Market Position:
The Mazda RX-7 (FD generation) is an iconic Japanese sports car renowned for its lightweight chassis, advanced rotary engine, and exceptional handling. It competed against vehicles like the Nissan 300ZX (Z32), Toyota Supra (Mk IV), and Mitsubishi 3000GT.
Key Differentiators:
The RX-7's primary differentiator was its twin-rotor, sequential turbocharged 13B-REW engine, offering a unique power delivery and high-revving character not found in its piston-engine competitors. Its sophisticated suspension and balanced weight distribution contributed to its legendary handling.
Performance Focus:
The 1993 model year marked the introduction of the third generation (FD) RX-7, featuring a sleek, aerodynamic design and significant performance enhancements over its predecessor.
Target Audience:
This manual is invaluable for owners of the 1993 Mazda RX-7, automotive enthusiasts, DIY mechanics, and professional repair shops specializing in rotary-powered vehicles.
Engine Systems:
Rotary engine operation, maintenance, troubleshooting, repair (including apex seals, rotor housings, eccentric shafts), lubrication, cooling, fuel delivery, emission control systems (including secondary air injection, air pump, EGR).
Drivetrain Systems:
Clutch operation and repair, manual transmission overhaul and repair (including gearsets, synchronizers, shift forks, bearings), front and rear axle assembly, differential.
Chassis Systems:
Steering system diagnosis and repair (including power steering pump, rack and pinion), braking system components and service (including ABS, brake calipers, rotors, hydraulic lines), suspension (front and rear, including control arms, springs, dampers, bushings), wheel and tire specifications.
Electrical Systems:
Engine electrical system (ignition, starting, charging, sensors, ECU), body electrical system (lighting, wipers, power windows, door locks, instrument cluster, audio system), HVAC system components and service.
Body And Interior:
Body panel removal and installation, interior trim components, seat adjustment and removal, safety belt systems.
Maintenance Procedures:
Routine maintenance checks, fluid level checks and top-offs, filter replacements (oil, fuel, air), spark plug replacement (rotary specific), belt inspection and adjustment, ignition timing checks.
Diagnostic Procedures:
Troubleshooting guides for common drivability issues, electrical faults, braking problems, HVAC malfunctions. Diagnostic trouble codes (DTCs) and their meanings for the 1993 model year.
Repair Procedures:
Step-by-step instructions for component removal, disassembly, inspection, repair, and reassembly for all major systems. Includes torque specifications for critical fasteners.
Special Procedures:
Specific procedures related to the rotary engine, such as apex seal replacement, rebuilds, and engine management system diagnostics. Use of specialized tools for rotary engines.
Depth:
Comprehensive, covering everything from basic scheduled maintenance and fluid changes to in-depth engine rebuilds, transmission overhauls, and complex electrical system diagnostics. Suitable for both DIY enthusiasts and professional technicians.
Engine Type:
Rotary (Wankel)
Engine Configuration:
Two-Rotor, Twin-Turbocharged (Sequential)
Displacement:
1.3 Liters (654cc x 2)
Aspirated Induction:
Twin-sequential turbochargers (CT2 turbochargers)
Horsepower:
255 hp @ 6500 rpm (JDM/Euro specification for 1993)
Torque:
217 lb-ft @ 5000 rpm (JDM/Euro specification for 1993)
Fuel Injection:
Multi-point fuel injection (MPI)
Fuel Type:
Unleaded gasoline (91 octane or higher recommended)
Oil Type Recommendation:
API SG or SH, SAE 10W-30 or 10W-40 (check manual for specific viscosity based on temperature)
Oil Capacity:
Approximately 5.3 US quarts (5.0 Liters) with filter change
Coolant Type:
Ethylene glycol-based antifreeze with corrosion inhibitors (typically a 50/50 mix with distilled water)
Coolant Capacity:
Approximately 8.5 US quarts (8.0 Liters)
NHTSA Ratings:
Unavailable for this specific model year and region; safety standards varied globally.
ABS:
Standard Anti-lock Braking System (ABS)
Traction Control:
Optional or standard on certain trims (TCS)
Airbags:
Driver's side airbag standard
Seatbelts:
Three-point inertia-reel seatbelts
Body Structure:
Designed with a rigid chassis and crumple zones for occupant protection.
Audio System:
Factory-installed AM/FM stereo with cassette player. Some models may have optional CD players. Speaker configurations varied by trim level.
Instrument Cluster:
Features a comprehensive dashboard with a prominent tachometer, speedometer, fuel gauge, coolant temperature gauge, and warning lights. Some models included boost gauges.
Cruise Control:
Available on most models.
Connectivity Options:
Limited by 1993 standards; primarily focused on physical controls and basic audio input.
Oil Change:
Every 3,000 - 5,000 miles (5,000 - 8,000 km) or 6 months, whichever comes first (depending on driving conditions and oil used). Consult manual for specific recommendations.
Spark Plug Replacement:
Refer to manual for specific rotary spark plug service intervals, typically longer than piston engines but require specific inspection.
Coolant Flush:
Every 2-3 years or 30,000-45,000 miles
Brake Fluid:
DOT 3 or DOT 4 brake fluid (check manual for specific type)
Power Steering Fluid:
Dexron-II or equivalent ATF (check manual for exact specification)
Rotary Engine Apex Seals:
Wear and failure of apex seals is a common concern with high-mileage or poorly maintained rotary engines. Requires engine rebuild if failure occurs.
Sequential Turbo System:
Potential issues with the solenoids, vacuum lines, and actuators controlling the sequential turbochargers, leading to loss of boost or incorrect boost application.
Oil Consumption:
Rotary engines inherently consume a small amount of oil as part of their lubrication system. However, excessive consumption can indicate seal wear.
Emissions System Components:
Age-related degradation of vacuum hoses, solenoids, and air pump components in the emissions system can lead to drivability issues and failed emissions tests.
Cooling System Reliability:
Overheating can be a significant issue if the cooling system is not meticulously maintained. Ensure radiators, fans, and hoses are in good condition.
Rotary Legacy:
Mazda has a long and storied history with the rotary engine, dating back to the Cosmo Sport in the late 1960s. The RX-7 represents the pinnacle of their rotary sports car development.
Generations:
The 1993 RX-7 is the third generation (FD), a complete redesign from the previous FC model. It featured a more exotic and refined design, a more powerful engine, and advanced technology.
Production Period:
The FD RX-7 was produced from 1992 to 2002.
Manufacturing Location:
Hofu, Yamaguchi Prefecture, Japan