🏷️ Basic Information Identification Make: Mazda Model: RX-3 Year: 1975 Codes Chassis Code Prefix: S102 Generation Generation Designation: First Generation (1971-1978) 👋 Introduction Market Position Target Audience: Owners of the 1975 Mazda RX-3, DIY mechanics, classic car enthusiasts Competitive Analysis Value Proposition: Provides essential, detailed information for immediate repairs and ongoing maintenance, saving significant costs compared to professional servicing. Key Features Usability: Easy-to-follow, step-by-step instructions suitable for all skill levels. Accessibility: Instant download format for immediate access. Satisfaction Guarantee: Customer satisfaction guaranteed. 📋 Manual Details Coverage Areas Primary Coverage: Comprehensive Service and Repair Secondary Coverage: Technical Data, Parts Information, Diagrams Page Count Estimated Page Count: Extensive (specific number not provided, but described as 'most complete') Manual Type Type: Workshop Service Repair Manual Language Language: English Format Digital Format: PDF Digital Compatibility: All Versions of Windows & Mac Digital Requirements: Adobe PDF Reader Printability: Printable (all pages) 📖 Manual Coverage Systems Covered Engine Systems: Engine, Lubrication System, Cooling System, Fuel and Emission Control System, Engine Electrical System Drivetrain Systems: Clutch, Manual Transmission, Automatic Transmission, Electronically-Controlled Transmission (if applicable to specific RX-3 trims of '75), Propeller Shaft, Front & Rear Axle Chassis Systems: Steering System, Braking System, Wheels & Tires, Suspension Body And Electrical: Body, Body Electrical System, Heating & Air Conditioning Systems Procedures Included Maintenance Procedures: Routine checks, fluid changes, filter replacements, tune-ups Repair Procedures: Engine overhaul, transmission repair, brake service, suspension component replacement, electrical system troubleshooting Diagnostic Procedures: Troubleshooting guides for common and uncommon issues Installation Procedures: Installation of specific components and accessories (likely inferred) Technical Depth Depth: Comprehensive, suitable for 'Do-It-Yourself' enthusiasts and professional technicians Detail Level: Detailed technical data, diagrams, and step-by-step instructions Part Information: Complete list of parts and pictures 📊 Manual Specifications File Format File Type: PDF Searchability: Likely text-searchable, aiding quick information retrieval Print Quality Print Output: Printable pages for workshop use Binding Type Physical Binding: N/A (Digital Download) Paper Type Physical Paper Type: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Type: Rotary (Wankel) Engine Displacement Cc: 1146 cc (70.3 cu in) - Equivalent rotor housing displacement. Often referred to as 1.1L or 1.2L Engine Code: 12A (Rotary) Performance Horsepower Gross Ps: Approximately 90-100 PS (Gross) depending on specific market and emissions controls for 1975. Torque Gross Lb-Ft: Approximately 100-110 lb-ft (Gross) depending on specific market and emissions controls for 1975. Fuel System Carburetion: Typically twin-barrel carburetor(s). Fuel Type: Unleaded Gasoline (as regulations began to mandate) 🔧 Transmission Standard Transmission Type Standard: 4-speed Manual Optional Transmission Type Optional: 3-speed Automatic Features Clutch Type: Single dry plate (for manual transmission) 📐 Dimensions Exterior Body Styles: Coupe, Sedan, Station Wagon Wheelbase Mm: Approx. 2400 mm (94.5 inches) Length Mm: Approx. 4150-4350 mm (163.4-171.3 inches) depending on body style Width Mm: Approx. 1600-1630 mm (63.0-64.2 inches) Weights Curb Weight Kg: Approx. 950-1050 kg (2094-2315 lbs) depending on body style and equipment 🛡️ Safety Features Ratings Safety Ratings Era: Safety standards of the mid-1970s. Less stringent than modern standards. Active Features Braking System: Front Disc Brakes, Rear Drum Brakes Steering Type: Recirculating ball steering system. Passive Features Seatbelts: Standard lap and shoulder belts Body Construction: Unitary body construction, intended for crash energy absorption relative to the era. 💡 Technology Features Infotainment Audio System: Factory AM/FM radio, potentially with an 8-track player or cassette player depending on trim level and market. Driver Assistance ABS: Anti-lock Braking System (ABS) was not a standard or common option for this model year. Connectivity Connection Ports: N/A (No modern connectivity features like USB or Bluetooth). 🔧 Maintenance Service Intervals Oil Change Interval Miles: Typically 3,000-5,000 miles, or as specified in the manual. Rotary engines require specific oil quality and levels. Spark Plug Replacement Miles: Varies, but typically around 15,000-20,000 miles for the specific rotary-compatible plugs. Timing Belt Replacement: N/A (Rotary engines do not use timing belts; they use chains or direct drive for the rotors). Fluid Specifications Engine Oil Type: API SF or SG classification, SAE 10W-30 or 10W-40 recommended (specific rotary oil requirements should be confirmed in the manual). Coolant Type: Ethylene glycol-based antifreeze. Capacity and mixture ratio specified in the manual. Transmission Fluid Manual: GL-4 Gear Oil, SAE 75W-90 or 80W-90 (check manual for exact spec). Transmission Fluid Automatic: Dexron II or equivalent (check manual for exact spec). Brake Fluid Type: DOT 3 or DOT 4. Known Issues Apex Seals: Wear of apex seals is a common concern for all rotary engines, affecting compression and performance over time. Proper lubrication and avoiding over-revving are critical. Carburetor Tuning: Carburetors can require periodic adjustment and cleaning due to age and fuel variability. Cooling System Maintenance: Regular flushing and inspection of the cooling system is vital for rotary engine longevity. Electrical Connections: Corrosion and degradation of electrical connections are common in vehicles of this age. 📚 Vehicle History Brand Heritage Brand Focus: Mazda's...