The Mazda RX-2 and RX-3 models, produced from 1970 to 1978, represent a significant chapter in automotive history, particularly for their pioneering use of rotary (Wankel) engine technology. These vehicles, available in various body styles including coupes, sedans, and wagons, were engineered to offer a distinct driving experience characterized by smoothness and unique performance. Chassis codes such as S102A, S124A, S108A, and S127A identify specific configurations. With their compact rotary engines, typically the 12A variant, and a focus on sporty handling, the RX-2 and RX-3 appealed to enthusiasts seeking an alternative to conventional piston engines, cementing Mazda's reputation for innovation in the automotive industry. This comprehensive service repair workshop manual provides essential information for the maintenance and repair of Mazda RX-2 and RX-3 vehicles. It covers a wide array of systems, including detailed procedures for engine mechanical and electrical components, fuel and emission control systems, drivetrain, suspension, steering, and braking. The manual also details body and interior repairs, HVAC systems, and provides troubleshooting guidance, diagnostic procedures, and crucial technical specifications. Designed for DIY enthusiasts, independent mechanics, and professional technicians alike, this English-language manual aims to facilitate accurate repairs, enable cost savings, and enhance understanding of these classic rotary-powered Mazdas. 🏷️ Basic Information Identification Make: Mazda Model: RX-2 / RX-3 Model Years Covered: 1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978 Codes Chassis Codes Rx2: S102A, S124A Chassis Codes Rx3: S124A, S108A, S127A 👋 Introduction Market Position Positioning: Essential resource for owners and mechanics of vintage Mazda rotary vehicles. Competitive Analysis Competitor Manuals: Provides dealership-level technical information, surpassing generic repair guides. Key Features Key Benefit 1: Enables cost savings on maintenance and repairs. Key Benefit 2: Empowers owners to understand and communicate effectively with technicians. Key Benefit 3: Contains manufacturer-specific procedures for accurate repairs. Visual Aid Quality: Includes diagrams, illustrations, and wiring schematics. 📋 Manual Details Coverage Areas Manual Type: Service Repair Workshop Manual Language: English Format: PDF Download Digital Delivery: Instant Download Compatibility: Windows, macOS, Tablets, Smartphones, E-readers 📖 Manual Coverage Systems Covered Engine Mechanical: Complete engine disassembly, inspection, repair, and reassembly. Rotary engine specifics, apex seals, rotor housing, eccentric shaft, lubrication system. Engine Electrical: Ignition system, starting system, charging system, wiring diagrams, component testing. Emission Control: Exhaust systems, emission control devices, troubleshooting emission-related issues. Fuel System: Fuel tank, fuel lines, fuel pump, carburetor (likely Zenith Stromberg or similar), troubleshooting fuel delivery. Clutch System: Clutch operation, hydraulic system, clutch disc, pressure plate, release bearing, adjustment and replacement. Manual Transaxle: Gearbox disassembly, inspection, repair, lubrication, shift linkage. Automatic Transaxle: Automatic transmission diagnosis, adjustment, fluid changes, and minor repairs (if applicable to specific models). Driveshaft Axle: Driveshaft, universal joints, rear axle assembly, wheel bearings. Suspension System: Front and rear suspension components, shock absorbers, springs, bushings, alignment specifications. Steering System: Steering column, steering box/rack and pinion, tie rods, power steering system (if equipped), alignment. Restraint System: Seat belts, structural integrity related to safety. Brake System: Front and rear brakes (likely disc front, drum rear), hydraulic system, master cylinder, brake lines, pads/shoes, bleeding procedures. Body Interior Exterior: Body panel repair, door mechanisms, window regulators, trim components, interior trim, weatherstripping. Body Electrical: Headlights, taillights, interior lighting, wipers, horn, dashboard instruments, wiring schematics. HVAC: Heating, ventilation, and air conditioning system diagnosis and repair (if equipped). Procedures Included Maintenance: Routine maintenance, fluid changes, filter replacements, lubrication, tune-ups. Troubleshooting: Diagnostic procedures for common and uncommon problems across all vehicle systems. Repair: Detailed step-by-step repair instructions for virtually all mechanical and electrical components. Diagnostics: System-specific diagnostics, including electrical testing and mechanical checks. Wiring Schematics: Comprehensive electrical wiring diagrams for various systems and trim levels. Specifications: Torque specifications, clearances, fluid capacities, electrical values, diagnostic parameters. Technical Depth Depth Level: Comprehensive (from basic maintenance to major overhauls). User Target Audience: DIY enthusiasts, independent mechanics, professional technicians. 📊 Manual Specifications File Format Digital Format: PDF Searchability: Searchable text content for quick information retrieval. Print Quality Printability: All pages printable for workshop use. Binding Type Digital Binding: N/A (Digital File) Paper Type Digital Paper Type: N/A (Digital File) Manual Completeness Completeness: Complete and intact, no missing or corrupt parts. Content Quality: Accurate, clear, and concise text with diagrams and illustrations. ⚙️ Engine Specifications Primary Engine Engine Type: Rotary (Wankel) Engine Code Rx2 12A: 12A (typically 1.3L equivalent) Engine Code Rx3 12A: 12A (typically 1.3L equivalent) Engine Code Rx3 12B: 12B (later models, potentially twin-rotor, higher displacement) Performance Horsepower Range 12A: Approximately 100-120 hp (depending on specific trim and tuning) Torque Range 12A: Approximately 115-130 lb-ft (depending on specific trim and tuning) Fuel System Carburetion Type: Single or Dual Barrel Carburetor (e.g., Zenith Stromberg, Hitachi) Fuel Type: Unleaded Gasoline (Octane rating as per manual) Fuel Pump Type: Mechanical or Electric (model dependent) 🔧 Transmission Standard Transmission Type: 4-speed Manual Transaxle Optional Transmission Type Optional: 3-speed Automatic Transaxle (less common, but available on some...