🏷️ Basic Information Identification Make: Mazda Model: RX3 / RX-3 Generation: First Generation Model Codes: S102, S124A, S124B, S132, S132A, S132B, S132C 👋 Introduction Market Position Market Segment: Compact Sports Coupe/Sedan Competitive Analysis Competitors: Datsun 240Z, Toyota Celica, Ford Escort (performance variants), other small sporty coupes of the era. Key Features Unique Selling Proposition: Rotary engine technology, sporty styling, affordable performance. Manual Target Audience Target Users: Professional technicians and experienced DIY mechanics with basic electrical and mechanical knowledge. Manual Value Proposition Value For Owners: Provides factory-level repair information to enable informed maintenance and repair decisions, potentially saving significant costs. 📋 Manual Details Coverage Areas Covered Years: 1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978 Page Count Estimated Page Count: Likely 1000+ pages (typical for a comprehensive factory-style service manual of this era) Manual Type Type: Repair Service Manual Language Language: English Format Format: PDF Delivery Delivery Method: Instant Download Requirements Software Requirements: Adobe PDF Reader, WinZip Compatibility Operating Systems: All Versions of Windows & Mac 📖 Manual Coverage Systems Covered Engine And Powertrain: Rotary (Wankel) engine operation, disassembly, assembly, lubrication, cooling, fuel system, ignition system, exhaust system, rotary specific maintenance. Transmission And Drivetrain: Manual transmission overhaul, clutch system, driveshaft, differential, axle shafts. Chassis And Suspension: Front and rear suspension systems, shock absorbers, springs, steering system, power steering (if applicable). Brakes: Front disc brakes, rear drum brakes, brake system diagnostics, hydraulic system, parking brake. Electrical System Electrical: Wiring diagrams, battery, charging system (alternator), starting system, lighting system, instrumentation, accessories, fuse box. Body And Interior Body: Body panel repair, door mechanisms, glass, trim, interior components, seats, dashboard. Procedures Included Maintenance: Routine maintenance checks, fluid changes (oil, coolant, brake fluid), filter replacements, tune-ups, lubrication points. Diagnostics And Troubleshooting: Systematic troubleshooting guides, symptom-based diagnostics for engine, electrical, and mechanical issues. Repair And Overhaul: Step-by-step instructions for component disassembly, repair, cleaning, assembly, and reinstallation. Technical Specifications: Torque specifications, clearances, tolerances, fluid capacities, electrical resistance values. Technical Depth Depth: Comprehensive, covering from basic maintenance to complete engine and transmission rebuilds, including detailed electrical schematics. Wiring Diagrams: Comprehensive electrical schematics for all vehicle systems, aiding in diagnosis of electrical faults. Specific Procedures Engine Rebuild: Detailed procedures for complete rotary engine disassembly, component inspection, part replacement (apex seals, side seals, springs, O-rings, gaskets), and reassembly. Ignition System Tuning: Setting dwell angle, ignition timing, spark plug gap, and troubleshooting ignition circuit faults. Manual Completeness Completeness: Likely a full factory service manual equivalent, providing end-to-end repair and maintenance information. 📊 Manual Specifications File Format Format: PDF Print Quality Printability: Full Printable Zoom Functionality: YES (Zoom IN/OUT) Binding Type Binding Type: Digital Download (No physical binding) Paper Type Paper Type: N/A (Digital) ⚙️ Engine Specifications Primary Engine Engine Type: Rotary (Wankel) Engine Engine Variants: 12A (571cc x 2 chambers = 1142cc effective displacement) Performance Horsepower Range: Approximately 100-135 HP (depending on specific market and engine variant/tuning) Torque Range: Approximately 110-125 lb-ft Fuel System Carburetion: Single or twin Weber side-draft carburetors, or Hitachi/Mikuni carburetors depending on trim and market. Later models may have fuel injection. Fuel Type: Unleaded gasoline (as regulations evolved) Maintenance Considerations Rotary Specific Maintenance: Apex seal wear, oil metering, coolant seal integrity, carbon build-up, engine oil type and viscosity critical. 🔧 Transmission Standard Transmission Type: 4-speed manual transmission (standard on many models) Optional Transmission Type Optional: 3-speed automatic transmission (optional on some variants) Features Clutch Type: Single dry plate clutch Maintenance Transmission Fluid Type: GL-4 gear oil (e.g., SAE 80W-90, specific Mazda recommendation crucial) 📐 Dimensions Exterior Body Styles: Coupe, Sedan, Hatchback (RX3 Wagon/Van also existed but less common in global markets) Weights Curb Weight: Approximately 2,200 - 2,500 lbs (1000 - 1135 kg) 🛡️ Safety Features Ratings Safety Ratings Era: NHTSA/IIHS ratings not available for this era; primarily based on manufacturer safety features and design principles of the time. Active Features Active Safety: Disc front brakes, adequate handling for its class. Passive Features Passive Safety: Seat belts, strong chassis construction for the era. 💡 Technology Features Infotainment Infotainment System: Basic AM/FM radio, optional 8-track player or cassette deck. Analog instrumentation. Driver Assistance Driver Assistance Features: None; technology of the era was focused on mechanical systems. 🔧 Maintenance Service Intervals Oil Change Interval: Every 3,000 miles (4,800 km) or 3 months, whichever comes first. Critical for rotary engines. Spark Plug Replacement: Check and clean every 15,000 miles (24,000 km); replace as needed. Specific spark plug types are critical for rotary engines. Coolant Flush: Every 2 years or 30,000 miles (48,000 km). Fluid Specifications Engine Oil Specification: API SF or SG category oil, SAE 10W-30 or 10W-40 recommended for most climates. Consult manual for exact specs. Rotary-specific oils or additives for apex seals are often recommended by enthusiasts. Coolant Specification: Ethylene glycol based coolant, typically a 50/50 mix with distilled water. Mazda specific coolant or equivalent. Brake Fluid Specification:...