The 1998 Mazda RX-7 FD3S stands as a celebrated icon in automotive history, representing the zenith of Mazda's rotary engine sports car engineering. Renowned for its distinctive twin-turbocharged 13B-REW rotary engine, lightweight chassis, and near-perfect 50/50 weight distribution, the FD RX-7 delivers an unparalleled driving experience. Its sophisticated multi-link suspension and aerodynamic design contribute to exceptional handling and performance, making it a highly sought-after vehicle for enthusiasts and collectors alike. This model continues to be admired for its unique blend of advanced technology for its era and enduring aesthetic appeal. This comprehensive factory service manual provides in-depth information for the complete repair, service, and maintenance of the 1998 Mazda RX-7 (FD3S chassis). It covers all major systems, including the powertrain, drivetrain, chassis, suspension, brakes, and electrical systems, detailing specific procedures for engine repair, turbocharger service, transmission overhaul, and much more. With extensive diagnostic information, technical specifications, and safety guidelines, this manual is an indispensable resource for owners, mechanics, and technicians aiming to maintain the optimal performance and longevity of this remarkable sports car. 🏷️ Basic Information Identification Make: Mazda Model: RX-7 Model Code: FD3S Year: 1998 Codes Chassis Code: FD3S 👋 Introduction Market Position Positioning: The 1998 Mazda RX-7 FD3S represented the pinnacle of Mazda's rotary engine sports car development, a highly sought-after JDM icon known for its unique engine, exceptional handling, and distinctive styling. This manual is essential for preserving and maintaining this celebrated performance vehicle. Competitive Analysis Competitors: Competed against iconic sports cars of its era such as the Nissan 300ZX (Z32), Toyota Supra (JZA80), and Mitsubishi 3000GT (Z16A). The RX-7 stood out with its naturally aspirated rotary engine, lightweight chassis, and focus on driver engagement. Key Features Vehicle Highlights: Lightweight chassis, near 50/50 weight distribution, advanced aerodynamic design, twin-sequential turbocharging (13B-REW), sophisticated multi-link suspension. 📋 Manual Details Coverage Areas Primary Coverage: Complete repair, service, and maintenance procedures for the 1998 Mazda RX-7 (FD3S chassis). Page Count Estimated Pages: Approximately 2000+ pages (typical for a comprehensive service manual of this era). Manual Type Type: Factory Service Manual (FSM) / Repair Manual Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Powertrain: 13B-REW Rotary Engine (Twin-Turbocharged), Engine Management System (ECU), Fuel System, Ignition System, Exhaust System. Drivetrain: Transmission (R154 manual transmission, potentially automatic options), Clutch System, Driveshaft, Differential, Axles. Chassis And Suspension: Front Suspension (Double Wishbone), Rear Suspension (Multi-link), Steering System, Power Steering, Bushings, Bearings. Brakes: Front and Rear Disc Brakes, ABS System, Brake Lines, Master Cylinder, Calipers. Electrical And Electronics: Wiring Diagrams, Battery, Alternator, Starter Motor, Lighting System, Fuses, Relays, ECU Pinouts, Sensor Diagnostics, Immobilizer System. Body And Interior: Body Panel Removal and Installation, Doors, Hood, Trunk, Interior Trim, Seats, HVAC System, Body Sealing. Procedures Included Engine Repair: Engine disassembly, inspection, reassembly, apex seal replacement, rotor housing machining, oil seal replacement, peripheral seal replacement. Turbocharger Service: Turbocharger inspection, rebuild, replacement, wastegate adjustment, intercooler maintenance. Transmission Overhaul: Transmission removal, disassembly, component inspection, reassembly, shift linkage adjustment. Suspension And Steering Alignment: Wheel alignment specifications, camber, caster, toe adjustments, suspension component replacement. Brake System Service: Brake pad and rotor replacement, caliper rebuilding, bleeding the brake system, ABS system troubleshooting. Electrical Troubleshooting: Diagnostic procedures for electrical faults, wiring harness repair, component testing, using diagnostic scan tools. Fuel System Diagnostics: Fuel injector testing, fuel pump pressure checks, fuel filter replacement, fuel delivery system troubleshooting. Cooling System Maintenance: Radiator flushing, thermostat replacement, coolant hose inspection, water pump replacement. Technical Depth Depth: Comprehensive, covering detailed diagnostic procedures, component-level repair, torque specifications, and factory tolerances. Suitable for professional technicians and advanced DIY enthusiasts. 📊 Manual Specifications File Format PDF Quality: High-resolution, text-searchable PDF for easy navigation and information retrieval. Print Quality Printability: Designed for clear printing, allowing users to create physical copies of specific sections or the entire manual. Binding Type Binding Type: N/A (PDF Digital Download) Paper Type Paper Type: N/A (PDF Digital Download) ⚙️ Engine Specifications Primary Engine Engine Name: 13B-REW Engine Type: Rotary (Wankel) Twin-Turbocharged Displacement: 1.3 Liters (654cc x 2 rotors) Rotor Housing Material: Enamel-coated aluminum alloy Apex Seals: Often made of carbon-based composite or ceramic for durability and performance (specific material can vary by production revision). Ignition System: Distributorless Ignition System (DIS) with trailing and leading spark plugs per rotor. Performance Horsepower: 255 hp @ 6500 rpm (for 1998 models in most markets). Torque: 217 lb-ft @ 5000 rpm (for 1998 models). Redline: 8000 rpm Turbocharging System: Sequential Twin-Turbochargers (Smaller turbo for low-end response, larger turbo for high-end power). Fuel System Fuel Injection: Electronic Fuel Injection (EFI). Fuel Type Required: Premium Unleaded Gasoline (91 Octane or higher). Fuel Pump Type: In-tank electric fuel pump. Fuel Injectors: High-impedance, top-feed injectors. 🔧 Transmission Standard Type: Mazda R154 5-speed Manual Transmission. Optional Type: Optional 4-speed Automatic Transmission (less common). Features Clutch Type: Hydraulically actuated, single-plate dry clutch. Gear Ratios: Specific gear...