🏷️ Basic Information Identification Make: Mazda Model: RX-7 Year: 1991 Generation: 2nd Generation (FC) Codes Chassis Code: FC3S 👋 Introduction Market Position Positioning: The 1991 Mazda RX-7 (FC) represented the pinnacle of affordable Japanese sports car performance in its era, competing with cars like the Nissan 300ZX (Z32) and Toyota Supra (Mk3). Competitive Analysis Competition: Distinguished itself with its unique rotary engine technology, offering a compact, high-revving powerplant with a distinct character and sound, unlike the inline-six and V6 engines of its primary competitors. Key Features Features: Pop-up headlights, sophisticated independent suspension, powerful rotary engine, rear-wheel-drive layout, and a focus on driver engagement and handling. 📋 Manual Details Coverage Areas Coverage: All models and all repairs A-Z for the 1991 Mazda RX-7 (2nd Gen) Page Count Pages: Over 1,000 pages (estimated typical for dealership service manuals of this era) Manual Type Type: Factory Service Manual / Workshop Manual Language Language: English Format Format: Print (typically spiral-bound or case-bound) 📖 Manual Coverage Systems Covered Engine: Rotary engine (13B), lubrication, cooling, fuel, ignition, emissions, starting, charging Transmission: Manual (Type-R), Automatic (4-speed), clutch, drivetrain, driveshafts, differentials Brakes: Front ventilated discs, rear discs, ABS system (if equipped), hydraulic system, parking brake Suspension: Front McPherson struts, rear independent multi-link, steering system, power steering Electrical: Wiring diagrams, battery, alternator, starter, lighting, instrumentation, body electrical, ECU, sensors Body: Exterior panels, interior trim, doors, windows, seats, HVAC system, body structural repairs Procedures Included Maintenance: Scheduled maintenance, oil changes, filter replacements, spark plug replacement (rotary specific), coolant flushes, belt inspections/replacement Repair: Engine rebuild (apex seals, rotor housing inspection), transmission overhaul, brake caliper rebuild, suspension component replacement, electrical component diagnosis and repair, body panel replacement Troubleshooting: Diagnostic procedures for engine performance issues, electrical gremlins, braking system faults, and drivetrain problems using specific Mazda diagnostic charts and flowcharts. Special Tools: Identification and usage of required Mazda special tools for specific repair procedures. Technical Depth Depth: Comprehensive, from basic fluid checks to complete engine and transmission teardowns and rebuilds, including torque specifications, clearances, and diagnostic fault codes. 📊 Manual Specifications File Format Format: Printed (typically on high-quality paper suitable for workshop environments) Print Quality Quality: High-resolution diagrams, clear text, and professional layout typical of factory publications. Binding Type Binding: Likely spiral-bound or case-bound for durability and ease of use in a workshop setting. Paper Type Paper: Durable, possibly coated paper to withstand workshop conditions and repeated use. ⚙️ Engine Specifications Primary Engine Engine Type: Naturally Aspirated Rotary (Wankel) Engine Code: 13B Displacement: 1.3 Liters (654cc x 2 rotor faces) Configuration: Two-rotor, naturally aspirated Rotor Design: Reuleaux triangle rotor within an epitrochoid housing Rotary Specifics: Requires specific oil metering for lubrication of apex and side seals. Performance Horsepower Hp: 160 HP @ 6,500 RPM (approximate) Torque Lb Ft: 150 LB-FT @ 4,000 RPM (approximate) Fuel System Fuel Delivery: Electronic Fuel Injection (EFI) Ignition System: Distributorless Ignition System (DIS) with twin ignition coils per rotor (typically) for enhanced combustion. 🔧 Transmission Standard Transmission Type: 5-speed Manual Optional Transmission Type: 4-speed Automatic Features Drivetrain: Rear-Wheel Drive (RWD) 📐 Dimensions Exterior Length: 4370 mm (172.0 in) Width: 1750 mm (68.9 in) Height: 1295 mm (51.0 in) Wheelbase: 2500 mm (98.4 in) Weights Curb Weight: 1330 kg (2932 lbs) for Turbocharged models (approximate) 🛡️ Safety Features Ratings Federal Crash Tests: Information not readily available for specific year/model in standardized formats like modern NHTSA ratings. Focus was on passive safety for the era. Active Features ABS: Anti-lock Braking System (ABS) was an available option on higher trim levels. Passive Features Seatbelts: Three-point seatbelts, potentially with pretensioners depending on market and trim. Airbags: Driver's side airbag was a late addition or optional feature for this model year in some markets. Chassis Design: Unibody construction with crumple zones designed for the era. 💡 Technology Features Infotainment Audio System: Factory AM/FM stereo cassette player with optional CD player, typically 4-6 speakers. Climate Control: Manual or automatic climate control systems with air conditioning. Driver Assistance Cruise Control: Standard on most models, providing highway driving convenience. ABS: As mentioned in safety, ABS was available. Connectivity Connectivity: Limited by 1991 standards; primarily focused on the in-car audio experience. 🔧 Maintenance Service Intervals Oil Change: Every 3,000-5,000 miles or 3-6 months, depending on driving conditions. Use of a quality synthetic oil is highly recommended for rotary engines. Spark Plugs: Replace at recommended intervals (refer to manual for exact mileage), as rotary plugs are critical for proper combustion. Coolant Flush: Typically every 2 years or 30,000 miles. Belt Inspection: Regular inspection of accessory belts and timing belt (if applicable for specific engine components) for wear and tension. Fluid Specifications Engine Oil: Refer to manual for specific API service classification and viscosity grade (e.g., 10W-30, 10W-40). Synthetic oils are preferred for rotary engines. Coolant: Mazda-recommended antifreeze/coolant (typically ethylene glycol-based) with a 50/50 mix with distilled water. Brake...