🏷️ Basic Information Identification Make: Mazda Model: RX-2 / RX-3 Product Type: Factory Service Repair Manual Codes Chassis Codes: S102A (RX-2 Sedan/Coupe), S124A (RX-3 Sedan/Coupe), S133A (RX-3 Wagon), SA22C (RX-7 Series 1 - though not directly covered, provides context for rotary development) 👋 Introduction Market Position Market Position: The RX-2 (Capella Rotary) and RX-3 (Savanna Rotary) represented Mazda's bold early foray into rotary-powered performance vehicles for the mass market, targeting enthusiasts and those seeking a unique driving experience. Competitive Analysis Competitors: Competed with a range of Japanese and European compact and sports cars of the era, offering a distinct technical advantage with its rotary engine. Key rivals included Datsun (Nissan) Z-cars, Toyota Celica, and European coupes like the Ford Capri and Alfa Romeo GT. Key Features Engine Technology: The defining feature was the Wankel rotary engine, known for its smooth operation, high RPM capability, and compact size relative to its power output. Design Styling: Characterized by distinctive Japanese design of the 1970s, featuring clean lines, often with coupe or sedan body styles, and sporty accents. The RX-3 Savanna offered a particularly aggressive and sporty aesthetic. 📋 Manual Details Coverage Areas Covered Years: 1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978 Covered Models: Mazda RX-2 (Capella Rotary), Mazda RX-3 (Savanna Rotary) Page Count Page Count: Estimated 800-1200+ pages (typical for factory service manuals of this era, actual provided count not specified) Manual Type Manual Type: Factory Service Manual / Workshop Manual Language Language: English (Primary, likely original Japanese with translations) Format Format: Digital (PDF, likely scanned from original print, searchability varies) 📖 Manual Coverage Systems Covered Engine: Rotary Engine (12A), lubrication, cooling, fuel delivery, ignition, emission control systems Transmission: Manual transmissions (4-speed, 5-speed), Automatic transmission (optional), clutch operation, driveline Brakes: Front disc brakes, rear drum brakes, hydraulic system, parking brake Suspension Steering: Front independent suspension (struts, control arms), rear leaf springs (RX-2, early RX-3), rear solid axle (later RX-3), steering gearbox, power steering (if equipped) Electrical: Charging system (alternator, battery), starting system, lighting, wipers, instrumentation, wiring diagrams Body Chassis: Body construction, panels, doors, windows, interior trim, chassis components Procedures Included Maintenance: Scheduled maintenance, oil changes, filter replacements, spark plug inspection/replacement, fluid checks Repair: Engine rebuilds, transmission overhaul, brake caliper/cylinder replacement, suspension component replacement, electrical component diagnosis and repair Troubleshooting: Diagnostic charts for common problems, symptom-based troubleshooting guides Specifications: Torque specifications, clearance measurements, timing settings, fluid capacities, electrical resistance values Technical Depth Depth: Comprehensive; covers everything from basic adjustments to complete engine and transmission overhauls, including electrical schematics and diagnostic procedures. 📊 Manual Specifications File Format File Format: PDF Searchable Text: Likely partially searchable if OCR was applied during scanning, but original scanned quality can impact this. Print Quality Print Quality: Dependent on the original scan quality. May include clear diagrams and text, or may have minor artifacts from aging paper. Binding Type Binding Type: N/A (Digital Format) Paper Type Paper Type: N/A (Digital Format) ⚙️ Engine Specifications Primary Engine Engine Type: Two-rotor Wankel Rotary Engine Code: 12A (various configurations) Displacement: 1146 cc (effectively 573 cc per rotor housing, often quoted in larger terms due to volumetric efficiency) Performance Horsepower Range: Approximately 100-130 hp (SAE Gross), depending on year and emissions equipment. Torque Range: Approximately 105-120 lb-ft (SAE Gross), depending on configuration. Fuel System Fuel Delivery: Two downdraft carburetors (e.g., Hitachi SH215 for RX-2, Solex twin-choke for RX-3 variants). Later models may have incorporated rudimentary fuel injection or more advanced carburetion. Ignition Ignition System: Distributor-based, points and condenser ignition; later models transitioned to electronic ignition. Specific timing advance curves and dwell settings are crucial. Cooling Lubrication Cooling System: Water-cooled, thermosiphon and pump-assisted circulation. Radiator and water pump are critical components. Proper coolant mixture is vital. Lubrication System: Integrated oil sump with specialized requirements for rotary apex seal lubrication. Often featured an oil injection system for the engine's internal seals. 🔧 Transmission Standard Standard Transmission: 4-speed manual transmission Optional Optional Transmission: 5-speed manual transmission (introduced later in production), 3-speed automatic transmission Features Clutch Type: Single dry plate, hydraulically actuated clutch Drivetrain: Rear-wheel drive (RWD) 📐 Dimensions Exterior Wheelbase: Varies by body style: RX-2 Coupe (approx. 97.0 in), RX-2 Sedan (approx. 97.0 in), RX-3 Coupe/Sedan (approx. 95.0 - 97.0 in), RX-3 Wagon (approx. 95.0 in) Overall Length: Varies by body style: Approx. 165-170 in for RX-2, Approx. 160-165 in for RX-3 Coupe/Sedan, Approx. 160 in for RX-3 Wagon Width: Approx. 64-65 inches Height: Approx. 51-53 inches for coupes, slightly more for sedans and wagons Weights Curb Weight: Approx. 2200-2500 lbs, depending on body style and equipment. Gross Vehicle Weight Rating: Not commonly specified in enthusiast circles, but essential for load calculations. 🛡️ Safety Features Ratings Crash Test Data: No standardized crash test data (like NHTSA or IIHS) available for this era. Safety features were rudimentary by modern standards. Active Features Braking System: Front...