🏷️ Basic Information Identification Make: Mazda Model: RX-3 Model Variant: RX3 Product Name: Mazda RX3 RX-3 1970-1978 Service Repair Manual PDF Codes Chassis Codes: S102, S124, S132 (Coupe, Sedan, Rotary Coupe) 👋 Introduction Market Position Target Audience: Do-it-yourself enthusiasts and professional mechanics Competitive Analysis Advantage Over Paper: Lower cost, convenience, instant access, searchability, print-on-demand Key Features Completeness: Complete official full factory service repair manual Cost Effectiveness: Inexpensive way to keep vehicle working properly, saving on mechanic fees Accessibility: Accessible on multiple devices via web browser or downloaded application Data Retention: No expiry dates, permanent access 📋 Manual Details Coverage Areas Model Years Covered: 1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978 Body Styles Covered: All styles (Coupe, Sedan, Rotary Coupe) Page Count Estimated Page Count: Hundreds of pages (estimated 800-1200 pages based on typical factory manuals of the era) Manual Type Type: Factory Service Repair Manual Language Language: English Format Digital Format: PDF 📖 Manual Coverage Systems Covered Engine Service Repair: Complete overhaul, component diagnosis, troubleshooting Transmission Service Repair: Manual and Automatic transmission overhaul, diagnosis Brake System: Hydraulic system, components, troubleshooting, bleeding procedures Electrical System: Wiring diagrams, component testing, circuit diagnosis Suspension: Front and rear suspension components, alignment, troubleshooting Steering: Steering gearbox, linkages, troubleshooting Cooling System: Radiator, water pump, thermostat, hoses, troubleshooting Fuel System: Carburetor(s) (likely Hitachi or Mikuni), fuel pump, lines, troubleshooting Fuel Injection: Applicable models/years with fuel injection systems Emission System: Emission control components, troubleshooting Heater Air Conditioning: HVAC system components, operation, maintenance Chassis Body: Frame, body panels, doors, windows, trim Restraint System: Seat belts, passive restraint systems (if applicable) Interior: Seating, dashboard, trim, instrumentation Differential Drive: Rear axle and differential overhaul, maintenance Axle: Front and rear axle components, maintenance Procedures Included General Maintenance: Scheduled maintenance, fluid changes, filter replacements Troubleshooting: Diagnostic charts, symptom-based problem solving Engine Repair: Complete engine rebuild procedures, component replacement Transmission Repair: Step-by-step overhaul and repair for various transmission types Brake Repair: Brake pad/shoe replacement, caliper/cylinder overhaul, drum turning Wiring Diagrams: Detailed electrical schematics for all systems Suspension Repair: Component replacement (shocks, springs, bushings), alignment procedures Periodic Lubrication: Lubrication points and schedules Steering Repair: Steering box adjustment, tie rod end replacement Cooling System Repair: Thermostat replacement, radiator repair, coolant flush Fuel Injection Repair: Diagnosis and repair of fuel injection systems (if equipped) Fuel System Repair: Carburetor tuning, fuel pump replacement, fuel filter service Emission System Repair: Diagnosis and repair of emission control devices HVAC Repair: Component replacement, system servicing Engine Control System Repair: Diagnosis of ignition and engine management systems Chassis Body Repair: Body panel alignment, rust repair guidance Restraint System Repair: Seatbelt inspection and replacement Interior Repair: Dashboard component replacement, trim repair Differential Drive Repair: Rear axle overhaul, gear backlash adjustment Axle Repair: Front and rear axle service Technical Depth Depth: Complete factory service information, suitable for DIY and professional mechanics Illustrations Photos: Hundreds of photos and illustrations included Disassembly Assembly: Step-by-step instructions based on complete disassembly of components 📊 Manual Specifications File Format Compatibility: Windows (all versions), Mac, Linux (via PDF reader), Mobile Devices (via browser) Software Requirements: Adobe Acrobat Reader (free), WinZip or equivalent (free) Print Quality Printability: Printable (entire manual or select pages) Binding Type Binding Type: N/A (Digital PDF format) Paper Type Paper Type: N/A (Digital PDF format) ⚙️ Engine Specifications Primary Engine Engine Type: Rotary (Wankel) Rotary Displacement: 1.2 L (two rotors, each 573 cc) or 1.3 L (two rotors, each 654 cc) depending on specific model variant and market Engine Code Examples: 12A, 13A (less common, early models) Performance Horsepower Range: Approximately 100-110 hp for early 1.2L, up to 130 hp for later 1.3L performance variants (e.g., GS, GT) Torque Range: Approximately 100-120 lb-ft Fuel System Carburetion: Typically twin Hitachi or Mikuni downdraft carburetors. Some later models or export variants may have had fuel injection. 🔧 Transmission Standard Transmission Type Standard: 4-speed manual Optional Transmission Type Optional: 3-speed automatic (often a Toyo Kogyo/Mazda-Matic) Features Drive Layout: Rear-wheel drive (RWD) 📐 Dimensions Exterior Wheelbase: Approx. 2400-2440 mm (94.5-96.1 inches) depending on body style Length: Approx. 4000-4180 mm (157.5-164.6 inches) depending on body style Weights Curb Weight: Approx. 950-1050 kg (2094-2315 lbs) 🛡️ Safety Features Ratings Safety Ratings Era: Safety standards of the era were less stringent than modern vehicles. Manual will cover basic safety system maintenance. Active Features Braking System: Front disc brakes, rear drum brakes (standard on most models). Passive Features Seat Belts: Lap and shoulder belts (front), lap belts (rear). 💡 Technology Features Infotainment Radio Type: AM/FM radio (often with cassette player in later years). Driver Assistance ABS: Not typically available on early RX-3 models. Connectivity Bluetooth Usb: Not applicable for this era of vehicle. 🔧 Maintenance Service Intervals Oil Change Interval: Typically 3,000-5,000 miles or 3-6 months (refer to manual for precise intervals for specific engine/oil types). Spark Plug Replacement: Variable, but typically checked...