🏷️ Basic Information Identification Make: Porsche Model: 911 Year: 1978 Chassis Code: 930 (for Carrera 3.0 and 3.2, Turbo models) Codes Engine Code Type: Internal Porsche Designation 👋 Introduction Market Position Segment: Luxury Sports Car Target Audience: Performance enthusiasts, collectors, Porsche owners requiring professional-level repair information Competitive Analysis Competitors Era: Ferrari 308 GTB/GTS, Jaguar XJS, Chevrolet Corvette C3 Key Features Performance Focus: Legendary handling and driving dynamics Design Heritage: Iconic silhouette evolved from earlier 911 generations Manual Utility: Authoritative resource for maintaining peak performance and originality 📋 Manual Details Coverage Areas Primary Focus: Mechanical and electrical systems repair and maintenance Secondary Focus: Bodywork adjustments and specifications Page Count Estimated Pages: Approx. 800-1200 (typical for comprehensive factory manuals of this era) Manual Type Type: Factory Service Manual / Workshop Manual Language Language: English Format Format: Likely printed manual (original factory documentation), may also exist in digital PDF format 📖 Manual Coverage Systems Covered Engine: Air-cooled flat-six (e.g., 3.0L, 3.2L for Carrera), fuel injection (K-Jetronic), ignition, cooling, lubrication Transmission: Manual transaxle (e.g., 915 series), clutch, driveshafts Brakes: Hydraulic system, disc brakes (front and rear), parking brake, ABS (if equipped on specific variants) Suspension: Torsion bar front suspension, trailing arm rear suspension, shock absorbers, steering system Electrical: Wiring diagrams, lighting, ignition system, charging system, starter, instruments, power windows, wipers Bodywork: Body panel removal/installation, door mechanisms, glass, interior trim Procedures Included Maintenance: Oil change, filter replacement, spark plug service, fluid checks, belt tensioning Repair: Engine overhaul, transmission rebuild, brake caliper service, suspension component replacement, electrical component diagnosis and repair Disassembly Assembly: Detailed step-by-step instructions for major component removal and reinstallation Troubleshooting: Diagnostic procedures for common and uncommon issues, fault codes (if applicable) Technical Depth Depth: Comprehensive: covers everything from basic adjustments to full engine and transmission rebuilds 📊 Manual Specifications File Format Digital Format: PDF (if digitized), typically high-resolution scans of original pages Print Quality Print Quality: Original factory print quality (clear text, legible diagrams) Binding Type Binding: Original: Spiral-bound or stitched hardbound; Digital: Accessible via PDF reader Paper Type Paper Type: Original: Heavyweight, matte paper for durability; Digital: N/A ⚙️ Engine Specifications Primary Engine Engine Type: Air-cooled, naturally aspirated flat-six boxer Displacement 2.7: 2687 cc (for 911 SC, Carrera 2.7) Displacement 3.0: 2994 cc (for 911 SC, Carrera 3.0) Displacement 3.2: 3164 cc (for 911 Carrera 3.2, introduced late 1983 model year, may have some 1978 relevance in terms of evolution) Performance Horsepower 911 Sc: 180 hp (approx. for US models), 204 hp (for European models) Horsepower Carrera 3.0: 200 hp Torque 911 Sc: 217 lb-ft (approx.) Torque Carrera 3.0: 263 Nm (approx.) Fuel System Fuel Injection Type: Bosch K-Jetronic CIS (Continuous Injection System) Fuel Grade: Unleaded premium gasoline (e.g., 91 octane or higher) Engine Management Ignition System: Electronic ignition with breakerless distributor 🔧 Transmission Standard Transmission Type: 5-speed manual transaxle (915 series) Optional Transmission Type: Automatic (Sportomatic or Tiptronic - rare for this specific year but a possibility for some markets/later models that influenced design) Features Clutch Type: Single dry plate, hydraulically operated Gear Ratios: Specific ratios detailed in manual based on model variant (e.g., 911 SC vs. Carrera) 📐 Dimensions Exterior Length: Approx. 4271 mm (168.1 in) for 911 SC Width: Approx. 1668 mm (65.7 in) for 911 SC Height: Approx. 1320 mm (52.0 in) for 911 SC Weights Curb Weight: Approx. 1120-1220 kg (2470-2690 lbs) for 911 SC Wheelbase: Approx. 2271 mm (89.4 in) Wheel Bolt Pattern: 5 x 130 mm 🛡️ Safety Features Ratings Crash Test Era: No standardized modern crash test ratings comparable to today's NCAP or IIHS Active Features Brakes: Four-wheel disc brakes, potentially with optional ABS on some later models or variants Steering: Rack and pinion steering Passive Features Seat Belts: Three-point inertia reel seat belts Body Structure: Reinforced chassis and safety cage inherent in Porsche design Fuel Tank: Protected fuel tank location 💡 Technology Features Infotainment Radio: Factory-installed or dealer-option radio (AM/FM, possibly cassette) Driver Assistance ABS: Optional on some models, not standard Connectivity Connectivity Features: None in the modern sense; primarily mechanical and basic electrical systems 🔧 Maintenance Service Intervals Oil Change Interval: Typically 3,000-5,000 miles or annually, per manual recommendation Major Service: As per manual, often involving valve adjustment, spark plug replacement, fuel filter, air filter replacement Fluid Specifications Engine Oil Type: Air-cooled specific formulation, e.g., SAE 20W-50 or 10W-30 (refer to manual for exact Porsche A40 or equivalent spec) Engine Oil Capacity: Approx. 9-10 liters (including oil cooler) Transmission Fluid Type: Gear oil, e.g., SAE 75W-90 or 80W-90 GL-4/GL-5 (check manual for specific type and friction modifiers) Brake Fluid Type: DOT 3 or DOT 4 brake fluid Known Issues Engine Tin Wear: Intercase bearing wear on early G-series, particularly with high mileage or aggressive use Fuel System Leaks: Aging fuel lines and injector seals can develop leaks Valve Adjustment: Requires periodic adjustment...