🏷️ Basic Information Identification Make: Mazda Model: RX-4 Model Years Covered: 1975 Codes Chassis Code: LA2 Engine Code Prefix: 12A 👋 Introduction Market Position Historical Context: The Mazda RX-4 represented Mazda's continued commitment to the rotary engine in the mid-1970s, offering a sporty and distinctive alternative in the compact and mid-size segments. Competitive Analysis Key Competitors: Competed against a range of domestic and import sedans, coupes, and hatchbacks, including models from Toyota, Datsun, Honda, Ford, Chevrolet, and Chrysler. Key Features Distinguishing Features: Rotary engine, unique styling, optional advanced features for its time, sporty handling characteristics. Value Proposition Manual Utility: An indispensable resource for owners and mechanics seeking to maintain, diagnose, and repair the 1975 Mazda RX-4, covering all critical systems in detail. 📋 Manual Details Coverage Areas Coverage Scope: Complete official service and repair Model Variants Covered: All models and all engines Page Count Estimated Page Count: Refer to actual manual for exact count Manual Type Manual Type: Service and Repair Manual Language Language: English Format Format: PDF 📖 Manual Coverage Systems Covered Engine: Rotary engine (12A) - principles, disassembly, assembly, troubleshooting, diagnostics Fuel System: Carburetion (e.g., Hitachi, Nikki), fuel pump, fuel lines, emission controls Ignition System: Distributor, ignition coils, spark plugs, timing adjustments Cooling System: Radiator, water pump, thermostat, hoses, coolant specifications Lubrication System: Oil pump, oil passages, oil specifications, oil filter replacement Transmission: Manual and Automatic transmission - overhaul, fluid specifications, torque specifications Drivetrain: Driveshafts, U-joints, differential, axle seals Suspension: Front and rear suspension components, shock absorbers, springs, bushings, alignment specifications Steering: Steering column, steering gear, power steering system (if equipped), components, fluid Brakes: Front and rear disc/drum brakes, brake master cylinder, wheel cylinders, brake lines, fluid specifications, bleeding procedures Electrical System: Battery, alternator, starter motor, wiring diagrams, lighting, fuses, relays, switches Body And Chassis: Body panel removal/installation, interior trim, glass, doors, hinges, latches, body repair principles Heating And Air Conditioning: HVAC system components, refrigerant handling (if applicable), controls, diagnosis Emission Control Systems: PCV system, exhaust gas recirculation (EGR), thermal reactors, catalytic converters (depending on market), emission testing procedures Procedures Included Maintenance Procedures: Oil changes, filter replacements, spark plug service, fluid level checks, belt adjustments, lubrication points Troubleshooting Guides: System-specific diagnostic flowcharts, symptom-based troubleshooting Repair Procedures: Detailed step-by-step instructions for component removal, disassembly, inspection, repair, and reassembly Overhaul Procedures: Complete engine and transmission rebuild instructions Wiring Diagrams: Comprehensive electrical system wiring schematics Diagnostic Procedures: Tools and techniques for diagnosing faults Torque Specifications: Detailed torque values for critical fasteners across all systems Clearances And Tolerances: Specifications for internal engine clearances, bearing tolerances, etc. Technical Depth Depth Of Coverage: Comprehensive, from basic maintenance to complete engine rebuilds and system overhauls Diagnostic Focus: Detailed troubleshooting steps and diagnostic flowcharts for common and uncommon issues Component Level Detail: In-depth coverage of individual component disassembly, inspection, and repair 📊 Manual Specifications File Format File Type: PDF Searchability: Searchable text (typically) Print Quality Image Resolution: High-resolution scans, suitable for printing Binding Type Binding Type Digital: N/A (Digital format) Paper Type Paper Type Digital: N/A (Digital format) ⚙️ Engine Specifications Primary Engine Engine Type: Two-rotor Wankel Rotary Engine Code: 12A Displacement Cc: 1146 cc (nominal) Displacement Ci: 69.9 ci (nominal) Rotor Housing Design: Epitrochoid Performance Horsepower Gross: Approx. 90-100 hp (varies by market and emissions equipment) Torque Gross: Approx. 100-110 lb-ft (varies by market and emissions equipment) Fuel System Carburetor Type: Single or Two-barrel downdraft carburetor (e.g., Hitachi, Nikki) - specific types detailed in manual Fuel Type: Unleaded gasoline (premium recommended) Fuel Pump Type: Mechanical 🔧 Transmission Standard Transmission Type Standard: 4-speed Manual Transmission Optional Transmission Type Optional: 3-speed Automatic Transmission Features Transmission Fluid Type: Dexron II (or equivalent) for automatic; GL-4 gear oil for manual. Specifics in manual. Clutch Type: Dry single plate (manual transmission) 📐 Dimensions Exterior Wheelbase In: Approx. 98.2 inches Length In: Approx. 170.5 inches Width In: Approx. 65.0 inches Height In: Approx. 53.0 inches (coupe) Weights Curb Weight Lbs: Approx. 2400-2600 lbs (varies by body style and equipment) Gross Vehicle Weight Rating Lbs: Refer to VIN plate or manual Trailer Towing Capacity: Not specified by manufacturer for this model. 🛡️ Safety Features Ratings Crash Test Data: No formal NHTSA or IIHS ratings available for this era; consult manual for structural integrity information. Active Features Braking System: Front Disc, Rear Drum standard; potential for 4-wheel disc on some higher trims/markets. Parking Brake: Mechanical, rear wheel Passive Features Seat Belts: Standard lap and shoulder belts (front), lap belts (rear) Steering Column: Collapsible steering column for improved impact absorption. 💡 Technology Features Infotainment Audio System: Factory AM/FM radio, optional AM/FM/8-track player. Manual may cover basic troubleshooting. Driver Assistance ABS: Anti-lock Braking System not available on this model. Cruise Control: Optional on some higher trim levels. Manual will cover its operation and basic troubleshooting. Connectivity Power Windows Locks: Optional on higher trims. Manual covers...