Porsche 911 1973 Full Service Repair Manual

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🏷️ Basic Information Identification Make: Porsche Model: 911 Year: 1973 Codes Chassis Code: 911 (G-Series) 👋 Introduction Market Position Heritage: The 1973 911 represents a significant evolution of the iconic...

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类型: Car

斯库: 462035

标签: 1973 911 Car Porsche

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Description

🏷️ Basic Information

Identification

Make:

Porsche

Model:

Year:

Codes

Chassis Code:

911 (G-Series)

👋 Introduction

Market Position

Heritage:

The 1973 911 represents a significant evolution of the iconic Porsche sports car, known for its purity of driving experience and performance.

Competitive Analysis

Era Competitors:

Competed against other premium sports cars of its era, offering a distinct rear-engine, air-cooled driving dynamic.

Key Features

Driving Experience:

Renowned for its handling, steering feel, and distinctive flat-six engine sound.

Mechanical Purity:

Characterized by its mechanical complexity and analog feel, appealing to enthusiasts who appreciate direct interaction with their vehicle.

📋 Manual Details

Coverage Areas

Primary Focus:

Full Service, Repair, Maintenance, Rebuild, Refurbishment, Restoration

Page Count

Estimated Pages:

Approximately 500+

Manual Type

Type:

Factory Service Manual / Workshop Manual

Language

Language:

English

Format

Format:

Print (implied by 'manual')

📖 Manual Coverage

Systems Covered

Engine:

Detailed breakdown of 2.4L flat-six (911/06, 911/07, 911/08, 911/09 engines), including lubrication, cooling, fuel injection (MFI), ignition, and emissions control systems.

Transmission:

Coverage for the 915 5-speed manual transaxle, including clutch, gears, synchronizers, and final drive.

Brakes:

Front and rear disc brake system inspection, service, and repair, including master cylinder, calipers, rotors, and brake lines.

Suspension Steering:

Detailed information on front independent suspension (torsion bar), rear semi-trailing arms, shock absorbers, steering rack, and alignment procedures.

Electrical:

Comprehensive schematics and troubleshooting for the 12-volt electrical system, including lighting, instrumentation, starter, alternator, ignition switch, and ancillary components.

Fuel System:

In-depth coverage of the Bosch Mechanical Fuel Injection (MFI) system, including fuel pumps, pressure regulators, air flow meter, injector maintenance, and adjustment procedures.

Exhaust System:

Information on muffler, catalytic converter (where applicable by market), and exhaust manifold service.

Body Chassis:

Body panel repair, rust prevention, door and window mechanisms, interior trim, and chassis component inspection.

Procedures Included

Maintenance:

Oil changes, filter replacements, spark plug service, air filter service, belt tension adjustments, and general lubrication points.

Repair:

Engine overhaul (piston, cylinder, valve service), transmission rebuild, brake caliper rebuild, suspension component replacement, and electrical component repair.

Troubleshooting:

Systematic diagnosis of common issues, including engine performance problems, starting issues, electrical faults, and braking system irregularities.

Rebuild Refurbish:

Detailed instructions for complete engine and transmission disassembly, inspection, and reassembly.

Technical Depth

Depth:

Comprehensive: Covers everything from routine maintenance to full engine and transmission rebuilds, including specialized tools and torque specifications.

📊 Manual Specifications

File Format

Digital Quality:

High-resolution scans, clear legibility, searchable text (if digitally delivered).

Print Quality

Paper Stock:

Durable paper stock suitable for workshop environments (e.g., laminated pages, heavy-duty paper).

Binding Type

Binding:

Professional binding (e.g., spiral bound, stitched and glued) for lay-flat usability.

⚙️ Engine Specifications

Primary Engine

Type:

Air-cooled, horizontally opposed (flat-six) boxer engine

Displacement:

2341 cc (2.4 Liters)

Bore X Stroke:

84.0 mm x 70.4 mm

Compression Ratio:

8.0:1 (standard)

Engine Variants:

911/06 (T), 911/07 (E), 911/08 (S), 911/09 (Carrera RS 2.7 - though RS is often a distinct model/year)

Performance

Horsepower T:

130 PS (96 kW) at 5,100 rpm

Horsepower E:

165 PS (121 kW) at 5,800 rpm

Horsepower S:

190 PS (140 kW) at 6,500 rpm

Torque S:

215 Nm (159 lb-ft) at 5,000 rpm

Fuel System

Injection System:

Bosch Mechanical Fuel Injection (MFI)

Fuel Type:

Premium Unleaded Gasoline (RON 98 recommended)

Cooling System

Type:

Air-cooled with oil cooler

🔧 Transmission

Standard

Type:

Porsche 915 5-speed manual transaxle

Optional

Type:

None for 1973 models (automatic Sportomatic was phased out for 911 models).

Features

Gear Ratios:

Varies by model (T, E, S), documented in manual.

Clutch:

Single dry plate diaphragm spring clutch.

📐 Dimensions

Exterior

Length:

4161 mm (163.8 in)

Width:

1610 mm (63.4 in)

Height:

1320 mm (52.0 in)

Wheelbase:

2271 mm (89.4 in)

Weights

Curb Weight T:

Approx. 1075 kg (2370 lbs)

Curb Weight S:

Approx. 1075 kg (2370 lbs)

Wheelbase:

2271 mm (89.4 in)

🛡️ Safety Features

Ratings

Crash Testing:

Modern crash safety standards were less prevalent. Focus on occupant protection through chassis design.

Active Features

Braking:

Four-wheel disc brakes, ventilated front discs (S model).

Passive Features

Seat Belts:

Standard 3-point seat belts.

Construction:

Unitary body construction with integrated safety cage elements.

💡 Technology Features

Infotainment

Radio:

Optional period-correct Blaupunkt or Becker radio systems, often with AM/FM reception.

Driver Assistance

Not available.

Airbags:

Not available.

Connectivity

Bluetooth Usb:

Not available (analog systems only).

🔧 Maintenance

Service Intervals

Oil Change:

Every 5,000 - 7,500 km (3,000 - 5,000 miles) or annually, whichever comes first.

Major Tune Up:

Every 15,000 - 20,000 km (9,000 - 12,000 miles) including spark plugs, points, valve adjustment, and MFI settings.

Fluid Specifications

Engine Oil:

SAE 20W-50 (e.g., Castrol GTX, Mobil 1 Synthetic - consult manual for specific grades and approvals).

Transmission Oil:

API GL-5, SAE 75W-90 or 80W-90 (e.g., Mobilube, Red Line).

Brake Fluid:

DOT 3 or DOT 4 high-temperature brake fluid.

Coolant:

N/A (Air-cooled engine).

Known Issues

Mfi Calibration:

Sensitivity of the Mechanical Fuel Injection system to proper calibration and maintenance.

Oil Leaks:

Common for air-cooled Porsches due to numerous sealing surfaces and heat cycles; requires regular inspection of engine seals and gaskets.

Tin Worm:

Potential for rust in floor pans, longitudinals, and battery areas due to age and moisture.

Engine Case Cracks:

Rare but possible on early magnesium engine cases due to thermal stress; requires careful inspection during engine rebuilds.

Clutch Release Bearing:

Wear on the clutch release bearing and associated components.

📚 Vehicle History

Brand Heritage

Legacy:

Porsche's long history of motorsport and performance engineering.

Model Evolution

G Series Introduction:

The 1973 model year marked the introduction of the 'G-Series' body shell with distinctive bellows-style bumpers, although the full G-series styling became more prominent in 1974.

Engine Development:

The 2.4L engine was an evolution from the earlier 2.2L units, offering increased displacement and power.

Production

Manufacturing Location:

Stuttgart-Zuffenhausen, Germany

🏆 Awards & Recognition

Recognitions

Automotive Icon:

Widely recognized as a classic sports car icon, celebrated for its design and driving dynamics.