The Mazda RX-3, produced from 1971 to 1978, is a notable vehicle recognized for its lightweight rotary engine, offering a distinctive driving experience. This sporty compact coupe, available in Coupe, Sedan, and Rotary Coupe body styles with chassis codes S102, S124, and S132, became an iconic rotary-powered car celebrated for its handling and unique powertrain. Its rotary engine, a 1.2 L or 1.3 L Wankel unit, delivered approximately 100-130 horsepower, paired with a standard 4-speed manual or an optional 3-speed automatic transmission. The RX-3's engineering quality and reliability, characteristic of Mazda's heritage, made it a popular choice in key markets including Japan, Australia, North America, and Europe during its production run. This comprehensive factory service repair manual provides extensive information for maintaining and repairing the Mazda RX-3 models from 1970 to 1978. It covers all major systems, including detailed procedures for engine, transmission, brake, electrical, suspension, steering, cooling, fuel, and emission systems, alongside chassis and body repairs. The manual includes step-by-step instructions, hundreds of photos and illustrations, general maintenance schedules, and troubleshooting guides to assist both do-it-yourself enthusiasts and professional mechanics. With its complete factory service information, this manual is an invaluable resource for ensuring the longevity and optimal performance of your Mazda RX-3. 🏷️ Basic Information Identification Make: Mazda Model: RX-3 Model Variant: RX3 Product Name: Mazda RX3 RX-3 1970-1978 Service Repair Manual PDF Codes Chassis Codes: S102, S124, S132 (Coupe, Sedan, Rotary Coupe) 👋 Introduction Market Position Target Audience: Do-it-yourself enthusiasts and professional mechanics Competitive Analysis Advantage Over Paper: Lower cost, convenience, instant access, searchability, print-on-demand Key Features Completeness: Complete official full factory service repair manual Cost Effectiveness: Inexpensive way to keep vehicle working properly, saving on mechanic fees Accessibility: Accessible on multiple devices via web browser or downloaded application Data Retention: No expiry dates, permanent access 📋 Manual Details Coverage Areas Model Years Covered: 1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978 Body Styles Covered: All styles (Coupe, Sedan, Rotary Coupe) Page Count Estimated Page Count: Hundreds of pages (estimated 800-1200 pages based on typical factory manuals of the era) Manual Type Type: Factory Service Repair Manual Language Language: English Format Digital Format: PDF 📖 Manual Coverage Systems Covered Engine Service Repair: Complete overhaul, component diagnosis, troubleshooting Transmission Service Repair: Manual and Automatic transmission overhaul, diagnosis Brake System: Hydraulic system, components, troubleshooting, bleeding procedures Electrical System: Wiring diagrams, component testing, circuit diagnosis Suspension: Front and rear suspension components, alignment, troubleshooting Steering: Steering gearbox, linkages, troubleshooting Cooling System: Radiator, water pump, thermostat, hoses, troubleshooting Fuel System: Carburetor(s) (likely Hitachi or Mikuni), fuel pump, lines, troubleshooting Fuel Injection: Applicable models/years with fuel injection systems Emission System: Emission control components, troubleshooting Heater Air Conditioning: HVAC system components, operation, maintenance Chassis Body: Frame, body panels, doors, windows, trim Restraint System: Seat belts, passive restraint systems (if applicable) Interior: Seating, dashboard, trim, instrumentation Differential Drive: Rear axle and differential overhaul, maintenance Axle: Front and rear axle components, maintenance Procedures Included General Maintenance: Scheduled maintenance, fluid changes, filter replacements Troubleshooting: Diagnostic charts, symptom-based problem solving Engine Repair: Complete engine rebuild procedures, component replacement Transmission Repair: Step-by-step overhaul and repair for various transmission types Brake Repair: Brake pad/shoe replacement, caliper/cylinder overhaul, drum turning Wiring Diagrams: Detailed electrical schematics for all systems Suspension Repair: Component replacement (shocks, springs, bushings), alignment procedures Periodic Lubrication: Lubrication points and schedules Steering Repair: Steering box adjustment, tie rod end replacement Cooling System Repair: Thermostat replacement, radiator repair, coolant flush Fuel Injection Repair: Diagnosis and repair of fuel injection systems (if equipped) Fuel System Repair: Carburetor tuning, fuel pump replacement, fuel filter service Emission System Repair: Diagnosis and repair of emission control devices HVAC Repair: Component replacement, system servicing Engine Control System Repair: Diagnosis of ignition and engine management systems Chassis Body Repair: Body panel alignment, rust repair guidance Restraint System Repair: Seatbelt inspection and replacement Interior Repair: Dashboard component replacement, trim repair Differential Drive Repair: Rear axle overhaul, gear backlash adjustment Axle Repair: Front and rear axle service Technical Depth Depth: Complete factory service information, suitable for DIY and professional mechanics Illustrations Photos: Hundreds of photos and illustrations included Disassembly Assembly: Step-by-step instructions based on complete disassembly of components 📊 Manual Specifications File Format Compatibility: Windows (all versions), Mac, Linux (via PDF reader), Mobile Devices (via browser) Software Requirements: Adobe Acrobat Reader (free), WinZip or equivalent (free) Print Quality Printability: Printable (entire manual or select pages) Binding Type Binding Type: N/A (Digital PDF format) Paper Type Paper Type: N/A (Digital PDF format) ⚙️ Engine Specifications Primary Engine Engine Type: Rotary (Wankel) Rotary Displacement: 1.2 L (two rotors, each 573 cc) or 1.3 L (two rotors, each 654 cc) depending on specific model variant and market Engine Code Examples: 12A, 13A (less common, early models) Performance Horsepower Range: Approximately 100-110 hp for early 1.2L, up to 130 hp for...