🏷️ Basic Information Identification Make: Mazda Model: RX-2 / RX-3 Codes Chassis Codes: RX-2: DBA, RX-3: SBA, SRA, SGL Generation Generation Covered: First Generation (RX-2: 1970-1978, RX-3: 1971-1978) 👋 Introduction Market Position Niche: Classic Japanese performance car market. Highly sought after by enthusiasts and collectors of rotary-powered Mazdas. Competitive Analysis Competitors: Datsun (Nissan) 240Z/260Z, Toyota Corolla TE27, early Nissan Skylines. Distinguished by its unique rotary engine technology. Key Features Design: Iconic Rotary Engine (12A), Sporty styling, Lightweight construction, Rear-wheel drive. Value Proposition: Essential documentation for maintaining, restoring, and troubleshooting these rare and cherished Japanese classics. 📋 Manual Details Coverage Areas Model Years: 1971, 1972, 1973, 1974, 1975, 1976, 1977 Body Styles: Coupe, Sedan, Station Wagon (RX-3) Manual Type Type: Workshop Service Repair Manual Language Language: English Format Format: Likely Printed Manual or Digital PDF (common for vintage manuals) 📖 Manual Coverage Systems Covered Powertrain: Rotary Engine (12A), Lubrication System, Cooling System, Fuel System, Ignition System, Exhaust System, Transmission (4-speed manual, 3-speed automatic) Chassis: Front Suspension (MacPherson strut), Rear Suspension (Leaf springs, sometimes coil springs on RX-2), Steering System (Recirculating ball), Braking System (Front discs, rear drums), Wheels and Tires Electrical: Wiring Diagrams, Lighting System, Ignition System, Charging System (Alternator), Starting System, Gauges and Instruments, Horn, Wiper/Washer System Body And Interior: Body Construction, Exterior Panels, Doors, Hood, Trunk, Glass, Interior Trim, Seats, HVAC System (Heating, Ventilation), Body Sealing Procedures Included Maintenance: Oil Changes, Filter Replacements, Spark Plug Inspection/Replacement, Coolant Flush, Belt Adjustments, Brake Pad Replacement, Tire Rotation Repair: Engine Rebuild (Rotary Apex Seal, Rotor Housing, Rotor), Transmission Overhaul, Suspension Component Replacement, Brake System Repair, Electrical Component Diagnosis and Repair, Body Panel Alignment and Repair Troubleshooting: Diagnostic Flowcharts for common problems, Ignition system troubleshooting, Fuel delivery issues, Engine starting problems, Cooling system leaks Technical Depth Depth: Comprehensive: Covers everything from routine maintenance and adjustments to complete engine and transmission overhauls. Includes detailed diagnostic procedures and specifications for professional repair. 📊 Manual Specifications File Format Quality: High-resolution scans of original factory documentation, ensuring clarity of diagrams and text. If PDF, likely searchable text. Print Quality Print Quality: N/A (if digital), High-quality reproduction for printed versions Binding Type Binding: Spiral-bound or Perfect-bound for printed versions, ensuring lay-flat usability. Paper Type Paper Type: Durable, coated paper stock for printed versions to withstand shop use. Completeness Completeness: Likely a complete factory service manual or a very comprehensive aftermarket equivalent covering all major systems. ⚙️ Engine Specifications Primary Engine Engine Type: Mazda 12A Rotary (Wankel) Displacement: 1146 cc (2 x 573 cc rotor chambers) Rotor Design: Triangular rotor with apex seals Performance Horsepower Est: ~110-130 hp (depending on specific market and emission controls) Torque Est: ~115-130 lb-ft (depending on specific market and emission controls) Fuel System Carburetion: Two-barrel downdraft carburetor (e.g., Hitachi or Nikki). Later models may feature fuel injection in some markets. Fuel Type: Unleaded gasoline (premium recommended) Lubrication Oil Type: API SF or SG classification (Consult specific manual for exact viscosity, typically 10W-30 or 10W-40). Oil Capacity Est: Approx. 5 US quarts (4.7 liters) with filter change Cooling System Coolant Type: Ethylene glycol-based antifreeze (50/50 mix with distilled water) Capacity Est: Approx. 10 US quarts (9.5 liters) Ignition System Spark Plugs: Specific rotary spark plugs (e.g., NGK BUR7EQ-11 or similar, consult manual for exact part numbers and gap specification). Emissions Control System: Early models might have basic PCV and air injection systems. Later models incorporated more advanced emissions controls depending on market. 🔧 Transmission Standard Type: 4-speed Manual Transmission Optional Type: 3-speed Automatic Transmission (optional on some models) Features Clutch: Dry single-plate diaphragm spring clutch (manual) Fluid Specifications Manual Transmission Fluid: GL-4 gear oil (Viscosity typically 75W-90 or 80W-90, consult manual for exact specification). Automatic Transmission Fluid: Dexron III or equivalent (consult manual for exact specification). 📐 Dimensions Exterior Wheelbase Est: RX-2: ~95.1 in (2415 mm), RX-3: ~95.9 in (2435 mm) Length Est: RX-2: ~162.8 in (4135 mm), RX-3: ~166.5 in (4229 mm) Width Est: RX-2: ~63.6 in (1615 mm), RX-3: ~64.2 in (1631 mm) Height Est: RX-2 Coupe: ~51.2 in (1300 mm), RX-3 Coupe: ~51.6 in (1310 mm), RX-3 Sedan: ~53.0 in (1345 mm) Weights Curb Weight Est: ~2200-2500 lbs (1000-1135 kg) depending on body style and equipment Gross Vehicle Weight Rating Est: Varies by model and configuration, consult specific vehicle documentation. Wheel And Tire Bolt Pattern: 4 x 110 mm (Common for early Mazdas) Typical Tire Size: 165 SR 13 or 175/70 SR 13 (consult manual or vehicle for exact size) 🛡️ Safety Features Ratings Crash Test Data: No comprehensive crash test data available from modern agencies like NHTSA or IIHS for these vintage models. Safety features were basic by today's standards. Active Features Brakes: Front disc brakes, Rear drum brakes. Power assist may be optional or standard on higher trims. Steering: Non-power assisted recirculating ball steering. Power steering was a rare option....