🏷️ Basic Information Identification Make: Mazda Model: RX-2 Year: 1978 Codes Chassis Code: S124A (Coupe/Sedan), S132A (Coupe/Sedan) Engine Code: 12A 👋 Introduction Market Position Target Audience: RX-2 owners, DIY mechanics, automotive enthusiasts, repair shops. Value Proposition: Comprehensive, accurate, factory-level repair information for cost-effective maintenance and repair. Competitive Analysis Differentiation: Directly sourced factory manual, offering specific details beyond generic guides. Key Features Digital Convenience: Single, easy-to-use PDF; print only needed pages; no greasy pages. Diagnostic Tools: Includes wiring schematics and diagnostic procedures essential for Wankel engine troubleshooting. 📋 Manual Details Coverage Areas Primary Coverage: 1978 Mazda RX-2 (All Models & All Repairs A-Z) Additional Coverage: Technician level repair, maintenance, diagnosis, and service. Page Count Estimated Page Count: Varies (Digital PDF, printable sections) Manual Type Type: Factory Service and Repair Manual Language Language: English Format Digital Format: PDF Accessibility: Compatible with Windows and Mac Software Requirements: Adobe PDF Reader, Winzip 📖 Manual Coverage Systems Covered Engine Mechanical: Complete engine overhaul, rebuild procedures, component testing, lubrication, seals, gaskets. Engine Control: Ignition system, starting and charging systems, fuel system operation and diagnosis. Emission Control: Emission control systems, diagnosis and adjustment procedures. Cooling System: Radiator, thermostat, water pump, hoses, coolant specifications. Fuel Service: Fuel tank, fuel pump, fuel lines, carburetor specifications and service. Transmission: Manual transmission (gearbox) overhaul, clutch service, operation; Automatic transmission service, fluid specifications. Drivetrain: Drive shafts, universal joints, differential, axle service and specifications. Suspension: Front and rear suspension components, alignment specifications, shock absorbers. Brakes: Brake system diagnosis, hydraulic components, disc/drum brake service, parking brake. Steering: Steering column, steering gear, power steering system diagnosis and repair. Electrical: Complete wiring schematics, lighting systems, instrument cluster, accessories. Body Interior: Doors, windows, seats, interior trim, dashboard, engine hood, exterior panels. HVAC: Air conditioning system diagnosis and service, heater core. Restraint Systems: Seat belts, supplemental restraint systems (if applicable to specific trims/models). Procedures Included Maintenance Procedures: Scheduled maintenance, fluid changes, filter replacements, tune-ups. Diagnostic Procedures: Troubleshooting guides, symptom-based diagnostics, electrical fault finding. Repair Procedures: Detailed step-by-step instructions for component removal, installation, and repair. Rebuild Procedures: Complete engine and transmission rebuild instructions. Adjustment Procedures: Carburetor adjustments, ignition timing, brake adjustments. Wiring Schematics: Comprehensive electrical diagrams for all vehicle systems. Technical Depth Depth: Factory-level, comprehensive coverage for all repairs and maintenance. Detail Level: Step-by-step instructions, detailed diagrams, illustrations, and specifications. Uniqueness: Specific to the 1978 Mazda RX-2, not generic information. 📊 Manual Specifications File Format File Type: PDF Searchability: Likely searchable text within PDF. Print Quality Printability: All pages printable. Image Enhancement: Images can be blown up and printed enlarged. Binding Type Binding: N/A (Digital PDF) Paper Type Paper: N/A (Digital PDF) ⚙️ Engine Specifications Primary Engine Engine Type: Rotary (Wankel) Engine Code: 12A Displacement: 2x 300cc (rotor displacement, often referred to as 1.2L or 1146cc actual displacement) Performance Horsepower: Approx. 125-130 hp (depending on specific market and tune) Torque: Approx. 130-135 lb-ft Fuel System Fuel Delivery: Two-barrel carburetor (e.g., Hitachi, Nikki) Fuel Type: Unleaded gasoline (87 octane or higher recommended, check manual for specific octane rating) Lubrication Oil Type: Wankel specific engine oil (e.g., SAE 10W-30 or 10W-40, refer to manual for exact spec). Oil Capacity: Approx. 4.5-5.0 quarts (including oil cooler if equipped). Ignition Ignition System: Distributor-based ignition system with single ignition coil or dual coil system. Spark Plugs: Specific long-reach spark plugs for rotary engines (e.g., NGK). 🔧 Transmission Standard Transmission Type Standard: 4-speed manual transmission Optional Transmission Type Optional: 3-speed automatic transmission Features Clutch Type: Dry single plate clutch Transmission Fluid Manual: GL-4 or GL-5 gear oil (e.g., SAE 75W-90 or 80W-90, consult manual for precise specification). Transmission Fluid Automatic: Dexron II or equivalent automatic transmission fluid (ATF). 📐 Dimensions Exterior Body Styles: 2-door Coupe, 4-door Sedan Wheelbase: Approx. 98.0 inches (2489 mm) Length: Approx. 168.7 inches (4285 mm) Width: Approx. 64.8 inches (1646 mm) Height: Approx. 51.8 inches (1316 mm) for Coupe, 53.5 inches (1359 mm) for Sedan Weights Curb Weight: Approx. 2300-2500 lbs (1043-1134 kg) depending on body style and equipment. Gross Vehicle Weight Rating: Consult manual for specific GVWR. 🛡️ Safety Features Ratings Safety Ratings Era: Safety standards of the late 1970s. Active Features Braking System: Front disc brakes, rear drum brakes. Steering Features: Recirculating ball steering mechanism, optional power steering. Passive Features Seatbelts: Lap and shoulder belts (front), lap belts (rear). Body Construction: Unitized body construction with energy-absorbing crumple zones. 💡 Technology Features Infotainment Audio System: Factory AM/FM radio, potentially with an 8-track player or cassette player in later models/options. Manual covers audio system components. Driver Assistance Driver Assistance: None in the modern sense; basic safety features inherent to the vehicle design. 🔧 Maintenance Service Intervals Oil Change Interval: Typically every 3,000 miles or 3 months, but consult manual for exact recommendation. Tune Up Interval: Check manual; typically involves spark plug inspection/replacement and carburetor adjustment. Timing Belt Chain: N/A (Rotary engines...