The Mazda RX3, produced from 1970 to 1978, represents a significant chapter in Mazda's history, celebrated for its distinctive rotary engine and sporty design. Available in Coupe, Sedan, and Station Wagon body styles, these vehicles, powered by either the 10A (1142cc) or 12A (1308cc) rotary engine, offered a unique driving experience characterized by smooth power delivery and compact engine dimensions. The RX3 was instrumental in establishing Mazda's global reputation for innovation and performance, particularly with its Wankel engine technology, and remains a sought-after model for enthusiasts and restorers. This comprehensive factory service repair manual provides detailed guidance for the complete service and repair of Mazda RX3 models from 1970 through 1978. It covers all essential systems, including the rotary engine, transmission, brakes, electrical components, suspension, and more, offering step-by-step instructions, troubleshooting procedures, and technical specifications. Designed for owners, enthusiasts, and professional technicians, this manual is an indispensable resource for maintaining, diagnosing, and restoring the RX3, ensuring its continued performance and longevity. 🏷️ Basic Information Identification Make: Mazda Model: RX3 / RX-3 Model Years Covered: 1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978 Codes Chassis Codes Implied: S102A (Coupe), S124A (Sedan), S132A (Wagon), S144A (Coupe) Engine Codes Implied: 10A (571cc x 2 rotors), 12A (654cc x 2 rotors) 👋 Introduction Market Position Target Audience: Mazda RX3 owners, enthusiasts, restorers, and independent mechanics. Value Proposition: Enables owners to perform their own maintenance and repairs, saving significant labor costs (estimated $50-$60/hour). Competitive Analysis Differentiation: Official factory manual, providing accurate and complete information comparable to what professional technicians use. Key Features Search Functionality: Searchable PDF for quick information retrieval. Portability: Print only the necessary pages, avoiding wear and tear on a physical manual. Comprehensiveness: Covers all styles of the RX3 for the specified model years. 📋 Manual Details Coverage Areas Primary Coverage: Complete factory service and repair Secondary Coverage: Maintenance, troubleshooting, diagnostics, and restoration Page Count Estimated Page Count: Hundreds (specific count not provided, but described as 'COMPLETE' and 'hundreds of pages') Manual Type Type: Factory Service Repair Manual Authenticity: Actual Genuine Repair Service Factory Manuals (NOT 3rd party) Language Language: English Format File Format: PDF Download 📖 Manual Coverage Systems Covered Engine: Rotary engine service and repair, including Wankel specifics Transmission: Service and repair for manual and potentially automatic transmissions Brakes: Front disc and rear drum brake system service, adjustment, and repair Electrical: Comprehensive electrical system diagnostics, wiring diagrams, component testing, and repair Suspension: Front strut and rear leaf spring suspension service, alignment, and component replacement Steering: Steering gearbox, linkage, and power steering (if equipped) service and repair Cooling: Radiator, water pump, thermostat, and cooling system maintenance and repair Fuel: Carburetor systems (likely Hitachi or Mikuni), fuel pump, fuel lines, and fuel tank service Emission: Emission control systems, PCV, EGR (if applicable), and related components Chassis Body: Body panel repair, frame straightening, door/window mechanisms, and chassis components Interior: Interior trim, seating, dashboard, and accessory installation/repair Drive Axle Differential: Rear axle, differential, and drive shaft service and repair Heater Ac: Heater core, blower motor, and air conditioning system (if equipped) service Engine Control: Engine management systems, ignition timing, and related controls Restraint: Seat belts and passive restraint systems (if applicable) Procedures Included General Maintenance: Oil changes, filter replacements, fluid checks, lubrication, tune-ups Troubleshooting: Diagnostic procedures for various system faults and common problems Engine Repair: Complete engine rebuilds, apex seal replacement, rotor housing machining, porting, and assembly Transmission Repair: Clutch replacement, transmission disassembly and reassembly, gear synchro service Brake Repair: Brake pad/shoe replacement, caliper/wheel cylinder rebuilding, brake fluid flushing Electrical Repair: Wiring harness repair, alternator/starter service, ignition system troubleshooting, lighting diagnostics Suspension Repair: Shock absorber/strut replacement, ball joint service, tie rod end replacement, wheel bearing service Steering Repair: Steering box adjustment and overhaul, power steering pump replacement Cooling System Repair: Radiator removal and repair, water pump replacement, thermostat replacement, coolant flush Fuel System Repair: Carburetor tuning and rebuilding, fuel pump testing and replacement, fuel filter service Chassis Body Repair: Panel alignment, rust repair techniques, body filler application, welding procedures Interior Repair: Seat upholstery replacement, dashboard instrument repair, trim panel fitting Drive Axle Differential Repair: Axle seal replacement, differential fluid change, bearing adjustment Tune Up Procedures: Detailed tune-up specifications, ignition timing, carburetor adjustments, spark plug selection Technical Depth Depth: Comprehensive, covering all aspects from basic maintenance to complete engine rebuilding and diagnostics. Illustrations: Includes detailed illustrations, drawings, and photos. Instructions: Step-by-step instructions with numbered procedures, notes, cautions, and warnings. Diagnostic Capability: Advanced troubleshooting guide for diagnosing and correcting problems. 📊 Manual Specifications File Format Format: PDF Compatibility: Works with all PC-based Windows operating systems and Mac. Print Quality Printability: Printable without any restriction; individual pages or the entire manual can be printed. Resolution: High resolution. Binding Type Digital Binding: Downloadable PDF; can be burned to CD-ROM. Paper Type Digital Paper: N/A (digital format) Delivery Delivery...