Historical Context:
The Mazda RX-3 was a pivotal model for Mazda, showcasing their commitment to the unique rotary engine technology and offering a sporty, stylish alternative in the compact car segment.
Competitors:
Competed against vehicles like the Datsun 1200/B210, Toyota Corolla, Honda Civic, and Ford Escort.
Unique Selling Points:
Rotary engine performance and smoothness, sporty styling, agile handling, affordable price point.
Intended Users:
Enthusiast owners, DIY mechanics, professional repair shops seeking reliable information for classic Mazda rotary vehicles.
Description From Product:
Easy to read text sections with top-quality diagrams and instructions, written for both do-it-yourself enthusiasts and experienced mechanics.
Primary Markets:
North America, Japan, Australia, Europe
Body Styles Covered:
Coupe, Sedan, Station Wagon
Estimated Page Count:
Detailed internal estimate not provided, but typical for comprehensive factory service manuals covering multiple years and configurations.
Type:
Service and Repair Manual
Delivery Method:
Instant Download
Printability:
Full Printable
Searchability:
Likely text-searchable due to PDF format, facilitating quick information retrieval.
Software Requirements:
Adobe PDF Reader, WinZip (or equivalent unzipping software)
Operating System Compatibility:
All Versions of Windows & Mac
Engine Management:
Rotary engine (12A) tuning, diagnostics, repair, rebuild procedures.
Fuel System:
Carburetor (e.g., Hitachi, Mikuni) service, fuel pump, fuel lines, tank.
Ignition System:
Distributor, ignition coils, spark plugs, timing adjustment.
Cooling System:
Radiator, thermostat, water pump, coolant flow, fan operation.
Lubrication System:
Oil pump, oil cooler, lubrication for rotary apex seals.
Transmission:
Manual transmission service, clutch operation, fluid specifications.
Drivetrain:
Driveshaft, differential, axle components.
Suspension:
Front and rear suspension components, alignment specifications, shock absorbers, springs.
Steering:
Steering gearbox, steering column, tie rods, power steering (if equipped).
Brakes:
Front disc brakes, rear drum brakes, brake hydraulics, parking brake.
Electrical System:
Battery, alternator, starter, lighting, wiring diagrams, fuses, relays.
Body And Chassis:
Body panel removal/installation, interior trim, glass, seals, chassis components.
HVAC:
Heating and ventilation system (if equipped).
Maintenance:
Scheduled maintenance, oil changes, filter replacements, tune-ups.
Troubleshooting:
Diagnostic procedures for common and uncommon problems, symptom-based troubleshooting.
Repair:
Step-by-step repair instructions for all major components.
Rebuild:
Detailed procedures for engine rebuilds and transmission overhauls.
Diagnostics:
Engine, electrical, and mechanical system diagnostics.
Specifications:
Torque values, clearances, fluid capacities, timing settings.
Depth:
Comprehensive. Covers everything from basic fluid checks to complete engine and transmission rebuilds, including detailed electrical troubleshooting and component-level repair.
Diagrams Illustrations:
High-quality diagrams and exploded views for clear visual guidance.
Type:
Mazda Rotary (Wankel)
Displacement:
1.16 L (69.7 cu in) (12A)
Rotor Design:
Two-rotor, side-port induction
Horsepower Est:
Approx. 90-100 hp (depending on market and specific model year)
Torque Est:
Approx. 95-105 lb-ft (depending on market and specific model year)
Carburetion:
Single or Twin Hitachi or Mikuni downdraft carburetors.
Fuel Type:
Unleaded gasoline (later models, earlier may have used leaded or had provisions).
Oil Type Recommendation:
High-quality mineral or semi-synthetic engine oil, specifically formulated or known to be suitable for rotary engines. SAE 20W-50 or 10W-30 often recommended (refer to specific manual for exact spec).
Maintenance Considerations
Apex Seal Lubrication:
Crucial for rotary engine longevity; often involves a separate oil injection system or specific fuel additives depending on the era and market. Manual will detail procedures.
Type:
3-speed automatic (often a Toyo Kogyo unit)
Clutch Type:
Dry single-plate
Manual Transmission Fluid:
GL-4 gear oil (e.g., SAE 75W-90 or 80W-90, consult manual for precise grade).
Automatic Transmission Fluid:
Dexron II or equivalent (for automatic models).
Wheelbase:
Approx. 95.5 inches (2425 mm)
Length Est:
Approx. 162-167 inches (4115-4240 mm) (varies by body style)
Width Est:
Approx. 63.8 inches (1620 mm)
Height Est:
Approx. 52.4-54.1 inches (1330-1375 mm) (varies by body style)
Curb Weight Est:
Approx. 2100-2400 lbs (950-1090 kg) (varies by body style and equipment)
Wheel Bolt Pattern:
4x110mm
Standard Tire Size:
Often 165SR13 or 175/70SR13 (check manual for specific fitments).
Oil Change Interval:
Typically every 3,000-5,000 miles or 3-6 months, but requires specific verification in manual for rotary engines.
Spark Plug Replacement:
Varies, but often recommended at significant mileage intervals or during major tune-ups. Rotary engines use specific spark plug types and gap settings.
Rotor Housing Inspection:
Not a routine interval, but critical for engine longevity. Manual details signs of wear and diagnostic procedures.
Engine Oil Capacity:
Approx. 4.5-5 quarts (4.3-4.7 liters) with filter. Specific amount for oil injection system also noted in manual.
Coolant Capacity:
Approx. 6.0-7.0 quarts (5.7-6.6 liters) depending on model.
Brake Fluid Type:
DOT 3 or DOT 4 (check manual for exact specification).
Apex Seal Wear:
A common concern for rotary engines if not properly maintained or if overheated. Manual provides diagnostic checks.
Carburetor Tuning:
May require periodic adjustment or rebuilding due to age and wear.
Starter Motor Issues:
Some older models may experience starter motor wear or issues due to the rotary engine's starting characteristics.
Rust Corrosion:
As with many cars of this era, rust and corrosion, particularly in wheel wells, rocker panels, and around windows, can be a significant issue. Manual may offer body repair guidance.
Mazda Rotary Pioneer:
Mazda's dedication to the Wankel rotary engine began with the Cosmo and was significantly advanced with the RX-3, cementing their reputation for innovative powertrains.
Rx Series Progression:
The RX-3 followed the RX-2 and preceded the RX-7, filling a gap in Mazda's sporty coupe/sedan lineup.
Design Influences:
Early RX-3s had styling cues reminiscent of American muscle cars and European sports sedans of the era, with later models adopting a more distinct Mazda design language.
Manufacturing Location:
Japan
Global Sales Impact:
Successful globally, contributing to Mazda's growth and image as a manufacturer of unique and engaging vehicles.
