🏷️ Basic Information Identification Make: Mazda Model: RX-2 Model Code: S102A (Coupe/Sedan) Generation Generation Designation: First Generation Codes Chassis Codes: S102A Engine Codes: 10A 👋 Introduction Market Position Market Segment: Compact sports sedan/coupe, targeting a more performance-oriented buyer than typical mainstream sedans of the era. Unique Selling Proposition: Wankel rotary engine offering smooth power delivery and a distinctive engine note, coupled with Mazda's characteristic sporty handling. Competitive Analysis Key Competitors: Toyota Corolla Levin/Sprinter Trueno, Datsun Sunny/1200, Honda Civic (later in the period), European compact sports cars. Key Features Vehicle Rotary Engine Advantage: Compact size, fewer moving parts than piston engines, high power-to-weight ratio, smooth operation. Styling: Sleek, sporty coupe and sedan designs, often praised for their European-influenced aesthetics. Key Features Manual Manual Value Proposition: Empowers owners to maintain and repair their classic rotary Mazda, preserving its unique character and value. 📋 Manual Details Coverage Areas Years Covered: 1970-1978 Body Styles Covered: Coupe, Sedan Regions Covered: Global (primarily for markets where RX-2 was sold) Page Count Estimated Page Count: Likely extensive, typical service manuals for this era exceed 500 pages. Manual Type Manual Type: Comprehensive Service and Repair Manual Language Language: English (assuming based on product description context) Format Format: Downloadable Digital Format (likely PDF) 📖 Manual Coverage Systems Covered Engine Mechanical: Rotary engine (10A) operation, disassembly, assembly, troubleshooting, component specifications, cooling system, lubrication system. Fuel System: Carburetor(s) (e.g., Hitachi), fuel pump, fuel lines, fuel tank, emission control systems. Ignition System: Distributor, ignition coils, spark plugs, timing specifications, electronic ignition components (if applicable to later models). Transmission Manual: Manual gearbox (e.g., 4-speed or 5-speed), clutch operation, disassembly, assembly, fluid specifications. Transmission Automatic: Optional automatic transmission (if available), operation, service procedures, fluid specifications. Drivetrain: Rear-wheel drive system, driveshaft, differential, axle shafts, wheel bearings. Suspension: Front suspension (e.g., independent strut), rear suspension (e.g., leaf springs or live axle), shock absorbers, springs, bushings, alignment specifications. Steering: Steering column, steering gear (e.g., recirculating ball), tie rods, power steering system (if equipped), lubrication. Brakes Front: Disc brakes (common for this era), brake calipers, pads, rotors, brake lines, master cylinder. Brakes Rear: Drum brakes, brake shoes, drums, wheel cylinders, brake lines, master cylinder. Electrical System Charging: Alternator, voltage regulator, battery, wiring diagrams for charging circuit. Electrical System Starting: Starter motor, starter solenoid, ignition switch, wiring diagrams for starting circuit. Lighting System: Headlights, taillights, brake lights, turn signals, interior lights, wiring diagrams. Instrumentation: Dashboard instruments, gauges, warning lights, speedometer, tachometer, wiring. Body Exterior: Body panel removal/installation, doors, hood, trunk lid, bumpers, glass, seals, trim. Body Interior: Seat removal/installation, dashboard removal, interior trim panels, carpeting, headliner. HVAC: Heating system, ventilation, defroster, air conditioning (if equipped), blower motor, controls. Emission Controls: PCV system, exhaust gas recirculation (EGR), air injection system (if applicable), troubleshooting emission-related issues. Procedures Included Routine Maintenance: Oil changes, filter replacements, spark plug checks, fluid level checks and top-offs, lubrication points. Major Engine Repairs: Engine overhaul, apex seal replacement, rotor housing machining, porting inspection. Transmission Overhaul: Disassembly, inspection, repair, and reassembly of manual and automatic transmissions. Brake System Service: Brake pad/shoe replacement, rotor/drum resurfacing or replacement, brake line bleeding, master cylinder overhaul. Suspension Component Replacement: Shock absorber, strut, ball joint, tie rod end, control arm bushing replacement. Steering System Repair: Steering gear adjustment and repair, power steering pump and hose replacement. Electrical Troubleshooting: Diagnosis and repair of common electrical faults using wiring diagrams. Body Panel Alignment: Adjustment of doors, hood, and trunk for proper fit and sealing. Interior Trim Restoration: Removal and reinstallation of interior components for cleaning or repair. Carburetor Adjustment And Rebuild: Detailed procedures for cleaning, rebuilding, and adjusting the Hitachi carburetors used on the 10A engine. Rotary Engine Specific Procedures: Apex seal lubrication, side seal checks, rotor housing lapping (if applicable), intake/exhaust port timing checks. Technical Depth Depth Of Information: Comprehensive, suitable for professional mechanics and experienced DIY enthusiasts. Diagnostic Procedures: Step-by-step troubleshooting guides for various systems, including common symptoms and their causes. Torque Specifications: Detailed torque values for critical fasteners throughout the vehicle. Clearances And Tolerances: Precise measurements for engine components, bearings, and other critical areas. Wiring Diagrams: Complete and detailed wiring diagrams for all electrical systems, color-coded for clarity. Special Tools: Identification and usage instructions for any specialized tools required for specific repairs. 📊 Manual Specifications File Format File Format: PDF PDF Quality: High-resolution scans suitable for digital viewing and printing. Searchable Text: Likely includes OCR (Optical Character Recognition) for text searchability. Print Quality Print Suitability: Printable pages for offline use in a workshop environment. Binding Type Binding Type: N/A (Digital Download) Paper Type Paper Type: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Type: Wankel Rotary Engine Engine Code: 10A Displacement Cc: 491 cc per rotor (total 982 cc equivalent displacement) Displacement Ci: 60.0 cu in per rotor (total 120.0 cu in equivalent displacement) Rotor Configuration: Two-rotor Performance Horsepower Hp Ps:...
Front suspension (e.g., independent strut), rear suspension (e.g., leaf springs or live axle), shock absorbers, springs, bushings, alignment specifications.
Steering:
Steering column, steering gear (e.g., recirculating ball), tie rods, power steering system (if equipped), lubrication.
Brakes Front:
Disc brakes (common for this era), brake calipers, pads, rotors, brake lines, master cylinder.
Ethylene glycol-based antifreeze mixed with water (50/50 ratio).
Known Issues
Apex Seal Wear:
Premature wear or failure of apex seals can lead to loss of compression, rough running, and smoking. Proper maintenance and engine warm-up are crucial.
Carburetor Issues:
Carburetors can be prone to clogging and require regular cleaning and adjustment, especially with fuel quality variations over time.
Rotary Oil Consumption:
Rotary engines inherently consume some oil for lubrication of apex seals; excessive consumption can indicate seal wear.
Thermal Issues:
Rotary engines can be sensitive to overheating. Ensuring the cooling system is in perfect condition is vital.
Electrical Gremlins:
As with many cars of this era, age-related degradation of wiring and components can lead to intermittent electrical issues.
📚 Vehicle History
Brand Heritage
Mazda Rotary Pioneering:
Mazda's commitment to the Wankel rotary engine, starting with the Cosmo Sport and continuing with models like the RX-2, RX-3, RX-4, and RX-7.
Model Evolution
Introduction Year:
1970
Facelifts And Updates:
Minor cosmetic and feature updates throughout its production run, with some grille and trim changes.
Production
Production Years:
1970-1978
Manufacturing Location:
Japan
Sales Performance Context:
While not a global blockbuster, the RX-2 was a significant model in establishing Mazda's performance credentials and showcasing the rotary engine's potential in the compact car segment.
🏆 Awards & Recognition
Recognitions
Rotary Engine Recognition:
The Wankel rotary engine itself has received numerous accolades over its development and production for its innovative design and performance characteristics.
Ratings
Consumer Reports Era:
Reviews from the period often highlighted the RX-2's spirited performance and unique engine, while also noting the learning curve for maintenance and potential for higher running costs compared to piston-engined rivals.
Certifications
Emission Certifications:
Met the emission standards of the respective markets for the years of production, often utilizing early forms of emission control technology.
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