🏷️ Basic Information Identification Make: Mazda Model: RX-2 / RX-3 Codes Chassis Codes: S124A (RX-2), S102A/S124A (RX-3 Sedan/Coupe) Generation Production Years Covered: 1970-1978 👋 Introduction Market Position Segment: Compact Sports Coupe/Sedan, Rotary-powered vehicle niche Competitive Analysis Competitors: Datsun 240Z/260Z, Toyota Celica, Ford Capri, Chevrolet Vega, Plymouth Firebird Key Features Unique Selling Points: Unique rotary engine technology, distinctive styling, sporty driving dynamics for its era. Value Proposition For Buyers: Essential for maintaining and restoring these iconic rotary-powered Mazdas, offering in-depth technical guidance for enthusiasts and mechanics alike. 📋 Manual Details Coverage Areas Body Styles: Coupe, Sedan Engine Types: Rotary (12A) Page Count Estimated Pages: 600+ Manual Type Type: Factory Service Manual / Repair Manual Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Powertrain: Rotary Engine (12A), Lubrication, Cooling, Fuel, Ignition, Exhaust Drivetrain: Clutch, Transmission (4-speed Manual, 3-speed Automatic), Driveshaft, Rear Axle Chassis: Suspension (Front & Rear), Steering, Brakes (Front Disc/Rear Drum), Wheels & Tires Electrical: Wiring Diagrams, Lighting, Gauges, Ignition System, Starting & Charging System, Accessories Body: Exterior Body Panels, Doors, Glass, Interior Trim, Seats, HVAC System Procedures Included Maintenance: Oil Changes, Filter Replacements, Spark Plug Checks, Fluid Level Checks, Lubrication Points Troubleshooting: Diagnostic Charts, Common Problems & Solutions, Engine Performance Issues, Electrical Faults Repair: Engine Rebuild, Transmission Overhaul, Brake System Repair, Suspension Component Replacement, Electrical Component Diagnosis & Repair Specifications: Torque Values, Clearances, Fluid Capacities, Dimensional Data, Electrical Component Specs Technical Depth Depth: Comprehensive factory-level detail, suitable for professional mechanics and dedicated enthusiasts. Covers disassembly, inspection, repair, and reassembly of all major components. 📊 Manual Specifications File Format Quality: High-resolution PDF, searchable text, printable pages. Print Quality Resolution: Crisp, clear text and legible diagrams/illustrations. Binding Type Binding: N/A (Digital PDF Download) Paper Type Paper: N/A (Digital PDF Download) ⚙️ Engine Specifications Primary Engine Engine Code: 12A Engine Type: Two-Rotor Wankel Rotary Displacement: 1146 cc (69.9 cu in) Performance Horsepower Approx: 100-125 hp (varies by year/market) Torque Approx: 110-125 lb-ft (varies by year/market) Fuel System Carburetion: Single or Twin Downdraft Carburetors (e.g., Hitachi, Mikuni) Fuel Type: Unleaded Gasoline (later models may require lead substitute or specific tuning) Lubrication Oil Type Spec: API SG or higher recommended (check manual for exact specs for the era, often 10W-30 or 10W-40, plus specific rotary oil injection) Cooling System Coolant Type: Ethylene Glycol based (e.g., 50/50 mix with distilled water) 🔧 Transmission Standard Type: 4-Speed Manual Optional Type: 3-Speed Automatic (e.g., Torqueflite derivative) Features Clutch Type: Dry Single Plate Fluid Specifications Manual Transmission Fluid: GL-4 Gear Oil (e.g., SAE 75W-90 or 80W-90) Automatic Transmission Fluid: Dexron II or equivalent 📐 Dimensions Exterior Wheelbase Rx2: 2480 mm (97.6 in) Wheelbase Rx3: 2420 mm (95.3 in) Length: Approx. 4100-4250 mm (161.4-167.3 in) depending on model/year Width: Approx. 1600 mm (63 in) Height: Approx. 1300-1350 mm (51.2-53.1 in) Weights Curb Weight: Approx. 950-1050 kg (2094-2315 lbs) Gross Vehicle Weight: Not specified, consult manual Wheels Tires Wheel Bolt Pattern: 4x110 mm Tire Sizes: Commonly 165SR13, 175/70SR13 (check manual for specific fitments) 🛡️ Safety Features Ratings Crash Test Results: No modern crash test ratings available for this era. Active Features Braking System: Front Disc Brakes, Rear Drum Brakes (standard); potential for 4-wheel disc on later/performance variants. Steering Type: Recirculating Ball Passive Features Seatbelts: Standard lap belts, potential for shoulder belts on later models. Headrests: Often optional or absent on early models. 💡 Technology Features Infotainment Audio System: AM/FM radio, optional 8-track player. Basic analog controls. Driver Assistance Features: None in the modern sense. Focus on mechanical feedback and driver engagement. Connectivity Features: N/A 🔧 Maintenance Service Intervals Oil Change: Every 3,000 miles or 3 months (recommendation for rotary engines). Spark Plug Check: Every 6,000 miles (specific platinum or semi-metallic plugs often recommended). Rotor Apex Seal Inspection: No set interval, but symptoms of wear (low compression, poor starting) indicate need for inspection/rebuild. Manual details compression testing procedures. Timing Belt Chain: Rotary engines do not have a timing belt; they use chain-driven oil pump and distributor drive. Fluid Specifications Engine Oil Capacity: Approx. 4.5 - 5.0 liters (4.7 - 5.3 US quarts) including oil filter (check manual). Coolant Capacity: Approx. 6.0 liters (6.3 US quarts) (check manual). Brake Fluid: DOT 3 or DOT 4 (check manual for specific recommendation) Known Issues Apex Seals: Wear and tear of apex seals is the most common issue, leading to compression loss. Carburetor Tuning: Can be finicky, requiring precise adjustment; vacuum leaks are common. Cooling System: Overheating can occur if the cooling system is not meticulously maintained due to the compact nature and heat output of the rotary engine. Rust Corrosion: Common for vehicles of this era, particularly in areas exposed to salt and moisture. Manual includes body repair sections. 📚 Vehicle History Brand Heritage Rotary Pioneering: Mazda's commitment to rotary engine technology, starting with the Cosmo Sport. Model Evolution Rx2 Introduction:...