🏷️ Basic Information

Make:

Porsche

Model:

911

Year:

1984

Internal Model Code:

911 G-Series (pre-impact bumper to impact bumper transition)

Chassis Code:

911

👋 Introduction

Market Positioning:

Iconic sports car, considered a benchmark in performance and handling during its era.

Key Competitors 1984:

Ferrari 308/328 GTB/GTS, Chevrolet Corvette C4, Lotus Esprit

Distinctive Attributes:

Rear-engine layout, air-cooled engine, robust build quality, excellent driving dynamics, aerodynamic styling.

G Series Significance:

This year marks the transition for the 911 to a more refined and integrated design compared to earlier impact-bumper models, featuring revised safety standards and updated powertrain management.

📋 Manual Details

Primary Coverage:

Complete Repair and Service Procedures for 1984 Porsche 911

Secondary Coverage:

Maintenance, Troubleshooting, Specifications, Diagnostics

Estimated Page Count:

1000+

Type:

Factory Service Repair Manual

Language:

English

Format:

Printed Book

📖 Manual Coverage

Engine:

3.2L Naturally Aspirated Flat-Six (M930/20, M930/21, M930/25 variations)

Cooling System:

Air-cooled engine cooling, blower, oil cooler systems

Fuel System:

Bosch Motronic L-Jetronic Fuel Injection, fuel pumps, lines, injectors

Ignition System:

Electronic ignition, distributor, coils, spark plugs

Transmission:

G50 5-Speed Manual Transaxle (introduction for this year)

Clutch:

Hydraulic clutch system, clutch disc, pressure plate, release bearing

Brakes:

Front and rear disc brakes (ventilated rotors), brake hydraulics, parking brake

Suspension:

Front and rear independent suspension, torsion bars, shock absorbers, anti-roll bars

Steering:

Rack and pinion steering, steering column, steering wheel

Electrical System:

12V system, battery, alternator, starter, wiring diagrams, fuses, relays

Lighting:

Headlights, taillights, interior lighting, fog lights

Bodywork:

Body panel removal/installation, doors, hood, trunk, bumpers, windows, convertible top (if applicable)

Interior:

Seats, dashboard, trim, HVAC controls

HVAC:

Heating, Ventilation, and Air Conditioning (HVAC) system service

Maintenance:

Oil changes, filter replacements, spark plug changes, fluid checks, belt adjustments

Disassembly Assembly:

Complete engine, transmission, suspension, brake, and electrical component overhaul

Repair:

Component-level repair and replacement for all systems

Troubleshooting:

Diagnostic charts and procedures for common issues and failures

Installation:

Installation guides for various components and accessories

Specifications Data:

Torque values, clearances, fluid capacities, electrical schematics

Depth:

Comprehensive; covers basic maintenance to full engine/transmission rebuilds and detailed electrical diagnostics.

📊 Manual Specifications

File Format:

N/A (Printed)

Print Quality:

Professional-grade printing, clear diagrams and text.

Binding Type:

Professional perfect binding or spiral binding (common for service manuals).

Paper Type:

Durable, high-quality paper stock suitable for workshop environments.

⚙️ Engine Specifications

Engine Type:

Naturally Aspirated Flat-Six (Boxer)

Engine Code Variants:

M930/20 (Carrera), M930/21 (Carrera Targa), M930/25 (Carrera Cabriolet)

Displacement:

3.2 Liters (3164 cc)

Horsepower Est:

207 hp @ 5900 rpm (European spec); 197 hp @ 6000 rpm (US spec)

Torque Est:

199 lb-ft @ 4500 rpm (European spec); 190 lb-ft @ 4500 rpm (US spec)

Injection Type:

Bosch Motronic L-Jetronic Electronic Fuel Injection

Fuel Type:

Unleaded Gasoline (Premium)

Cooling Method:

Air-cooled with integrated oil cooling

🔧 Transmission

Type:

G50 5-Speed Manual Transaxle

Type:

None (G50 was standard for 1984 onwards)

Gear Ratios:

Detailed in manual (specific ratios vary by model variant).

Clutch Type:

Hydraulically actuated single dry plate clutch.

Transmission Fluid Type:

GL-5 Gear Oil (e.g., Mobilube HD 75W-90, Porsche Part No. 000 043 205 27)

📐 Dimensions

Length:

Approx. 4251 mm (167.4 in)

Width:

Approx. 1650 mm (65.0 in)

Height:

Approx. 1310 mm (51.6 in)

Curb Weight:

Approx. 1210-1280 kg (2668-2822 lbs) depending on body style.

Wheelbase:

2271 mm (89.4 in)

🛡️ Safety Features

Crash Test Information:

Era-specific safety standards, not typically rated by modern NHTSA/Euro NCAP.

Brake Assist:

Four-wheel disc brakes (ventilated front/rear), dual-circuit hydraulic system.

Traction Control:

None standard.

Airbags:

None standard.

Seatbelts:

Three-point inertia-reel seatbelts.

Chassis Structure:

Reinforced chassis and body structure for occupant protection.

💡 Technology Features

Audio System:

Factory-installed AM/FM radio with cassette player (options varied).

ABS:

Anti-lock Braking System (ABS) was an optional extra for 1984 models.

Connectivity Features:

None.

🔧 Maintenance

Oil Change Interval:

Approximately 10,000 km (6,000 miles) or annually, whichever comes first (refer to manual for precise details).

Major Service:

Engine tune-up, valve adjustment, spark plug replacement typically every 20,000-30,000 km.

Engine Oil Type:

High-performance synthetic or semi-synthetic oil, viscosity 15W-50 or 20W-50 recommended (e.g., Mobil 1 15W-50, Castrol GTX 20W-50, Porsche Part No. 000 043 203 47 for 20W-50).

Engine Oil Capacity:

Approx. 8.5 - 9.0 Liters (with filter change).

Brake Fluid Type:

DOT 4 Brake Fluid.

Coolant Type:

N/A (Air-cooled).

Common Wear Items:

Valve stem seals, chain tensioners (early models), fuel lines, rear main seal (RMS) leaks, clutch release bearing.

Engine Specific:

Overheating in extreme conditions due to air-cooling limitations, oil consumption can increase with mileage.

📚 Vehicle History

Brand Legacy:

Porsche AG, a German manufacturer renowned for high-performance sports cars, founded by Ferdinand Porsche.

G Series Era:

The 911 G-Series (1974-1989) represented a significant evolution, adapting to safety regulations and market demands while retaining the iconic 911 silhouette and rear-engine layout.

1984 Updates:

Introduction of the G50 transmission, revised engine management with Motronic, and updated styling elements. This year is often seen as a refinement of the G-Series, bridging the gap to later models.

Production Location:

Stuttgart, Germany

🏆 Awards & Recognition

Automotive Icons:

Consistently ranked among the greatest sports cars of all time by numerous automotive publications.

Performance Benchmark:

Set the standard for handling and driver engagement for decades.