This manual covers the RX-2 and RX-3 models, produced from 1970 through 1978. These compact sports coupes and sedans, built on the Rotary Platform, were distinguished by their innovative Wankel rotary engines, offering a unique combination of smooth operation, compact size, and a favorable power-to-weight ratio for their class. Designed with a focus on driver engagement and a stylish, sporty aesthetic, the RX-2 and RX-3 appealed to enthusiasts seeking distinctive engineering and a compelling driving experience, cementing Mazda's reputation in the performance automotive market. This comprehensive factory service manual provides detailed information essential for the maintenance, repair, and diagnosis of your RX-2 or RX-3. It encompasses all major systems, including the rotary engine (12A and 13B variants), transmission, brakes, suspension, steering, and electrical systems. Within its extensive pages, you will find scheduled maintenance procedures, step-by-step repair instructions, diagnostic flowcharts for troubleshooting common issues, and critical technical specifications such as torque values and fluid capacities. This manual is an indispensable resource for owners and technicians aiming to preserve the performance and longevity of these classic rotary-powered vehicles. 🏷️ Basic Information Identification Make: Mazda Model: RX-2 / RX-3 Model Codes: RX-2: SA22C (for coupe/sedan, though often referred to by its specific internal codings); RX-3: S102A, S124A, S132A Platform: Mazda Rotary Platform Generation Generation Designation: First Generation RX-2, First Generation RX-3 👋 Introduction Market Position Market Position: Compact/subcompact sports coupe and sedan targeting performance-oriented buyers and enthusiasts Competitive Analysis Key Competitors: Datsun 240Z/260Z, Toyota Corolla Levin/Sprinter Trueno, Honda Civic, smaller European sports coupes of the era Key Features Unique Selling Proposition: Rotary engine technology offering compact size, smooth operation, and high power-to-weight ratio for its class Design Philosophy: Stylish, compact, and sporty design with a focus on driver engagement Target Audience Target Audience: Enthusiasts seeking unique engineering, a sporty driving experience, and a classic Japanese performance car 📋 Manual Details Coverage Areas Model Years Covered: 1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978 Body Styles Covered: Coupe, Sedan, Wagoon (RX-3) Regions Covered: All markets (North America, Europe, Japan, Australia etc.) Page Count Estimated Page Count: 800-1200 pages (approximate for comprehensive coverage) Manual Type Manual Type: Factory Service Manual / Workshop Manual Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Engine System: Rotary engine (12A, 13B - where applicable), lubrication, cooling, fuel delivery, ignition, emissions control Transmission System: Manual transmissions (4-speed, 5-speed), automatic transmissions (if applicable), clutch operation, drive axles Brake System: Disc brakes (front), drum brakes (rear), hydraulic system, parking brake Suspension Steering: Front independent suspension (MacPherson strut), rear leaf springs/solid axle, steering gearbox, power steering (if equipped) Electrical System: Battery, charging system (alternator), starting system, lighting, gauges, wiring diagrams, fuse/relay locations Body Chassis: Body panel removal/installation, interior trim, glass, seals, chassis components, corrosion protection HVAC System: Heating, ventilation, air conditioning (if factory equipped), component diagnosis and repair Procedures Included Maintenance Procedures: Scheduled maintenance (oil changes, filter replacements, spark plug checks), fluid level checks and top-ups, lubrication points Repair Procedures: Component removal, disassembly, inspection, reassembly, and installation for all major systems Troubleshooting: Diagnostic flowcharts, symptom-based troubleshooting, common problems and solutions Diagnostic Procedures: Engine compression testing, ignition timing adjustment, fuel system pressure checks Technical Specifications: Torque values, clearances, tolerances, fluid capacities, electrical specifications Technical Depth Technical Depth: Complete overhaul and rebuild procedures for engine, transmission, and major mechanical components 📊 Manual Specifications File Format File Format: PDF Searchability: Likely text-searchable (depending on PDF creation) Print Quality Print Quality Recommendation: High-resolution scans for clear diagrams and text Binding Type Binding Type: N/A (PDF Download) Paper Type Paper Type: N/A (PDF Download) ⚙️ Engine Specifications Primary Engine Engine Type: Mazda Rotary (Wankel) Engine Displacement Codes: 12A (1146cc), 13B (1308cc - may appear in later RX-3 variants) Rotor Housing Material: Cast Iron (early), Chrome-plated Aluminum (later variations) Apex Seals: Felt seal with carbon/metal inserts (early), Bronze or Ceramic composites (later upgrades/variations) Performance Horsepower Output 12A: Approx. 90-110 hp (depending on market and emissions regulations) Torque Output 12A: Approx. 100-115 lb-ft (depending on market and emissions regulations) Redline Rpm: Typically 6500-7000 RPM Fuel System Fuel Induction: Carburetor (2-barrel Hitachi, Mikuni, or Solex common), later models may feature fuel injection Fuel Type: Unleaded Gasoline (Octane rating dependent on market, typically 91+ RON) Engine Maintenance Oil Type Recommendation: SAE 10W-30 or 10W-40 (API SF or SG rated, or equivalent) Oil Capacity: Approx. 5 quarts (4.7 Liters) including oil filter Spark Plug Type: NGK BR8ES-11 or equivalent (specific to engine variant and tuning) Ignition Timing Spec: Typically 5-10 degrees BTDC (specific to engine model, check manual) 🔧 Transmission Standard Transmission Type: 4-speed Manual Optional Transmission Type: 5-speed Manual (introduced later in production), 3-speed Automatic Features Clutch Type: Dry single plate with diaphragm spring Transmission Fluid Type: GL-4 Hypoid Gear Oil (SAE 75W-90 or 80W-90) Transmission Fluid Capacity: Approx. 2.5 quarts (2.4 Liters) 📐 Dimensions Exterior Wheelbase:...