1975 Mazda RX-3 Service Repair Workshop Manual

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🏷️ Basic Information Identification Make: Mazda Model: RX-3 Year: 1975 Codes Chassis Code Prefix: S102 Generation Generation Designation: First Generation (1971-1978) 👋 Introduction Market Position Target Audience: Owners of the...

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Type: Car

Vendor:

Sku: 290599

Tags: 1975 Car Cars Mazda RX Models RX-3

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Description

🏷️ Basic Information

Identification

Make:

Mazda

Model:

Year:

Codes

Chassis Code Prefix:

Generation

Generation Designation:

First Generation (1971-1978)

👋 Introduction

Market Position

Target Audience:

Owners of the 1975 Mazda RX-3, DIY mechanics, classic car enthusiasts

Competitive Analysis

Value Proposition:

Provides essential, detailed information for immediate repairs and ongoing maintenance, saving significant costs compared to professional servicing.

Key Features

Usability:

Easy-to-follow, step-by-step instructions suitable for all skill levels.

Accessibility:

Instant download format for immediate access.

Satisfaction Guarantee:

Customer satisfaction guaranteed.

📋 Manual Details

Coverage Areas

Primary Coverage:

Comprehensive Service and Repair

Secondary Coverage:

Technical Data, Parts Information, Diagrams

Page Count

Estimated Page Count:

Extensive (specific number not provided, but described as 'most complete')

Manual Type

Type:

Workshop Service Repair Manual

Language

Language:

English

Format

Digital Format:

Digital Compatibility:

All Versions of Windows & Mac

Digital Requirements:

Adobe PDF Reader

Printability:

Printable (all pages)

📖 Manual Coverage

Systems Covered

Engine Systems:

Engine, Lubrication System, Cooling System, Fuel and Emission Control System, Engine Electrical System

Drivetrain Systems:

Clutch, Manual Transmission, Automatic Transmission, Electronically-Controlled Transmission (if applicable to specific RX-3 trims of '75), Propeller Shaft, Front & Rear Axle

Chassis Systems:

Steering System, Braking System, Wheels & Tires, Suspension

Body And Electrical:

Body, Body Electrical System, Heating & Air Conditioning Systems

Procedures Included

Maintenance Procedures:

Routine checks, fluid changes, filter replacements, tune-ups

Repair Procedures:

Engine overhaul, transmission repair, brake service, suspension component replacement, electrical system troubleshooting

Diagnostic Procedures:

Troubleshooting guides for common and uncommon issues

Installation Procedures:

Installation of specific components and accessories (likely inferred)

Technical Depth

Depth:

Comprehensive, suitable for 'Do-It-Yourself' enthusiasts and professional technicians

Detail Level:

Detailed technical data, diagrams, and step-by-step instructions

Part Information:

Complete list of parts and pictures

📊 Manual Specifications

File Format

File Type:

Searchability:

Likely text-searchable, aiding quick information retrieval

Print Quality

Print Output:

Printable pages for workshop use

Binding Type

Physical Binding:

N/A (Digital Download)

Paper Type

Physical Paper Type:

N/A (Digital Download)

⚙️ Engine Specifications

Primary Engine

Engine Type:

Rotary (Wankel)

Engine Displacement Cc:

1146 cc (70.3 cu in) - Equivalent rotor housing displacement. Often referred to as 1.1L or 1.2L

Engine Code:

12A (Rotary)

Performance

Horsepower Gross Ps:

Approximately 90-100 PS (Gross) depending on specific market and emissions controls for 1975.

Torque Gross Lb-Ft:

Approximately 100-110 lb-ft (Gross) depending on specific market and emissions controls for 1975.

Fuel System

Carburetion:

Typically twin-barrel carburetor(s).

Fuel Type:

Unleaded Gasoline (as regulations began to mandate)

🔧 Transmission

Standard

Transmission Type Standard:

4-speed Manual

Optional

Transmission Type Optional:

3-speed Automatic

Features

Clutch Type:

Single dry plate (for manual transmission)

📐 Dimensions

Exterior

Body Styles:

Coupe, Sedan, Station Wagon

Wheelbase Mm:

Approx. 2400 mm (94.5 inches)

Length Mm:

Approx. 4150-4350 mm (163.4-171.3 inches) depending on body style

Width Mm:

Approx. 1600-1630 mm (63.0-64.2 inches)

Weights

Curb Weight Kg:

Approx. 950-1050 kg (2094-2315 lbs) depending on body style and equipment

🛡️ Safety Features

Ratings

Safety Ratings Era:

Safety standards of the mid-1970s. Less stringent than modern standards.

Active Features

Braking System:

Front Disc Brakes, Rear Drum Brakes

Steering Type:

Recirculating ball steering system.

Passive Features

Seatbelts:

Standard lap and shoulder belts

Body Construction:

Unitary body construction, intended for crash energy absorption relative to the era.

💡 Technology Features

Infotainment

Audio System:

Factory AM/FM radio, potentially with an 8-track player or cassette player depending on trim level and market.

Driver Assistance

Anti-lock Braking System (ABS) was not a standard or common option for this model year.

Connectivity

Connection Ports:

N/A (No modern connectivity features like USB or Bluetooth).

🔧 Maintenance

Service Intervals

Oil Change Interval Miles:

Typically 3,000-5,000 miles, or as specified in the manual. Rotary engines require specific oil quality and levels.

Spark Plug Replacement Miles:

Varies, but typically around 15,000-20,000 miles for the specific rotary-compatible plugs.

Timing Belt Replacement:

N/A (Rotary engines do not use timing belts; they use chains or direct drive for the rotors).

Fluid Specifications

Engine Oil Type:

API SF or SG classification, SAE 10W-30 or 10W-40 recommended (specific rotary oil requirements should be confirmed in the manual).

Coolant Type:

Ethylene glycol-based antifreeze. Capacity and mixture ratio specified in the manual.

Transmission Fluid Manual:

GL-4 Gear Oil, SAE 75W-90 or 80W-90 (check manual for exact spec).

Transmission Fluid Automatic:

Dexron II or equivalent (check manual for exact spec).

Brake Fluid Type:

DOT 3 or DOT 4.

Known Issues

Apex Seals:

Wear of apex seals is a common concern for all rotary engines, affecting compression and performance over time. Proper lubrication and avoiding over-revving are critical.

Carburetor Tuning:

Carburetors can require periodic adjustment and cleaning due to age and fuel variability.

Cooling System Maintenance:

Regular flushing and inspection of the cooling system is vital for rotary engine longevity.

Electrical Connections:

Corrosion and degradation of electrical connections are common in vehicles of this age.

📚 Vehicle History

Brand Heritage

Brand Focus:

Mazda's pioneering work with rotary engine technology.

Model Evolution

Positioning:

The RX-3 was Mazda's sporty compact offering, bridging the gap between the smaller RX-2 and the larger RX-4, showcasing the performance potential of the rotary engine.

Body Style Introduction:

Introduced in 1971, the RX-3 evolved through various updates, with the 1975 model representing a refined iteration.

Production

Production Period:

1971-1978

🏆 Awards & Recognition

Recognitions

Rotary Prowess:

The RX-3, powered by the innovative Wankel rotary engine, contributed significantly to Mazda's reputation for performance and engineering distinctiveness in the 1970s.