🏷️ Basic Information

Make:

Mazda

Model:

RX-7

Year:

1993

Chassis Code:

FD3S

👋 Introduction

Positioning:

The 1993 Mazda RX-7 (FD3S) represented the pinnacle of rotary sports car engineering, known for its advanced twin-turbocharged engine, sophisticated chassis, and aerodynamic styling. It competed with other performance coupes of its era like the Nissan 300ZX (Z32) and Toyota Supra (JZA70/JZA80).

Engine Technology:

The 13B-REW engine featured sequential twin-turbochargers for improved low-end torque and mid-range power delivery, a significant advancement in rotary engine technology.

Chassis Design:

The FD chassis utilized extensive use of aluminum and a near 50/50 weight distribution for exceptional handling and agility.

Aerodynamics:

Designed with a focus on low drag and optimal downforce, contributing to its high-speed stability and distinctive appearance.

📋 Manual Details

Systems Covered:

Introduction, Maintenance, Engine, Lubrication, Cooling, Fuel Emissions, Engine Electrical, Clutch, Manual Transmission, Automatic Transmission, Propeller Shaft, Axles, Steering, Brakes, Wheels, Suspension, Body, Tools, Technical Data

Estimated Page Count:

Approximately 1500-2000 pages (typical for a comprehensive factory service manual of this era)

Type:

Factory Service Repair Manual

Language:

English

Format:

PDF

📖 Manual Coverage

Engine Mechanical:

Rotary engine disassembly, inspection, assembly, sealing, and timing procedures for the 13B-REW twin-turbocharged engine.

Engine Performance:

Turbocharger system diagnostics and repair, intercooler system, fuel delivery, ignition system, and emissions control.

Drivetrain:

Clutch operation, hydraulic system, manual transmission (R154 type) overhaul and diagnosis, automatic transmission (if applicable for specific markets/trims), driveshaft, and differential.

Suspension Steering Brakes:

Front and rear suspension component diagnosis, alignment specifications, power steering system, brake system hydraulics, ABS diagnostics (if equipped), rotor and pad replacement.

Electrical System:

Wiring diagrams, ECU troubleshooting, sensor diagnostics, starter, alternator, lighting systems, audio system, power accessories, and HVAC controls.

Body Chassis:

Body panel removal and installation, door mechanisms, interior trim, glass replacement, structural repair considerations, and chassis alignment.

Maintenance:

Scheduled maintenance, fluid changes (oil, coolant, brake fluid), filter replacements, spark plug inspection/replacement, belt adjustments.

Diagnostics:

Troubleshooting guides for common issues, diagnostic trouble codes (DTCs), use of diagnostic tools, component testing procedures.

Repair:

Detailed step-by-step repair instructions for virtually all mechanical and electrical components.

Rebuilds:

Complete engine rebuild procedures, including apex seal replacement, rotor housing lapping, and eccentric shaft balancing.

Specifications:

Torque specifications for all fasteners, component clearances, diagnostic data, and alignment settings.

Depth:

Comprehensive, covering from basic fluid checks and adjustments to full engine and transmission overhauls, including electrical system troubleshooting and body repair.

Diagnostic Tools:

Procedures for using factory diagnostic tools (e.g., built-in diagnostic connectors for ECU checks) and recommended aftermarket tools.

📊 Manual Specifications

Compatibility:

Compatible with any device capable of opening PDF files (computers, tablets, smartphones).

Searchability:

Likely searchable text within the PDF for efficient information retrieval.

Quality:

High-quality digital reproduction of original factory documentation.

Type:

Digital Download (No physical binding)

Type:

N/A (Digital Format)

Type Detail:

Factory Service Manual (FSM) is the most in-depth and authoritative resource for repair and maintenance.

⚙️ Engine Specifications

Engine Code:

13B-REW

Engine Type:

Rotary (Wankel), Twin-Rotor, Twin-Turbocharged

Displacement:

1.3 L (1308 cc)

Horsepower:

255 hp @ 6500 rpm (US spec)

Torque:

217 lb-ft @ 5000 rpm (US spec)

Fuel Delivery:

Electronic Fuel Injection (EFI) with sequential twin-turbo induction

Injectors:

Dual fuel injectors per rotor, with primary injectors for low RPM and secondary injectors for high RPM operation.

Apex Seals:

Standard rotary apex seals (material composition is a critical service point)

Cooling Type:

Water-cooled

🔧 Transmission

Type:

5-speed Manual Transmission (Mazda R154 or similar unit)

Type:

4-speed Automatic Transmission (less common)

Gear Ratios:

Detailed gear ratios will be within the manual, crucial for performance tuning and diagnosis.

Manual Transmission Fluid:

Mazda specifies specific API GL-4 or GL-5 gear oils. Common recommendations include Red Line MT-90 or equivalent.

Clutch:

Hydraulically actuated, single dry plate clutch.

📐 Dimensions

Length:

169.7 inches (4310 mm)

Width:

69.1 inches (1755 mm)

Height:

47.8 inches (1215 mm)

Curb Weight:

Approximately 2,800 - 3,000 lbs (1270 - 1360 kg), depending on trim and options.

Wheelbase:

95.5 inches (2425 mm)

🛡️ Safety Features

Crash Test Data:

Specific NHTSA/IIHS ratings for 1993 models are not as extensively documented as modern vehicles; focus will be on design safety features.

ABS:

Anti-lock Braking System (ABS) available on certain trims/options.

Airbags:

Driver's side airbag standard; passenger airbag not typically equipped in early FD models.

Body Structure:

Reinforced chassis and crumple zones for occupant protection.

💡 Technology Features

Audio System:

Factory AM/FM stereo with cassette player, often with premium speaker options.

ABS:

Anti-lock Braking System (ABS) was an available option, improving braking stability.

Pre Bluetooth Era:

No integrated Bluetooth or modern connectivity features typical of later models.

🔧 Maintenance

Oil Change:

Every 3,000-5,000 miles or 3-6 months, with a high-quality synthetic oil suitable for rotary engines.

Spark Plugs:

Inspection at 15,000 miles, replacement typically around 30,000 miles. Specific platinum or iridium plugs recommended.

Timing Belt Equivalent:

Rotary engines do not have timing belts; they use chains or direct drive for the eccentric shaft. Focus is on apex seal wear and engine compression.

Engine Oil:

SAE 10W-30 or 10W-40 synthetic oil is commonly recommended for rotary engines. Check manual for exact API and viscosity specifications.

Coolant:

Mazda FL22 Long Life Coolant or equivalent. Capacity: Approximately 7.0 Liters (7.4 US Quarts).

Brake Fluid:

DOT 3 or DOT 4 brake fluid.

Differential Fluid:

API GL-5 gear oil. Capacity: Approximately 1.5 Liters (1.6 US Quarts) for standard differential.

Power Steering Fluid:

Dexron II or equivalent ATF (Automatic Transmission Fluid).

Apex Seal Wear:

One of the most critical known issues for rotary engines. Symptoms include poor compression, difficult starting, and reduced power. Regular oil changes and proper engine warm-up are crucial.

Sequential Turbo Failure:

The complex twin-turbo system can be prone to issues if not properly maintained, leading to loss of boost or overboost.

Oil Metering Pump:

Failure of the OMP can lead to insufficient lubrication of the apex seals, accelerating wear. This system often requires periodic maintenance or upgrades.

Catalytic Converter Clogging:

Can occur with prolonged rich fuel mixtures or oil burning, impacting performance.

📚 Vehicle History

Rotary Legacy:

Mazda's long history with the rotary engine, starting with the Cosmo and RX series, culminates in the highly refined 13B-REW in the FD RX-7.

Fd Generation:

The FD3S is the third generation of the RX-7, introduced in 1992. It marked a radical departure from the previous FC generation with its sleek design and twin-turbo power.

Production Years:

1992-2002 (for the FD generation)

Location:

Japan

🏆 Awards & Recognition

Car And Driver Ten Best:

Named to Car and Driver's Ten Best list for several consecutive years (1993-1996).

Import Car Of The Year:

Recognized by MotorTrend as Import Car of the Year for 1993.