Basic Information Identification Make: Mazda Model: RX-7 Model Generation: FC (Second Generation) Year: 1985 Codes Chassis Code: FC3S (Coupe), FC3C (Convertible - though 1985 was primarily coupe production) Introduction Market Position Segment: Compact Sports Car / Grand Tourer Competitors 1985: Nissan 300ZX (Z31), Toyota MR2, Chevrolet Camaro, Pontiac Firebird, Ford Mustang, Porsche 944 Competitive Analysis Unique Selling Proposition: Wankel rotary engine technology offering high-revving performance and a unique driving experience, balanced chassis, sporty design. Key Features Model Appeal: Performance-oriented, driver-focused, iconic rotary engine, stylish coupe body Manual Details Coverage Areas Coverage Scope: Comprehensive factory service and workshop repair Page Count Approximate Pages: 700-900 Manual Type Type: Factory Service Manual / Workshop Manual Language Language: English Format Format: Digital (PDF, likely scanned factory documents) Manual Coverage Systems Covered Engine: Rotary engine (12A and 13B), lubrication, cooling, fuel injection (early Bosch L-Jetronic variants or similar), ignition, emissions control Transmission: Manual transmission (5-speed), automatic transmission (optional, less common for this year/model), clutch, drivetrain components (driveshaft, differential) Brakes: Front and rear disc brakes, hydraulic system, parking brake, ABS (if equipped on specific trims) Suspension: Front independent suspension (MacPherson struts), rear independent suspension (Watt's linkage or similar multi-link), shock absorbers, springs, control arms, bushings Steering: Power steering system, steering rack, tie rods, steering column Electrical: Wiring diagrams, battery, alternator, starter, lighting systems, gauges, interior electronics, fuses, relays Bodywork: Body panel removal and installation, glass replacement, interior trim, chassis repair, body dimensions, corrosion protection Procedures Included Maintenance: Scheduled maintenance, fluid changes, filter replacements, spark plug (apex seal lubricant) checks, belt adjustments Diagnostics: Troubleshooting charts, symptom-based diagnosis, electrical system testing, engine performance issues Repair: Engine rebuilds (apex seals, rotor housing, oil seals), transmission overhaul, brake caliper replacement, suspension component renewal, electrical component repair Technical Data: Torque specifications, alignment data, clearances, electrical resistance values, diagnostic trouble codes (DTCs) if applicable for the era Technical Depth Depth: Complete factory-level, covering everything from basic tune-ups to complete engine and chassis overhauls. Manual Specifications File Format Format Type: PDF Searchability: Likely text-searchable if OCR'd properly from scanned original Print Quality Quality: Variable, dependent on original scan quality, but typically good for technical diagrams and text. Binding Type Binding: N/A (Digital) Paper Type Paper: N/A (Digital) Engine Specifications Primary Engine Engine Type: Naturally Aspirated Rotary (Wankel) Engine Code: 12A (likely for base models), 13B (optional, including naturally aspirated and potentially early turbo variants depending on specific market/trim for 1985) Displacement Cc: 1146 cc (12A), 1308 cc (13B) Rotor Housing Material: Aluminum alloy with chrome plating Performance Horsepower Ps 12A: Approx. 100-110 PS Horsepower Ps 13B: Approx. 135-146 PS (Naturally Aspirated) Torque Nm 12A: Approx. 130-140 Nm Torque Nm 13B: Approx. 170-180 Nm (Naturally Aspirated) Fuel System Fuel Delivery: Fuel Injection (Bosch L-Jetronic or similar early electronic injection) Fuel Type: Unleaded gasoline Engine Management Ignition System: Electronic Ignition (Distributorless ignition or distributor-based) Emissions Control: Catalytic converter, EGR (Exhaust Gas Recirculation), air injection (likely) Transmission Standard Type: 5-speed Manual Transmission Optional Type: 4-speed Automatic Transmission Features Clutch Type: Hydraulic operated single dry plate Differential: Open differential (Limited Slip Differential (LSD) often optional on higher trims) Dimensions Exterior Length Mm: Approx. 4390 mm Width Mm: Approx. 1690 mm Height Mm: Approx. 1295 mm Wheelbase Mm: Approx. 2430 mm Weights Curb Weight Kg: Approx. 1150-1250 kg (depending on trim and options) Safety Features Ratings Crash Test Data: Limited comparable data available for this era and vehicle type, likely not subjected to modern stringent testing protocols. Active Features Braking System: Front ventilated discs, rear solid discs; ABS optional on some models. Suspension Tuning: Designed for balanced handling and grip. Passive Features Seatbelts: Three-point inertia reel seatbelts Body Structure: Reinforced safety cage, energy-absorbing crumple zones Technology Features Infotainment Audio System: Factory AM/FM/Cassette player, often with equalizer or amplifier options. Driver Assistance Traction Control: Not commonly equipped on 1985 models, advanced stability control was not prevalent. Cruise Control: Available on higher trim levels. Connectivity Connectivity Features: No modern connectivity features (Bluetooth, USB, etc.). Maintenance Service Intervals Oil Change: Every 3,000-5,000 miles (5,000-8,000 km) or 6 months. Rotary engines require specific oil management. Spark Plug Inspection: Check at 15,000 miles (24,000 km), replace as needed. Specific platinum or iridium plugs recommended. Timing Belt Replacement: N/A (Rotary engines do not have timing belts; they use timing chains or gears). Fluid Specifications Engine Oil Type: API SG/SH or higher, viscosity usually 10W-30 or 10W-40. Requires oil with good detergency. Special rotor lubrication system is critical. Coolant Type: Ethylene glycol-based antifreeze, typically a 50/50 mix with distilled water. Transmission Fluid Manual: API GL-4 or GL-5 gear oil, SAE 75W-90 or 80W-90. Brake Fluid Type: DOT 3 or DOT 4 brake fluid. Known Issues Apex Seal Wear: Premature wear of apex seals can lead to loss of compression, rough idling, and poor performance. Regular maintenance and proper oiling are crucial. Thermal Radiator: Overheating issues...