Initial Positioning:
Mazda's groundbreaking sports car, establishing the brand's reputation for innovative engineering and performance. Competed with Datsun Z-cars and entry-level European sports cars.
Competitors 1978:
Datsun 280Z, Toyota Celica GT, Porsche 924 (later), Chevrolet Monza.
Design Philosophy:
Lightweight, compact, balanced chassis with a unique rotary powerplant, emphasizing driver engagement and handling.
Target Audience:
Enthusiast drivers seeking a distinct, affordable, and fun-to-drive sports coupe.
Coverage Scope:
All Models & All Repairs A-Z
Estimated Page Count:
600-800 (typical for comprehensive factory service manuals)
Type:
Factory Service Manual / Repair Manual
Format:
Likely printed book format, original dealer issue. Digital PDF is a common aftermarket conversion.
Engine:
12A Rotary Engine (1.1L displacement equivalent), lubrication, cooling, fuel, ignition, emissions control systems.
Transmission:
4-speed manual transmission, clutch system, driveline, rear axle assembly.
Chassis:
Suspension (front strut, rear multi-link), steering, brakes (front discs, rear drums), wheels, tires.
Electrical:
12V electrical system, battery, charging system, starting system, lighting, gauges, infotainment (radio/cassette), wiring diagrams.
Body:
Body panels, doors, glass, interior trim, bumpers, weatherstripping, underbody.
Maintenance:
Scheduled maintenance, fluid changes, filter replacements, spark plug (apex seal) inspection/replacement, belt adjustments.
Troubleshooting:
Diagnostic procedures for engine performance, electrical faults, braking issues, and other common problems.
Repair:
Detailed step-by-step instructions for component removal, disassembly, inspection, repair, assembly, and reinstallation.
Diagnostics:
Fault finding charts, component testing procedures, and specifications for diagnosing issues.
Depth:
Comprehensive, covering from basic fluid checks and adjustments to complete engine and transmission overhauls, and detailed electrical system diagnostics.
File Format:
Original: Printed paper. Digital: PDF (Searchable, Printable)
Print Quality:
Original: High-quality paper, clear diagrams. Digital: High-resolution scans, vector graphics for diagrams where available.
Binding Type:
Original: Perfect bound or spiral bound. Digital: N/A
Paper Type:
Original: Durable paper stock. Digital: N/A
Engine Type:
Two-Rotor Wankel Rotary Engine
Displacement Cc:
1146 cc (equivalent to approx. 2.3L piston engine displacement for tax purposes)
Rotor Housing Design:
Reuleaux triangle rotor within an epitrochoid housing.
Horsepower Gross SAE:
100-110 hp (depending on emissions equipment and market)
Torque Gross SAE:
112-116 lb-ft
Carburetion:
One Hitachi downdraft 2-barrel carburetor (later models may have additional small carburetor for cold start assist).
Fuel Type:
Unleaded gasoline, Octane rating 91 or higher recommended.
Ignition Type:
Distributor-based, single ignition coil.
Systems:
Air injection system (ASR - Air والسور Reduction), catalytic converter (California models).
Transmission Type:
4-speed manual transmission
Transmission Type:
3-speed automatic transmission (less common)
Clutch Type:
Single dry plate clutch
Gear Ratios Manual:
Refer to manual for specific ratios, typically around 3.485:1 for 1st gear.
Transmission Fluid Spec:
GL-4 Gear Oil, SAE 75W-90 or 80W-90
Crash Test Results:
No modern crash test data available for this era. Designed to 1970s safety standards.
Braking System:
Front: Ventilated Disc Brakes; Rear: Drum Brakes. Dual circuit hydraulic system.
Parking Brake:
Mechanical, rear drum.
Seat Belts:
Three-point retractable front seat belts.
Steering Column:
Collapsible steering column.
Oil Change Interval:
Every 3,000 miles or 3 months (whichever comes first).
Spark Plug Inspection:
Inspect every 6,000 miles, replace as needed. Rotary engines require specific spark plug types (long reach, platinum or iridium recommended for longevity).
Air Filter Replacement:
Every 12,000 miles or annually.
Coolant Flush:
Every 24,000 miles or 2 years.
Engine Oil Type:
API SF/SG rated, SAE 10W-30 or 10W-40 (check manual for specific viscosity recommendations based on climate).
Engine Oil Capacity Liters:
Approx. 4.5 - 5.0 liters (including oil filter).
Coolant Type:
Ethylene glycol-based antifreeze, 50/50 mix with distilled water.
Brake Fluid Type:
DOT 3 or DOT 4 brake fluid.
Apex Seals:
Wear of apex seals is a critical component for rotary engine health. Regular oil checks and proper engine warm-up are essential. Manual details seal wear diagnosis.
Carburetor Tuning:
Carburetors can be sensitive to altitude and wear. Proper tuning and cleaning are important for optimal performance and fuel economy. Manual provides specific jetting and adjustment data.
Thermal Reactor System:
Early emission control systems can be complex and prone to failure (e.g., cracking). Manual details inspection and repair of this system.
Rust And Corrosion:
Common in vehicles of this age, particularly in areas exposed to salt or moisture. Manual provides body repair guidance.
Mazda Rotary Origins:
Mazda's commitment to the Wankel rotary engine, licensed from NSU Motorenwerke, began in the 1960s, culminating in the Cosmo Sport and then the RX-7.
Rx7 Generations:
First Generation (SA22C): 1978-1985. Second Generation (FC): 1985-1992. Third Generation (FD): 1992-2002.
Production Start Year:
1978
Manufacturing Location:
Japan
Early Reception:
Critical acclaim for its handling, styling, and unique rotary engine. Praised for offering sports car performance at a more accessible price point.
