The Mazda R100, also known as the Mazda Familia Rotary Coupe, is a distinctive compact sports coupe produced from 1968 to 1973. This pioneering vehicle showcased Mazda's innovative 2-rotor Wankel rotary engine, the 10A, offering a unique blend of smooth power delivery and nimble handling. With its clean coupe styling and sporty proportions, the R100 carved out a niche in the automotive market, competing with other performance-oriented vehicles of its era. Its engineering quality and the revolutionary rotary powertrain have cemented its status as a significant and collectible piece of automotive history. This workshop service and repair manual provides comprehensive guidance for the Mazda R100, covering model years 1968 through 1973. It details essential maintenance procedures, diagnostic troubleshooting for common issues, and in-depth repair instructions for all major vehicle systems, including the rotary engine, transmission, brakes, suspension, and electrical components. The manual also includes crucial technical specifications, torque values, and detailed wiring diagrams. Its purpose is to empower owners, mechanics, and technicians with the knowledge necessary to maintain, repair, and preserve the R100, ensuring its continued operation and historical integrity. 🏷️ Basic Information Identification Make: Mazda Model: R100 (R 100 Coupe) Body Style: Coupe Generation: First Generation (Mazda Familia Rotary Coupe) Codes Chassis Code: Often referred to by its platform derivative, e.g., derived from the Mazda Familia series Engine Code: 10A (Rotary) 👋 Introduction Market Position Positioning: The Mazda R100 was a pioneering compact sports coupe that introduced the rotary engine to a wider audience, competing with small European sports cars and domestic performance coupes. Competitive Analysis Competitors: Datsun 240Z, Toyota Corolla Levin/Sprinter Trueno (early generations), Alfa Romeo Giulia GT, Ford Capri. Key Features Engine Type: Unique 2-rotor (10A) Wankel rotary engine, offering a compact, high-revving, and smooth power delivery. Design: Distinctive coupe styling with clean lines, sporty proportions, and often a characteristic 'bubble' rear window. Driving Experience: Known for its nimble handling, lightweight feel, and the unique sound and acceleration characteristics of the rotary engine. Manual Value Proposition Usefulness: Essential for owners and mechanics maintaining the iconic R100, providing crucial technical data and procedures for preserving this unique vehicle. 📋 Manual Details Coverage Areas Years Covered: 1968, 1969, 1970, 1971, 1972, 1973 Regions Covered: Global (primarily based on North American and Japanese specifications) Page Count Estimated Pages: 300-500 (typical for comprehensive workshop manuals of this era) Manual Type Type: Workshop Service and Repair Manual Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Engine: Rotary Engine (10A), including apex seals, rotor housing, rotor, eccentric shaft, lubrication, cooling, and combustion. Lubricating System: Oil pump, oil filter, oil passages, oil pressure testing, and oil type specifications. Cooling System: Radiator, water pump, thermostat, coolant hoses, coolant type and capacity, and system pressure testing. Fuel System: Carburetor (likely Hitachi or Mikuni side-draft), fuel pump, fuel filter, fuel lines, and emissions control components (if applicable). Electrical System: Ignition system (distributor, coil, spark plugs), starting system (starter motor, solenoid), charging system (alternator, regulator), lighting, instrumentation, wiring diagrams, and component testing. Clutch: Clutch disc, pressure plate, release bearing, clutch pedal adjustment, hydraulic system (if applicable), and removal/installation. Transmission: Manual transmission (likely 4-speed or 5-speed), gear lubrication, internal components, shift linkage, and removal/installation. Propeller Shaft: Driveshaft, universal joints, balancing, and inspection. Rear Axle: Differential, axle shafts, bearings, and fluid specifications. Suspension: Front and rear suspension components (springs, shock absorbers, control arms, ball joints, bushings), alignment specifications, and replacement procedures. Steering: Steering box, tie rods, steering column, linkage, and adjustment procedures. Brakes: Front and rear brake systems (drum or disc), master cylinder, wheel cylinders, brake lines, pads/shoes, hydraulic fluid specifications, bleeding procedures, and parking brake. Body And Trim: Body panel repair, door mechanisms, window mechanisms, interior trim, and weather stripping. Chassis And Frame: Frame inspection, rust repair, and structural components. Heating And Air Conditioning: Heater core, blower motor, ducting (if factory AC equipped). Emissions Control: Early emissions systems, PCV valve, air injection (if equipped). Procedures Included Maintenance: Routine checks, fluid changes, filter replacements, lubrication points, spark plug replacement, and ignition timing adjustment. Troubleshooting: Diagnostic charts, symptom-based troubleshooting for engine performance, electrical issues, and mechanical failures. Repair: Step-by-step instructions for component removal, disassembly, inspection, repair, reassembly, and installation. Overhaul: Detailed instructions for complete engine, transmission, and differential rebuilds. Adjustment: Carburetor tuning, ignition timing, clutch pedal, brakes, and suspension alignment. Wiring Diagrams: Comprehensive electrical schematics for all vehicle systems. Torques Specifications: Torque values for critical fasteners across all vehicle systems. Technical Depth Depth: Comprehensive and detailed, suitable for professional mechanics and experienced DIY enthusiasts. Diagnostics: Advanced diagnostic procedures, including electrical testing, compression testing (adapted for rotary), and visual inspections. Rebuild Procedures: Full rebuild procedures for major mechanical components like the rotary engine and transmission. 📊 Manual Specifications File Format Digital Format: PDF Searchable Text: Likely to be searchable if OCR processed, but older scans may be image-based....