🏷️ Basic Information Identification Make: Mazda Model: RX3 Model Codes: S102A, S124A, S124A (Station Wagon), S132A (Coupe), S132A (Sedan) Production Years Covered: 1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978 👋 Introduction Market Position Market Segment: Compact sports car, affordable performance, enthusiast vehicle. Competitive Analysis Key Competitors: Datsun 240Z, Toyota Corolla GT, Ford Escort Twin Cam, Opel GT. Key Features Unique Selling Proposition: Rotary engine technology offering smooth operation and unique performance characteristics for its class. Body Styles: Coupe, Sedan, Station Wagon. Manual Utility Target Audience: DIY mechanics, professional repair shops, Mazda enthusiasts, restorers. 📋 Manual Details Coverage Areas Primary Coverage: Complete workshop service and repair for Mazda RX3 models 1970-1978. Page Count Estimated Page Count: Likely 500+ pages (typical for comprehensive workshop manuals of this era). Manual Type Type: Workshop Service Repair Manual Language Language: English (Assumed based on common market availability for this model range). Format Format: Digital (PDF/Scanned) or Printed (Likely a reproduction of original factory manual). 📖 Manual Coverage Systems Covered Engine: Rotary engine theory, disassembly, assembly, diagnosis, troubleshooting, lubrication system, cooling system, ignition system, fuel system (carburetion and early injection for later models). Transmission: Manual transmission (4-speed and 5-speed), automatic transmission (TorqueFlite variants), clutch system, driveline, propeller shaft, differentials. Chassis: Front suspension (independent, strut-based), rear suspension (live axle, leaf springs or coil springs depending on variant), steering system (manual and power assist), braking system (front discs, rear drums), wheel alignment specifications. Electrical: Wiring diagrams, charging system (alternator, battery), starting system, lighting system, instrumentation, horn, radio, wipers, power windows (if equipped), fuse and relay locations. Bodywork: Body panel removal and installation, door mechanisms, glass replacement, interior trim, seat removal and installation, bumper removal, body repair techniques (limited to manual scope). Procedures Included Maintenance: Routine maintenance checks (fluid levels, tire pressure), oil change intervals and specifications, filter replacements, tune-up procedures, spark plug gap and replacement, belt adjustment and replacement. Repair: Component disassembly, cleaning, inspection, repair, and reassembly for all major systems. Includes detailed torque specifications and tolerances. Troubleshooting: Diagnostic charts and procedures for common drivability issues, electrical faults, and mechanical problems specific to the RX3 and its rotary engine. Diagnostics: Specific diagnostic steps for rotary engine apex seal wear, lubrication issues, ignition timing, and carburetion problems. Technical Depth Depth: Comprehensive. Covers everything from basic maintenance to complete engine rebuilds, transmission overhauls, and detailed electrical system diagnosis. 📊 Manual Specifications File Format Digital Format: PDF (Searchable text and image-based pages are common for digitized manuals). Print Quality Print Quality: High-resolution scans, ensuring clarity of text, diagrams, and illustrations for readability. Binding Type Binding Type: Not Applicable (for digital). For printed reproductions, typically bound for durability (e.g., spiral-bound, perfect bound). Paper Type Paper Type: Not Applicable (for digital). For printed reproductions, typically on durable, often glossy paper to showcase illustrations. ⚙️ Engine Specifications Primary Engine Engine Type: Mazda Rotary (Wankel) Engine Displacement Cc: 1146 cc (for 12A engine) Engine Codes: 12A Performance Horsepower Gross Approx: 90-110 hp (depending on model year and emissions equipment) Torque Gross Approx Lb-Ft: 100-115 lb-ft (depending on model year and emissions equipment) Fuel System Carburetion: Single or Twin Hitachi downdraft carburetors (e.g., Hitachi HJG 36-48) Fuel Type: Unleaded gasoline (later models may have specifications for unleaded) Cooling System Cooling Type: Liquid-cooled, pressurized system with thermostat and fan. Lubrication System Oil Capacity Quarts: Approx. 5.3 US quarts (including filter) - Consult manual for exact spec. Engine Management Ignition System: Distributor-based, single ignition coil (dual ignition systems may exist on later models or performance variants). 🔧 Transmission Standard Transmission Type: 4-speed manual Optional Transmission Type Optional: 5-speed manual (later models), 3-speed automatic (Chrysler Torqueflite derived, e.g., A413) Features Clutch Type: Dry single-plate clutch Fluid Specs Manual Transmission Fluid: GL-4 gear oil (e.g., SAE 75W-90 or 80W-90 - consult manual for specific viscosity and type) Automatic Transmission Fluid: Dexron II or equivalent ATF (consult manual for exact specification) 📐 Dimensions Exterior Length Mm: Approx. 4030-4050 mm (Coupe/Sedan) Width Mm: Approx. 1570-1600 mm Height Mm: Approx. 1320-1360 mm Wheelbase Mm: Approx. 2300-2310 mm Weights Curb Weight Kg Approx: 900-1050 kg (depending on body style and equipment) Wheels Tires Wheel Size: 13-inch or 14-inch alloy or steel wheels Bolt Pattern: 4 x 110 mm Tire Size Common: 155SR13, 165/70SR13, 175/70SR13 (consult manual for precise fitments) 🛡️ Safety Features Ratings Crash Test Ratings: No formal US NHTSA or Euro NCAP ratings available for this era of vehicle. Active Features Brakes: Front disc brakes, rear drum brakes. Power assist typically optional or standard on higher trims. Passive Features Seat Belts: Lap and shoulder belts (front), lap belts (rear). Steering Column: Collapsible steering column (late 70s safety feature). 💡 Technology Features Infotainment Audio System: Factory AM/FM radio, possibly with an 8-track player or cassette adapter on later models. Aftermarket upgrades are common. Instrumentation: Tachometer, speedometer, fuel gauge, temperature gauge, oil pressure...