Mazda MX5 MX-5 1990 Full Service Repair Manual

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🏷️ Basic Information Identification Make: Mazda Model: MX-5 Model Generation Nickname: NA generation (First Generation) Model Year: 1990 Codes Chassis Code: NA 👋 Introduction Market Position Segment: Lightweight two-seater convertible...

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标签: 1990 Car Cars Mazda Misc MX-5 MX5

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Description

🏷️ Basic Information

Identification

Make:

Mazda

Model:

Model Generation Nickname:

NA generation (First Generation)

Model Year:

Codes

Chassis Code:

👋 Introduction

Market Position

Segment:

Lightweight two-seater convertible sports car

Target Audience:

Enthusiast drivers, DIY mechanics, restoration specialists

Competitive Analysis

Key Competitors Era:

Lotus Elan, Fiat Spider, MG MGB (though MX-5 predates the demise of MGB but represents a spiritual successor)

Key Features

Philosophy:

Jinba Ittai ('rider and horse are one') driving dynamics, affordable fun, reliable sports car

Design:

Pininfarina-influenced styling, pop-up headlights, compact and lightweight construction

Driving Experience:

Nimble handling, direct steering feedback, balanced chassis, rear-wheel drive

📋 Manual Details

Coverage Areas

Primary Coverage:

Full Service, Repair, Maintenance, Rebuild, Refurbish, Restoration

Page Count

Estimated Page Count:

Manual Type

Type:

Factory Service Manual / Repair Manual

Additional Types:

Includes diagnostic procedures, wiring diagrams, exploded views, and component specifications.

Language

Language:

English

Format

Format:

PDF Download

📖 Manual Coverage

Systems Covered

Engine:

1.6L DOHC (B6ZE) engine disassembly, assembly, troubleshooting, component diagnostics

Engine Management:

Fuel Injection System (EFI), Ignition System, Emissions Control System (EGR, EVAP), Sensor diagnostics

Transmission:

5-speed manual transmission (M5) overhaul, clutch system, driveline components

Suspension:

Front and Rear independent suspension (double wishbone), shock absorbers, springs, bushings, alignment specifications

Brakes:

Front disc brakes, rear disc brakes (on most models), brake system hydraulics, ABS (if equipped), parking brake

Steering:

Rack and pinion steering, power steering system (if equipped), steering column, wheel alignment

Electrical System:

Battery, charging system (alternator, starter), lighting (headlights, taillights, interior), horn, fuses, relays, wiring diagrams

Body And Chassis:

Body panel removal/installation, interior trim, convertible top system maintenance, frame and structural components

HVAC:

Heating, ventilation, and air conditioning (HVAC) system diagnostics and repair

Procedures Included

Maintenance:

Routine maintenance checks, fluid changes (oil, coolant, brake fluid, transmission fluid), filter replacements, spark plug replacement

Repair:

Engine rebuild, transmission overhaul, suspension component replacement, brake caliper rebuild, electrical component repair, bodywork repair

Troubleshooting:

Diagnostic charts, common fault identification, symptom-based troubleshooting guides

Diagnostics:

Detailed diagnostic steps for all major systems, including fuel trim analysis, ignition timing checks, sensor data interpretation

Technical Depth

Depth:

Comprehensive from basic fluid changes to complete engine and transmission rebuilds, including detailed torque specifications and special tool requirements

📊 Manual Specifications

File Format

File Type:

Digital (PDF)

Searchability:

Text-searchable for quick information retrieval

Print Quality

Print Readability:

High resolution, suitable for printing specific sections or the entire manual

Binding Type

Digital Binding:

N/A (Digital Download)

Paper Type

Digital Paper Type:

N/A (Digital Download)

⚙️ Engine Specifications

Primary Engine

Engine Code:

Engine Type:

Inline-4, naturally aspirated

Displacement:

1.6 Liters (1598 cc)

Valvetrain:

DOHC (Double Overhead Camshaft), 16 valves

Bore X Stroke:

78.0 mm x 83.6 mm

Compression Ratio:

9.0:1

Performance

Horsepower:

113 hp @ 6500 rpm (SAE Net)

Torque:

100 lb-ft @ 5000 rpm (SAE Net)

Fuel System

Induction:

Electronic Fuel Injection (EFI)

Fuel Type:

Unleaded Gasoline (87 Octane Recommended)

Fuel Pump Pressure:

Approx. 38-44 psi

🔧 Transmission

Standard

Type:

5-speed Manual Transmission (M5)

Optional

Type:

4-speed Automatic Transmission (optional, less common)

Features

Manual Gear Ratios:

1st: 3.136, 2nd: 1.842, 3rd: 1.308, 4th: 1.000, 5th: 0.815, Reverse: 3.112

Final Drive Ratio:

4.300:1

Transmission Fluid Type:

Mazda GL-5 Gear Oil, API Service Classification GL-5, SAE 75W-90

Transmission Fluid Capacity:

Approx. 2.1 US Quarts (2.0 Liters)

📐 Dimensions

Exterior

Length:

157.3 inches (4000 mm)

Width:

66.1 inches (1680 mm)

Height:

48.8 inches (1240 mm) with soft top up

Wheelbase:

89.2 inches (2265 mm)

Ground Clearance:

5.5 inches (140 mm)

Weights

Curb Weight:

2150 - 2250 lbs (975 - 1020 kg), depending on options

Gross Vehicle Weight Rating Gvwr:

Approx. 2700 lbs (1225 kg)

🛡️ Safety Features

Ratings

Crash Test Performance:

No specific NHTSA/IIHS ratings for 1990 model year as standards were less stringent; designed with crumple zones and safety cage.

Active Features

Brakes:

Front ventilated discs, rear solid discs (standard on most models); optional Anti-lock Braking System (ABS) available on some trims.

Suspension Handling:

Low center of gravity, balanced weight distribution contributing to active safety through handling.

Passive Features

Airbags:

Driver's side airbag (optional on early models, became standard later in the generation).

Seatbelts:

Three-point inertia-reel seatbelts.

Rollover Protection:

Reinforced A-pillars and B-pillars, integrated roll bar behind seats.

💡 Technology Features

Infotainment

Audio System:

Factory AM/FM stereo with cassette player, optional CD player. Basic speaker setup.

Driver Assistance

Cruise Control:

Available on higher trim levels.

Connectivity

Connectivity Features:

Minimal; primarily focused on the driving experience rather than digital integration. Auxiliary inputs for aftermarket audio devices may exist.

🔧 Maintenance

Service Intervals

Engine Oil Change:

Every 5,000 miles or 6 months, whichever comes first.

Oil Filter Replacement:

At every oil change.

Air Filter Replacement:

Every 15,000 miles or 12 months.

Spark Plug Replacement:

Every 30,000 miles (NGK BP5EYA or equivalent recommended).

Coolant Flush:

Every 30,000 miles or 24 months.

Brake Fluid Flush:

Every 24 months or 30,000 miles.

Fluid Specifications

Engine Oil Type:

API SG, ACEA A2/B2 rated, SAE 10W-30 or 10W-40 (synthetic recommended for improved performance).

Engine Oil Capacity:

3.7 US Quarts (3.5 Liters) with filter change.

Coolant Type:

Ethylene glycol-based antifreeze, meeting Mazda specification. Mix 50/50 with distilled water.

Brake Fluid Type:

DOT 3 or DOT 4 brake fluid.

Known Issues

Common Wear Items:

Radiator (prone to leaks), clutch master cylinder, rear brake caliper pistons (seizing), window regulators, soft top wear.

Engine Specific:

Oil seal leaks (rear main seal, valve cover gasket), timing belt replacement interval critical (50,000-60,000 miles), cam angle sensor failure.

Chassis Rust:

Prone to rust in floor pans, rocker panels, and rear fender arches, especially in humid or salted environments.

Parts Info

Timing Belt Part Number:

OEM Mazda: FE01-12-201 (check for specific revision)

Oil Filter Part Number:

OEM Mazda: B6Y1-14-302 (or equivalent like Fram PH3506, Wix 51348)

📚 Vehicle History

Brand Heritage

Brand Focus:

Mazda historically produced lightweight, agile sports cars (e.g., Cosmo Sport, RX-7 predecessor).

Model Evolution

Genesis:

Conceived as a modern interpretation of the classic British roadster, prioritizing driving purity and affordability. Developed by Mazda's Tom Matano and engineered in Japan.

First Generation Launch:

Introduced in 1989 for the 1990 model year.

Production

Manufacturing Location:

Hofu, Yamaguchi Prefecture, Japan

Production Years Na:

1989-1997

🏆 Awards & Recognition

Recognitions

Car And Driver 10Best:

Named to Car and Driver's 10Best list for multiple consecutive years (1990-1992).

Auto Motor Sport Editors Choice:

Frequently cited by automotive publications as a benchmark for affordable sports car handling.

Motoring Journalism Accolades:

Praised for its purity of driving, value for money, and accessible performance.