1975 Mazda Rotary Pickup Workshop Manual

🏷️ Basic Information

Make:

Mazda

Model:

Rotary Pickup (also marketed as Mazda REPU)

Model Variant:

Rotary Pickup / REPU, half-ton pickup

Production Years Covered:

1974-1977 model years, with focus on 1975

Manufacturer:

Mazda Motor Corporation (Toyo Kogyo Co., Ltd.)

Assembly Location:

Hiroshima, Japan

Body Style:

Two-door pickup truck

Manual Type:

Factory service repair workshop manual (digital PDF)

👋 Introduction

Target Audience:

Do-it-yourself owners and experienced mechanics servicing the 1975 Mazda Rotary Pickup

Level of Detail:

Complete disassembly-based procedures with hundreds of photos, illustrations and diagrams

Factory Source:

Original manufacturer service information, not a generic third-party guide

Diagnostic Coverage:

Troubleshooting combined with detailed electrical wiring diagrams

Procedure Format:

Numbered step-by-step instructions with detailed substeps

Illustrations:

Exploded views, cutaways, photos and enlarged insets

Navigation:

Numbered table of contents and bold figure numbers matching text to illustrations

Notices:

Notes, cautions and warnings throughout each chapter

📋 Manual Details

File Format:

PDF (Adobe PDF format)

Delivery Method:

Instant download after purchase

Requirements:

PDF Reader; works on PC-based Windows and Mac systems

Binding:

Digital

Printability:

All pages are printable

Language:

English

Manual Type:

Factory service repair workshop manual (FSM)

Page Count:

N/A - page count not specified for this download

Coverage Areas:

General information, service information, suspension, driveline, brakes, steering, engine mechanical, cooling, starting, ignition, emission controls, engine controls, transmission, exhaust, fuel system, HVAC, instrumentation and warning systems, battery and charging, audio, lighting, electrical, body interior and exterior

📖 Manual Coverage

General Information:

Vehicle identification, specifications, torque values and service precautions

Service Information:

Scheduled maintenance, troubleshooting charts and diagnostic procedures

Engine Mechanical:

Rotary engine disassembly, inspection, measurement and reassembly

Cooling System:

Radiator, water pump, thermostat and cooling fan service

Starting System:

Starter motor testing and replacement

Ignition System:

Distributor, coil, spark plug and ignition timing procedures

Emission Controls:

Emission control devices and vacuum routing

Engine Controls:

Carburetor and related engine control adjustments

Fuel System:

Fuel pump, fuel lines, fuel tank and fuel delivery service

Transmission:

Manual transmission removal, overhaul and installation

Driveline:

Clutch, driveshaft and rear axle service

Suspension:

Front and rear suspension inspection, repair and alignment specifications

Brakes:

Brake system inspection, repair and bleeding procedures

Steering:

Steering gear, linkage and steering column service

Exhaust System:

Exhaust manifold, piping and muffler service

Battery and Charging System:

Battery, alternator and charging circuit testing and repair

Instrumentation and Warning Systems:

Gauges, indicator lamps and warning circuits

Lighting:

Headlamps, tail lamps, turn signals and interior lighting service

Electrical:

Complete electrical service procedures with detailed wiring diagrams

Audio Systems:

Radio and speaker service

HVAC:

Heater and ventilation system service

Body Interior and Exterior:

Interior trim, exterior panels, doors and body adjustments

Parts Information:

N/A - exploded diagrams and figure references identify components; part numbers are not listed

📊 Manual Specifications

File Format:

PDF (searchable, bookmarked, zoomable)

Compatibility:

Windows, macOS, Linux, iOS, and Android — any device with a PDF reader

Requirements:

A PDF reader application (e.g. Adobe Acrobat Reader, free)

Searchability:

Fully text searchable for fast lookup of any topic

Print Quality:

High-resolution digital pages, printable at full clarity

Binding Type:

N/A — digital download, no physical binding

Paper Type:

N/A — digital download, no physical paper

⚙️ Engine Specifications

Engine Type:

13B two-rotor Wankel rotary engine

Displacement:

1.3 liters (2 x 654 cc)

Fuel System:

Four-barrel carburetor

Ignition System:

Distributor with dual ignition coils

Cooling System:

Liquid-cooled with radiator and water pump

Horsepower:

Approximately 110 hp (factory rating for this era)

Torque:

Approximately 118 lb-ft (factory rating for this era)

Transmission:

4-speed manual; 3-speed automatic optional

🔧 Transmission

Type:

4-speed manual transmission

Clutch:

Single dry-plate clutch

Gearshift:

Floor-mounted shift lever

Type:

3-speed automatic transmission available as an option

Service Procedures:

Removal, disassembly, inspection, reassembly and installation covered in the manual

Related Components:

Driveshaft, rear axle and clutch service procedures included

📐 Dimensions

Wheelbase:

N/A - not specified for this model

Overall Length:

N/A - not specified for this model

Curb Weight:

N/A - not specified for this model

Payload:

Half-ton class pickup

🛡️ Safety Features

Crash Test Ratings:

N/A - not published for this era

Safety Ratings:

N/A - not published for this era

Seat Belts:

Front lap-and-shoulder seat belts

Body Construction:

Steel body-on-frame pickup construction

Head Restraints:

N/A - not specified for this model

Brakes:

Hydraulically operated service brakes

Steering:

Conventional recirculating-ball steering

Driver Assistance:

N/A - electronic driver aids not available for this era

💡 Technology Features

Audio System:

AM radio; optional AM/FM unit

Speakers:

Dash or door-mounted speaker

Electronic Aids:

N/A - not available for this era

Instrumentation:

Analog gauges with warning lamps for charging, oil and temperature

Wiring:

Complete wiring diagrams included in the manual

Troubleshooting:

Electrical troubleshooting procedures combined with diagrams

🔧 Maintenance

Engine Oil:

Change at regular intervals as listed in the manual's maintenance schedule

Spark Plugs:

Inspect and replace per the maintenance chart

Air Filter:

Inspect and replace per the maintenance chart

General Schedule:

Scheduled maintenance tables included in the Service Information section

Engine Oil:

Refer to the manufacturer specification chart in the manual

Coolant:

Refer to the manufacturer specification chart in the manual

Transmission Fluid:

Refer to the manufacturer specification chart in the manual

Brake Fluid:

Refer to the manufacturer specification chart in the manual

Engine:

Rotary apex seal and rotor housing wear are the primary long-term concerns

Ignition:

Distributor cap, rotor and spark plug wear

Cooling:

Radiator and water pump wear; coolant leaks

Brakes:

Brake shoe and lining wear; hydraulic component condition

Suspension:

Bushings, shocks and steering linkage wear

📚 Vehicle History

Manufacturer:

Mazda Motor Corporation (Toyo Kogyo Co., Ltd.)

Rotary Heritage:

Mazda was the first manufacturer to mass-produce Wankel rotary engines, beginning with the Cosmo in 1967

Introduction:

The Rotary Pickup (REPU) was introduced for the 1974 model year as a rotary-engine variant of Mazda's B-series pickup

Production Run:

Produced for the 1974 through 1977 model years

Discontinuation:

Discontinued after 1977; a limited total number were built, making it a collectible

Market:

Primarily sold in North America

Assembly:

Hiroshima, Japan

🏆 Awards & Recognition

Industry Recognition:

Recognized as the only mass-produced rotary-engine pickup truck sold in the United States

Collector Status:

Considered a collectible vehicle among rotary and Mazda enthusiasts

Awards:

N/A - no major period awards documented for this model year

Manual Type:

Factory service manual, the same reference used by dealership technicians

Value:

Sought after by owners because factory information for older vehicles becomes difficult to find