The Mazda RX-3, produced in 1975 as part of its first generation facelift, represents Mazda's dedication to innovative rotary engine technology within the compact sports car segment. Known in Japan as the Savy II and in some export markets as the Mizer, this model offered a distinctive driving experience characterized by its unique Wankel engine, the 12A, which provided approximately 90-110 horsepower. Available in coupe, sedan, and wagon body styles, the RX-3 was a stylish and sporty competitor to other compact vehicles of its era, establishing Mazda's reputation for engineering prowess and performance. This comprehensive Workshop Service Repair Manual is designed to assist owners, mechanics, and technicians in maintaining and repairing the 1975 Mazda RX-3. It covers an extensive range of systems, including detailed procedures for engine overhaul and component replacement, transmission service, brake systems, electrical systems with wiring diagrams, suspension, steering, and heating/air conditioning. The manual provides factory-level detail on general maintenance, diagnostic procedures, and repair instructions, ensuring the longevity and optimal performance of your vehicle. 🏷️ Basic Information Identification Make: Mazda Model: RX-3 Year: 1975 Chassis Code: Savy II (Japan) / Mizer (some export markets) Generation Generation: First Generation (First Facelift) 👋 Introduction Market Position Description: The Mazda RX-3 was a significant model for Mazda, showcasing their pioneering rotary engine technology in a compact, sporty package. It competed in the affordable sports coupe/sedan segment. Competitive Analysis Competitors: Competed with vehicles like the Toyota Corolla Levin/Sprinter Trueno, Datsun 1200/Sunny, and other compact sporty cars of the era. Key Features Rotary Engine: Distinctive rotary (Wankel) engine provided a unique driving experience and compact power unit. Styling: Offered in coupe, sedan, and station wagon body styles, with a focus on sporty and stylish design. Manual Value User Suitability: Aimed at technicians, mechanics, and owners who want to perform repairs, maintenance, or learn about the vehicle's intricacies. 📋 Manual Details Coverage Areas General Maintenance: True Troubleshooting: True Engine Service Repair: True Transmission Service Repair: True Brake System: True Wiring Diagram: True Electrical System: True Suspension: True Periodic Lubrication: True Steering: True Cooling System: True Fuel Injection: True Fuel System: True Emission System: True Heater Air Conditioning: True Engine Control System: True Chassis Body: True Restraint System: True Interior: True Differential Drive: True Axle: True Page Count Estimated Page Count: Hundreds to Thousands Manual Type Type: Workshop Service Repair Manual Language Language: English Format File Format: PDF File Compression: May require WinZip for larger files Compatibility Operating Systems: All Versions of Windows & Mac Requirements Software: Adobe PDF Reader 📖 Manual Coverage Systems Covered Engine Systems: Rotary engine (12A) overhaul, component replacement, tuning, lubrication, cooling, fuel delivery (carburetor and early fuel injection on some variants). Transmission Systems: Manual and automatic transmission service, gear changes, clutch assembly, driveline components, differential service. Braking Systems: Front disc and rear drum brake systems, hydraulic lines, master cylinder, wheel cylinders, parking brake. Electrical Systems: Complete wiring diagrams, starter, alternator, ignition system, lighting, gauges, switches, fuses, battery service. Suspension Steering: Front independent suspension (struts, control arms), rear leaf spring suspension, power steering (if equipped), steering column, steering linkage. Body Chassis: Body panel repair, chassis lubrication, door mechanisms, window regulators, structural components. Heating Cooling Ac: Heater core, blower motor, defroster, and air conditioning system service (if factory equipped). Fuel And Emission Systems: Carburetor service and adjustment, fuel tank, fuel lines, emission control devices (e.g., air injection). Procedures Included Maintenance Procedures: Routine checks, fluid changes, filter replacements, spark plug replacement (for piston variants, though RX-3 is rotary), lubrication points. Diagnostic Procedures: Troubleshooting guides for common drivability issues, electrical faults, and mechanical problems. Repair Procedures: Step-by-step instructions for component removal, disassembly, inspection, repair, and reassembly. Rebuild Procedures: Detailed instructions for engine rebuild (apex seals, rotor housing inspection), transmission overhaul, brake caliper/wheel cylinder rebuilding. Electrical Troubleshooting: Diagnosis of wiring issues, component testing using multimeters, fault finding based on symptoms. Alignment Specifications: Wheel alignment angles (camber, caster, toe), steering alignment. Technical Depth Depth: Comprehensive factory-level detail, suitable for professional technicians and dedicated DIY enthusiasts. Includes torque specifications, clearances, timing settings, and diagnostic charts. 📊 Manual Specifications File Format Format: PDF Print Quality Quality: Great Quality, Printable Binding Type Binding: Digital Download (PDF) Paper Type Paper Type: N/A (Digital) ⚙️ Engine Specifications Primary Engine Engine Type: Rotary (Wankel) Engine Code: 12A Displacement: 1146 cc (effective displacement) Performance Horsepower: Approx. 90-110 hp (depending on market and specific variant) Torque: Approx. 95-105 lb-ft (depending on market and specific variant) Fuel System Fuel Delivery: Primarily downdraft carburetor (e.g., Hitachi), with potential for early fuel injection systems on some later or export models. Engine Management Ignition System: Distributor-based ignition system, dual ignition on some performance variants. 🔧 Transmission Standard Transmission Type: 4-speed manual transmission Optional Transmission Type: 3-speed automatic transmission Features Clutch: Single dry plate clutch (manual transmission) 📐 Dimensions Exterior Body Styles: 2-door Coupe, 4-door Sedan, 2-door Van/Wagon...