Target Market:
Enthusiasts and professional mechanics working on classic air-cooled Porsches
Value Proposition:
Provides the definitive factory-level information for authentic restoration and repair, crucial for preserving value.
Authenticity:
Official Porsche factory documentation ensures accuracy and completeness.
Comprehensiveness:
Covers all aspects of the vehicle's mechanical and electrical systems.
Usability:
Organized sequentially for ease of following repair procedures.
Engine:
Yes, comprehensive repair and overhaul procedures
Fuel System:
Yes, including fuel injection (mechanical) and carburetors
Ignition System:
Yes, including distributor, coil, and spark plugs
Cooling System:
Yes, air-cooled engine specifics
Transmission:
Yes, manual transmission repair and adjustment
Clutch:
Yes, including adjustment and replacement
Brakes:
Yes, hydraulic system, discs, and calipers
Suspension:
Yes, front and rear suspension components, alignment
Steering:
Yes, steering rack and linkage
Electrical System:
Yes, wiring diagrams, component testing
Bodywork And Chassis:
Yes, basic adjustment and repair procedures
Interior Trim:
Yes, removal and installation of interior components
Disassembly:
Detailed step-by-step procedures
Assembly:
Detailed step-by-step procedures
Repair:
Comprehensive repair instructions for all major systems
Installation:
Instructions for component installation and replacement
Removal:
Instructions for component removal
Adjustment:
Procedures for adjustments and calibrations
Checking And Testing:
Diagnostic procedures and specifications
Troubleshooting:
Likely included, given the 'repair' focus
Level Of Detail:
Comprehensive, suitable for engine rebuilds and complex repairs
Diagnostics:
Detailed diagnostic procedures and specifications
Torque Specifications:
Essential torque values for critical fasteners
Tolerances:
Component and assembly tolerances for precision work
Wiring Diagrams:
Inclusion of detailed electrical schematics is expected
Media Type:
Physical book (based on typical sales of such manuals)
Binding Type:
Likely spiral-bound or perfect-bound for durability
Paper Type:
Durable, matte finish paper suitable for workshop use
Print Quality:
High-quality printing for clear diagrams and text
Page Count:
Estimated 500-800 pages (typical for comprehensive factory manuals of this era)
Engine Type:
Air-cooled, horizontally opposed (flat) six-cylinder
Displacement:
2.4 Liters (2341 cc)
Bore X Stroke:
84 mm x 70.4 mm
Compression Ratio:
8.5:1 or 7.5:1 (depending on variant)
Horsepower:
Approx. 130-210 HP (depending on 911 model: T, E, S)
Torque:
Approx. 190-240 Nm (depending on model)
Fuel Delivery:
Bosch mechanical fuel injection (CIS for E/S models) or carburetors (T models)
Fuel Type:
Unleaded gasoline (premium)
Oil Capacity:
Approx. 8 Liters (with filter)
Oil Specification:
Porsche recommended viscosity grade (e.g., SAE 20W-50 or SAE 20W-40 depending on climate)
Type:
Porsche Type 915 5-speed manual transaxle
Type:
None offered for 1972 model year
Gear Ratios:
Specific ratios for 1st-5th gears and reverse vary by model (T, E, S)
Transmission Fluid Type:
Specific manual transmission fluid (e.g., GL-4 rated)
Wheelbase:
Approx. 2271 mm (89.4 inches)
Length:
Approx. 4163 mm (163.9 inches)
Width:
Approx. 1650 mm (65.0 inches)
Height:
Approx. 1320 mm (52.0 inches)
Curb Weight:
Approx. 1080-1120 kg (2380-2470 lbs) depending on model
Gvw:
Not explicitly defined, but designed for performance driving
Oil Change:
Recommended every 5,000 km (3,000 miles) or annually.
Major Service:
Comprehensive check and potential replacement of wear items typically every 20,000-30,000 km (12,000-18,000 miles).
Valve Adjustment:
Essential for air-cooled engines, usually every 10,000-20,000 km.
Engine Oil:
SAE 20W-50 or 20W-40 (refer to manual for specific climate recommendations).
Brake Fluid:
DOT 3 or DOT 4 (refer to manual for specific type).
Transmission Fluid:
Porsche recommended gear oil (e.g., GL-4, viscosity to be specified in manual).
Oil Leaks:
Common in older Porsches due to aged seals and gaskets.
Engine Case Cracks:
Can occur, especially with early magnesium crankcases, though less prevalent in 1972 compared to earlier models.
Fuel Injection System:
Bosch CIS can require specialized knowledge for tuning and repair.
Heat Exchangers:
Can rust and leak exhaust gases, requiring replacement.
Bushings And Wear Items:
Rubber suspension and steering bushings degrade over time, impacting handling.
Porsche Legacy:
Porsche is renowned for its sports car engineering and racing heritage.
911 Generation:
This manual covers the 'F-Series' or 'G-Series' early 911, specifically the 1972 model year with the larger 2.4L engine.
Key Changes For 1972:
Introduction of the 2.4L engine across the range (911T, 911E, 911S), with oil tank moved from engine bay to chassis (underneath fuel tank) for better weight distribution.
Production Era:
1964-1973 (for early 911s, 1972 is a key year in this generation)
Manufacturing Location:
Stuttgart, Germany
