Mazda RX2 1970-1978 Factory Service Repair Manual

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Tipo: Car

Proveedor:

SKU: 96137

Etiquetas: 1970 1971 1972 1973 1974 1975 1976 1977 1978 Car Cars Mazda Misc RX2

Variantes de producto

Descripción

The Mazda RX2, produced from 1970 to 1978, represents a significant chapter in automotive history, particularly for its pioneering use of Mazda's signature rotary engine technology. Available in sedan (S102) and coupe (S124) body styles, this compact sports car offered a unique driving experience characterized by its smooth, high-revving 1146cc 12A rotary engine, delivering approximately 110-130 horsepower. Its design philosophy emphasized driver engagement and agile handling, making it a distinctive alternative to its piston-engined competitors of the era. The RX2's sporty appeal and innovative powertrain established Mazda's reputation for engineering excellence and a commitment to alternative engine designs. This comprehensive Factory Service Repair Manual covers the Mazda RX2 models from 1970 through 1978. It provides in-depth information across all major vehicle systems, including detailed procedures for routine maintenance, engine (rotary 12A) and drivetrain repairs, chassis and suspension servicing, and electrical system diagnostics. The manual is designed to assist owners, technicians, and mechanics in understanding, maintaining, and repairing their RX2, ensuring optimal performance and longevity. It includes essential technical specifications, troubleshooting guides, and clear explanations of complex procedures, making it an indispensable resource for preserving the unique characteristics of this rotary-powered classic.

🏷️ Basic Information

Identification

Make:

Mazda

Model:

Model Code:

S102, S124

Generation

Generation:

First Generation

Codes

Chassis Codes:

S102 (Sedan), S124 (Coupe)

👋 Introduction

Market Position

Market Segment:

Compact Sports Coupe & Sedan

Competitive Analysis

Key Competitors:

Toyota Corolla Levin, Datsun 1200/1300, Honda Civic (early generations)

Key Features

Unique Selling Proposition:

Mazda's signature rotary engine technology, offering a unique driving experience and compact power unit.

Design Philosophy:

Sporty yet practical design, focusing on driver engagement and agile handling.

📋 Manual Details

Coverage Areas

Years Covered:

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

Page Count

Estimated Page Count:

Approximately 500+

Manual Type

Manual Type:

Factory Service Repair Manual

Language

Language:

English

Format

Format:

Digital (PDF)

📖 Manual Coverage

Systems Covered

Engine Systems:

Rotary Engine (12A), Lubrication, Cooling, Fuel, Ignition, Exhaust

Drivetrain Systems:

Transmission (Manual & Automatic), Clutch, Driveshaft, Differential, Axles

Chassis Systems:

Suspension (Front & Rear), Steering, Brakes (Front Disc, Rear Drum)

Electrical Systems:

Wiring Diagrams, Lighting, Instrumentation, Starting & Charging, Ignition Switch, Fuses & Relays

Body And Interior:

Body Panels, Doors, Windows, Seats, Trim, HVAC System, Wipers

Procedures Included

Maintenance Procedures:

Routine Inspections, Oil Changes, Filter Replacements, Spark Plug (Igniter) Gap Adjustment, Apex Seal Inspection

Repair Procedures:

Engine Rebuilds (Rotary), Transmission Overhaul, Brake System Repairs, Suspension Component Replacement, Electrical Component Diagnosis & Repair

Troubleshooting:

Diagnostic Charts, Symptom-Based Troubleshooting Guides, Common Problem Identification

Technical Depth

Technical Depth:

Comprehensive (from basic maintenance to full engine and transmission rebuilds)

Diagnostic Capabilities:

Detailed electrical schematics, mechanical specifications, and diagnostic procedures for all major systems.

📊 Manual Specifications

File Format

File Format:

Print Quality

Print Quality:

High-resolution scans, clear text and diagrams

Binding Type

Binding Type:

N/A (Digital)

Paper Type

Paper Type:

N/A (Digital)

Searchability

Searchability:

Searchable text for quick information retrieval

⚙️ Engine Specifications

Primary Engine

Engine Type:

Mazda 12A Rotary Engine (Wankel)

Engine Designation:

Displacement:

1146cc (Two Rotor)

Performance

Horsepower Output:

Approx. 110-130 hp (depending on variant and emissions controls)

Torque Output:

Approx. 120-135 lb-ft

Fuel System

Fuel Delivery:

Carbureted (e.g., Hitachi, Mikuni twin-choke)

Engine Components

Rotor Housing Material:

Chromium-plated aluminum alloy

Apex Seals:

Crucial component for sealing; material typically carbon or ceramic composite. Manual details inspection and replacement.

🔧 Transmission

Standard

Standard Transmission:

4-Speed Manual

Optional

Optional Transmission:

3-Speed Automatic (e.g., Mazda 'J' transmission)

Features

Clutch Type:

Dry single plate

Gear Ratios:

Detailed in manual for both manual and automatic transmissions.

📐 Dimensions

Exterior

Wheelbase:

Approx. 98.4 inches (2499 mm)

Length:

Approx. 161.6 inches (4105 mm)

Width:

Approx. 63.0 inches (1600 mm)

Height:

Approx. 52.4 inches (1331 mm)

Weights

Curb Weight:

Approx. 2100-2300 lbs (950-1040 kg)

Gross Vehicle Weight:

Specified in manual for load capacity.

Wheels And Tires

Wheelbase:

Approx. 98.4 inches (2499 mm)

Wheel Size:

Typically 13-inch or 14-inch

Bolt Pattern:

4x110

Tire Size:

e.g., 175/70R13, 185/70R13

🛡️ Safety Features

Ratings

Crash Test Data:

Limited official data available for this era; manual focuses on repair and maintenance, not NHTSA ratings.

Active Features

Braking System:

Front Disc, Rear Drum

Steering System:

Recirculating Ball

Passive Features

Seatbelts:

Lap and shoulder belts (front), lap belts (rear) depending on configuration.

Body Construction:

Unibody construction with crumple zones designed for the era.

💡 Technology Features

Infotainment

Audio System:

Basic AM/FM radio, often with an optional cassette player. Aftermarket upgrades common.

Instrument Cluster:

Speedometer, tachometer (redlined at ~7000-7500 RPM for 12A), fuel gauge, temperature gauge, oil pressure warning light.

Driver Assistance

Antilock Brakes:

Not available on standard models of this era.

Power Steering:

Optional on some trims, standard recirculating ball system.

🔧 Maintenance

Service Intervals

Oil Change Interval:

Typically every 3,000-5,000 miles (5,000-8,000 km) or 6 months. Manual specifies exact intervals.

Filter Replacement:

Oil filter with every oil change. Air filter as per manual's schedule.

Ignition Maintenance:

Regular inspection and adjustment of spark plug (igniter) gap; replacement as needed.

Coolant Flush:

Every 12-24 months or specified mileage.

Fluid Specifications

Engine Oil Type:

Specific rotary engine oil recommended, often a high-quality conventional or synthetic blend. Manual specifies SAE viscosity and API service rating (e.g., API SF or SG).

Transmission Fluid Manual:

GL-4 gear oil, typically SAE 75W-90 or 80W-90. Manual specifies.

Transmission Fluid Automatic:

Dexron II or equivalent ATF. Manual specifies.

Brake Fluid:

DOT 3 or DOT 4, depending on system design. Manual specifies.

Coolant Type:

Ethylene glycol based antifreeze. Manual specifies mixture ratio and type.

Known Issues

Rotary Engine Considerations:

Apex seal wear, oil seal deterioration, potential for carbon build-up if not maintained. Manual provides detailed inspection and repair procedures.

Carburetor Tuning:

Requires regular adjustment due to sensitivity to altitude and fuel quality. Manual covers tuning procedures.

Chassis Corrosion:

Common in vehicles of this age, especially in rust-prone climates. Manual offers some body repair guidance.

📚 Vehicle History

Brand Heritage

Mazda Rotary Legacy:

Mazda's commitment to rotary engine technology, starting with the Cosmo Sport and continuing with the RX series.

Model Evolution

Rx Series Lineage:

Preceded by the Cosmo Sport and followed by the RX-3, RX-4, RX-7.

Rx2 Positioning:

Marketed as a sporty, compact car with unique rotary power, offering a distinct alternative to piston-engined rivals.

Production

Production Years:

1970-1978 (across various markets)

Manufacturing Location:

Japan

🏆 Awards & Recognition

Recognitions

Automotive Press Reviews:

Received positive reviews for its sporty handling and unique rotary engine performance, often praised for its value proposition in the sports coupe segment.

Rotary Engine Recognition:

Recognized as an accessible entry point into Mazda's rotary-powered vehicles.