🏷️ Basic Information Identification Make: Mazda Model: RX-3 Year: 1975 Product Type: Factory Service Repair Manual Codes Chassis Codes: AP (Sedan), AB (Coupe), AC (Wagon) Engine Codes: 10A (Rotary) 👋 Introduction Market Position Era Context: The RX-3 was Mazda's affordable, sporty compact offering in the mid-1970s, competing with Japanese and American small cars. Niche: Known for its compact size, distinctive styling, and especially its rotary engine, offering a unique driving experience. Competitive Analysis Competitors: Datsun 240Z/260Z (though higher performance/price), Toyota Corolla, Honda Civic, Ford Pinto, Chevrolet Vega. Key Features Rotary Engine: The primary differentiator; smooth operation, high-revving nature, and unique sound. Styling: Sporty coupe and sedan designs, often praised for their clean lines. Handling: Lightweight chassis and good weight distribution contributed to agile handling. Manual Purpose Utility: Essential resource for owners and mechanics to maintain, diagnose, and repair the 1975 Mazda RX-3. 📋 Manual Details Coverage Areas Primary Coverage: Mazda RX-3 1975 Secondary Coverage: All variations of the 1975 Mazda RX-3 model Page Count Estimated Page Count: 700+ Manual Type Type: Factory Service Manual / Workshop Manual Language Language: English Format Format: Digital (likely PDF, often scanned or digitally reproduced) 📖 Manual Coverage Systems Covered Engine Mechanical: Rotary engine (10A) disassembly, assembly, inspection, and repair Engine Fuel System: Carburetor (likely Hitachi/Mikuni), fuel pump, fuel lines, tank inspection and service Engine Ignition System: Distributor, ignition coils, spark plugs, timing adjustment Cooling System: Radiator, water pump, thermostat, hoses, fan Lubrication System: Oil pump, oil filter, oil passages, oil pan Transmission Manual: 4-speed manual gearbox, clutch operation, removal, disassembly, assembly Transmission Automatic: Optional 3-speed automatic gearbox (if applicable to 1975 models), operation and service Drivetrain: Driveshaft, rear axle, differential, wheel bearings Suspension Front: MacPherson strut system, springs, shock absorbers, control arms, ball joints Suspension Rear: Leaf spring suspension, shock absorbers Steering System: Steering gear box, steering column, linkages Braking System: Front disc brakes, rear drum brakes, master cylinder, brake lines, parking brake Electrical System: Wiring diagrams, battery, alternator, starter motor, lighting, gauges, switches Body And Chassis: Body panel removal/installation, door mechanisms, glass, trim HVAC: Heating and ventilation system operation and service Procedures Included Preventive Maintenance: Oil changes, filter replacements, tune-ups, fluid checks Troubleshooting: Diagnostic charts, symptom-to-cause analysis Repair Procedures: Detailed step-by-step instructions for component removal, disassembly, repair, and reassembly Adjustment Procedures: Carburetor adjustments, ignition timing, clutch free play, brake adjustments Installation Procedures: Component installation, accessory fitting Torque Specifications: Crucial torque values for engine, chassis, and drivetrain components Wiring Diagrams: Comprehensive electrical schematics for all vehicle systems Technical Depth Depth: Comprehensive; covers from basic maintenance to complete engine rebuilds and major component overhauls. Diagnostics: Includes diagnostic procedures and specifications for troubleshooting common and complex issues. 📊 Manual Specifications File Format Digital Format: Likely PDF, offering searchability and printability. Print Quality Quality: Variable depending on source scan quality; often clear enough for detailed use. Binding Type Binding: N/A (Digital format) Paper Type Paper: N/A (Digital format) ⚙️ Engine Specifications Primary Engine Engine Type: Wankel Rotary Engine Code: 10A Displacement: 993 cc (combined chamber volume) Rotor Design: Two-rotor design Performance Horsepower Net: Approx. 110 hp @ 6,500 rpm (for US-spec models, exact figures can vary by market) Torque Net: Approx. 118 lb-ft @ 3,500 rpm (for US-spec models, exact figures can vary by market) Redline: Approx. 7,000 rpm Fuel System Carburetor: Single 2-barrel carburetor (e.g., Hitachi HMC 34, or similar depending on market/emission standards) Fuel Type: Unleaded gasoline (91 octane or higher recommended for optimal performance) Oil Injection: Separate oil injection system for apex seal lubrication is standard on rotary engines. Cooling System Cooling Type: Water-cooled Lubrication System Oil Capacity: Approx. 5.3 US quarts (5.0 liters) including filter Oil Specification: API SF/CD or equivalent, SAE 20W-50 or 10W-40 depending on climate. Consult manual for specifics. 🔧 Transmission Standard Type: 4-speed Manual Transaxle Optional Type: 3-speed Automatic Transaxle (may be market-specific) Features Drive Layout: Rear-wheel drive (RWD) with integrated transmission and differential. Fluid Capacity Manual Transmission Fluid Capacity: Approx. 2.5 US quarts (2.3 liters) Automatic Transmission Fluid Capacity: Consult manual (typically around 4-5 quarts, including torque converter) Fluid Specification Manual Transmission Fluid Type: GL-4 Hypoid gear oil, SAE 80W-90 or 75W-90. Consult manual for specifics. Automatic Transmission Fluid Type: Dexron II or equivalent. Consult manual for specifics. 📐 Dimensions Exterior Length: Approx. 160.0 inches (4064 mm) for Coupe, slightly longer for Sedan/Wagon Width: Approx. 63.0 inches (1600 mm) Height: Approx. 52.0 inches (1321 mm) for Coupe, slightly higher for Sedan/Wagon Wheelbase: Approx. 95.7 inches (2431 mm) Weights Curb Weight: Approx. 2,100 - 2,300 lbs (950 - 1040 kg) depending on body style and equipment Wheels Tires Wheel Size: 13-inch or 14-inch steel wheels with hubcaps Tire Size: Typically 175/70SR13 or 185/70SR13. Consult manual for exact fitments. Bolt Pattern: 4x110mm 🛡️ Safety Features Ratings Historical Ratings: Modern safety rating data is not available for vehicles of this era....