) Features Clutch Type: Single dry plate Driveshaft Layout: Rear-wheel drive (RWD) Rear Axle Ratio: Varies by model and transmission, typically around 3.7 to 4.1 📐 Dimensions Exterior Body Styles: 2-door Coupe, 4-door Sedan, 5-door Wagon Wheelbase Coupe: Approx. 95.3 inches (2420 mm) Wheelbase Sedan/Wagon: Approx. 98.0 inches (2490 mm) Weights Curb Weight Range: Approx. 2100-2300 lbs (950-1050 kg) Gross Vehicle Weight Rating: Approx. 3100-3300 lbs (1400-1500 kg) 🛡️ Safety Features Ratings Crash Test Data Availability: Limited historical crash test data for this era; modern standards not applicable. Active Features Braking System: Front disc brakes, Rear drum brakes. Power assistance available on some models. Steering System: Recirculating ball steering. Power steering generally not standard, but an option on higher trims. Passive Features Seat Belts: Standard lap and shoulder belts for front occupants, lap belts for rear occupants. Headrests: Integrated or adjustable headrests on front seats, often a later addition or option. 💡 Technology Features Infotainment Audio System: AM/FM radio, often with an 8-track player or cassette adapter option on later models. Basic speaker setup. Driver Assistance ABS: Anti-lock Braking System (ABS) was not a standard feature and was very rare, if available at...