Mazda RX-2 RX-3 1970-1978 Service Repair Workshop Manual

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UGS: 58198

Mots clés: 1970 1971 1972 1973 1974 1975 1976 1977 1978 Car Cars Mazda RX Models RX-2 RX-3

Variantes de produits

Description

The Mazda RX-2 and RX-3 models, produced from 1970 to 1978, represent a significant chapter in automotive history, particularly for their pioneering use of rotary (Wankel) engine technology. These vehicles, available in various body styles including coupes, sedans, and wagons, were engineered to offer a distinct driving experience characterized by smoothness and unique performance. Chassis codes such as S102A, S124A, S108A, and S127A identify specific configurations. With their compact rotary engines, typically the 12A variant, and a focus on sporty handling, the RX-2 and RX-3 appealed to enthusiasts seeking an alternative to conventional piston engines, cementing Mazda's reputation for innovation in the automotive industry. This comprehensive service repair workshop manual provides essential information for the maintenance and repair of Mazda RX-2 and RX-3 vehicles. It covers a wide array of systems, including detailed procedures for engine mechanical and electrical components, fuel and emission control systems, drivetrain, suspension, steering, and braking. The manual also details body and interior repairs, HVAC systems, and provides troubleshooting guidance, diagnostic procedures, and crucial technical specifications. Designed for DIY enthusiasts, independent mechanics, and professional technicians alike, this English-language manual aims to facilitate accurate repairs, enable cost savings, and enhance understanding of these classic rotary-powered Mazdas.

🏷️ Basic Information

Identification

Make:

Mazda

Model:

RX-2 / RX-3

Model Years Covered:

1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978

Codes

Chassis Codes Rx2:

S102A, S124A

Chassis Codes Rx3:

S124A, S108A, S127A

👋 Introduction

Market Position

Positioning:

Essential resource for owners and mechanics of vintage Mazda rotary vehicles.

Competitive Analysis

Competitor Manuals:

Provides dealership-level technical information, surpassing generic repair guides.

Key Features

Key Benefit 1:

Enables cost savings on maintenance and repairs.

Key Benefit 2:

Empowers owners to understand and communicate effectively with technicians.

Key Benefit 3:

Contains manufacturer-specific procedures for accurate repairs.

Visual Aid Quality:

Includes diagrams, illustrations, and wiring schematics.

📋 Manual Details

Coverage Areas

Manual Type:

Service Repair Workshop Manual

Language:

English

Format:

PDF Download

Digital Delivery:

Instant Download

Compatibility:

Windows, macOS, Tablets, Smartphones, E-readers

📖 Manual Coverage

Systems Covered

Engine Mechanical:

Complete engine disassembly, inspection, repair, and reassembly. Rotary engine specifics, apex seals, rotor housing, eccentric shaft, lubrication system.

Engine Electrical:

Ignition system, starting system, charging system, wiring diagrams, component testing.

Emission Control:

Exhaust systems, emission control devices, troubleshooting emission-related issues.

Fuel System:

Fuel tank, fuel lines, fuel pump, carburetor (likely Zenith Stromberg or similar), troubleshooting fuel delivery.

Clutch System:

Clutch operation, hydraulic system, clutch disc, pressure plate, release bearing, adjustment and replacement.

Manual Transaxle:

Gearbox disassembly, inspection, repair, lubrication, shift linkage.

Automatic Transaxle:

Automatic transmission diagnosis, adjustment, fluid changes, and minor repairs (if applicable to specific models).

Driveshaft Axle:

Driveshaft, universal joints, rear axle assembly, wheel bearings.

Suspension System:

Front and rear suspension components, shock absorbers, springs, bushings, alignment specifications.

Steering System:

Steering column, steering box/rack and pinion, tie rods, power steering system (if equipped), alignment.

Restraint System:

Seat belts, structural integrity related to safety.

Brake System:

Front and rear brakes (likely disc front, drum rear), hydraulic system, master cylinder, brake lines, pads/shoes, bleeding procedures.

Body Interior Exterior:

Body panel repair, door mechanisms, window regulators, trim components, interior trim, weatherstripping.

Body Electrical:

Headlights, taillights, interior lighting, wipers, horn, dashboard instruments, wiring schematics.

HVAC:

Heating, ventilation, and air conditioning system diagnosis and repair (if equipped).

Procedures Included

Maintenance:

Routine maintenance, fluid changes, filter replacements, lubrication, tune-ups.

Troubleshooting:

Diagnostic procedures for common and uncommon problems across all vehicle systems.

Repair:

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

Diagnostics:

System-specific diagnostics, including electrical testing and mechanical checks.

Wiring Schematics:

Comprehensive electrical wiring diagrams for various systems and trim levels.

Specifications:

Torque specifications, clearances, fluid capacities, electrical values, diagnostic parameters.

Technical Depth

Depth Level:

Comprehensive (from basic maintenance to major overhauls).

User Target Audience:

DIY enthusiasts, independent mechanics, professional technicians.

📊 Manual Specifications

File Format

Digital Format:

Searchability:

Searchable text content for quick information retrieval.

Print Quality

Printability:

All pages printable for workshop use.

Binding Type

Digital Binding:

N/A (Digital File)

Paper Type

Digital Paper Type:

N/A (Digital File)

Manual Completeness

Completeness:

Complete and intact, no missing or corrupt parts.

Content Quality:

Accurate, clear, and concise text with diagrams and illustrations.

⚙️ Engine Specifications

Primary Engine

Engine Type:

Rotary (Wankel)

Engine Code Rx2 12A:

12A (typically 1.3L equivalent)

Engine Code Rx3 12A:

12A (typically 1.3L equivalent)

Engine Code Rx3 12B:

12B (later models, potentially twin-rotor, higher displacement)

Performance

Horsepower Range 12A:

Approximately 100-120 hp (depending on specific trim and tuning)

Torque Range 12A:

Approximately 115-130 lb-ft (depending on specific trim and tuning)

Fuel System

Carburetion Type:

Single or Dual Barrel Carburetor (e.g., Zenith Stromberg, Hitachi)

Fuel Type:

Unleaded Gasoline (Octane rating as per manual)

Fuel Pump Type:

Mechanical or Electric (model dependent)

🔧 Transmission

Standard

Transmission Type:

4-speed Manual Transaxle

Optional

Transmission Type Optional:

3-speed Automatic Transaxle (less common, but available on some models)

Features

Transaxle Layout:

Integrated engine and transmission unit, driving rear wheels.

📐 Dimensions

Exterior

Body Styles:

Coupe, Sedan, Hardtop Coupe (RX-2); Coupe, Sedan, Wagon (RX-3)

Wheelbase Rx2 Sedan:

Approx. 97.0 inches (2465 mm)

Wheelbase Rx2 Coupe:

Approx. 97.0 inches (2465 mm)

Wheelbase Rx3 Sedan:

Approx. 97.0 inches (2465 mm)

Wheelbase Rx3 Coupe:

Approx. 97.0 inches (2465 mm)

Wheelbase Rx3 Wagon:

Approx. 97.0 inches (2465 mm)

Weights

Curb Weight Range:

Approx. 2200 - 2600 lbs (1000 - 1180 kg), varies by body style and equipment.

🛡️ Safety Features

Ratings

Safety Standards Era:

Reflects safety standards of the 1970s; less stringent than modern vehicles.

Active Features

Active Safety:

Four-wheel drum or front disc/rear drum brakes, responsive steering.

Passive Features

Passive Safety:

Lap belts, reinforced safety cage construction (typical for the era).

💡 Technology Features

Infotainment

Infotainment Features:

Basic AM/FM radio, possibly an 8-track player on higher trims.

Driver Assistance

Driver Assistance Features:

None (vehicle from an era predating modern driver assistance systems).

Connectivity

Connectivity Features:

None.

🔧 Maintenance

Service Intervals

Oil Change Interval:

Typically every 3,000-5,000 miles or 3-6 months, consult manual for specifics.

Spark Plug Replacement:

Intervals vary; manual will specify correct plug type and replacement schedule.

Rotor Oil Level:

Regular checks and topping up are crucial for rotary longevity.

Fluid Specifications

Engine Oil Type:

API SF or SG rated, SAE 10W-30 or 10W-40 recommended (check manual for precise viscosity and API rating).

Transmission Fluid Manual:

GL-4 Gear Oil, SAE 75W-90 or 80W-90 (verify with manual).

Transmission Fluid Automatic:

Dexron III or equivalent (verify with manual).

Brake Fluid:

DOT 3 or DOT 4 brake fluid (verify with manual).

Coolant:

Ethylene Glycol based antifreeze, 50/50 mix with distilled water (verify manual).

Known Issues

Rotary Engine Wear:

Apex seal wear is a primary concern for high-mileage rotary engines; requires rebuild.

Carburetor Issues:

Tuning and maintenance of carburetors can be critical for smooth operation.

Rust And Corrosion:

Common issue on vehicles of this age, especially in rust-prone climates.

Electrical Gremlins:

Aging wiring harnesses and connections can lead to intermittent electrical faults.

📚 Vehicle History

Brand Heritage

Brand Focus:

Mazda's pioneering spirit in rotary engine technology.

Model Evolution

Rx2 Introduction:

Introduced in 1970, built on Mazda's growing reputation for sporty and unique vehicles.

Rx3 Introduction:

Introduced in 1971 as a successor to the Familia Rotary (R100), offering a more refined rotary experience.

Common Platform:

Shared mechanical components and rotary engine technology.

Production

Production Period:

1970-1978

Manufacturing Location:

Japan

🏆 Awards & Recognition

Recognitions

Rotary Performance:

Mazda's rotary engines garnered acclaim for their unique performance characteristics and smoothness.

Motorsport Success:

RX-2 and RX-3 variants achieved success in various motorsport disciplines, highlighting their sporty nature.