🏷️ Basic Information Identification Make: Porsche Model: 928 Year: 1979 Market Segment: Luxury Grand Tourer Codes Internal Model Code: Type 928 👋 Introduction Market Position Target Audience: Porsche 928 owners, DIY enthusiasts, and independent mechanics interested in technical details. Competitive Analysis Advantage: Instant download availability, cost-effectiveness compared to printed manuals, focus on critical maintenance tasks. Key Features Content Quality: Technical details, diagrams, assembly/disassembly instructions, cleaning, repairing, and maintenance information. Knowledge Transfer: Provides know-how from skilled mechanics. Accessibility: Immediate access upon purchase. 📋 Manual Details Coverage Areas Primary Focus: Timing Belt and Water Pump Replacement Additional Systems: Engine mechanicals, cooling system, general maintenance and repair procedures Page Count Estimated Pages: Not explicitly stated, but implies comprehensive coverage for the specified tasks. Manual Type Type: Service Manual / Repair Manual Language Language: English (implied by product description and target audience) Format Format: Digital Download (PDF) 📖 Manual Coverage Systems Covered Engine Mechanicals: Detailed procedures for timing belt removal, installation, tensioning, and water pump replacement. Cooling System: Specifics on water pump operation, gasket replacement, and coolant flushing procedures. Maintenance: General maintenance procedures relevant to engine and cooling system upkeep. Electrical System: May include diagrams or procedures related to sensors or components directly tied to the timing belt or water pump. Procedures Included Timing Belt Replacement: Step-by-step instructions, including proper alignment, tensioning, and inspection of related components. Water Pump Replacement: Detailed guide for removal, installation, and sealing of the water pump. Component Diagnosis: Troubleshooting common issues related to the timing belt and water pump systems. Fluid Management: Instructions for draining and refilling the cooling system. Technical Depth Depth: Detailed, hands-on repair and maintenance for specific critical engine components. Information Source: Directly from manufacturer technical details. 📊 Manual Specifications File Format File Type: PDF Searchability: Likely searchable text, enabling quick access to information. Print Quality Print Capability: Printable sections allowed by the digital format. Binding Type Binding: N/A (Digital Download) Paper Type Paper Type: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Type: V8 (typically) Engine Displacement: Early models (1979) typically 4.5 liters (4474 cc) Engine Code Family: M28 Performance Horsepower Approx: Around 240-250 hp for early models. Torque Approx: Around 260-270 lb-ft for early models. Fuel System Fuel Injection: Bosch K-Jetronic (CIS) Timing Drive Timing Belt System: Dual overhead camshafts (DOHC) driven by a toothed timing belt system. Critical for engine valve timing. 🔧 Transmission Standard Type: Manual (5-speed transaxle) Optional Type: Automatic (3-speed or 4-speed, depending on market and year) Features Layout: Rear transaxle design, contributing to front-engine, rear-wheel drive layout and weight distribution. 📐 Dimensions Exterior Body Style: 2-door Coupe Wheelbase: Approx. 2,600 mm (102.4 in) Length: Approx. 4,650 mm (183.1 in) Width: Approx. 1,775 mm (69.9 in) Height: Approx. 1,280 mm (50.4 in) Weights Curb Weight Approx: Around 1,550-1,650 kg (3,417-3,638 lbs) 🛡️ Safety Features Ratings Crash Test Data: Limited publicly available standardized crash test data from the era. Porsche typically focused on robust construction. Active Features Brakes: Four-wheel disc brakes, often with ventilated front discs. Passive Features Seatbelts: Three-point inertia reel seatbelts. Construction: Reinforced safety cage, crumple zones. 💡 Technology Features Infotainment Audio System: Factory-equipped stereo systems, often with integrated cassette players. Driver Assistance ABS: Anti-lock Braking System (ABS) became available on later models, but may not have been standard on all 1979 variants. Connectivity Original Connectivity: Primarily analog systems, no digital connectivity features. 🔧 Maintenance Service Intervals Timing Belt Replacement: Typically recommended every 40,000-60,000 miles or 4-5 years, due to the critical nature of belt integrity. Water Pump Inspection: Recommended with every timing belt service or as needed based on coolant leaks or bearing noise. Fluid Specifications Coolant Type: Typically a glycol-based antifreeze, e.g., G11 or equivalent, mixed with distilled water. Refer to specific Porsche recommendations. Engine Oil Type: High-quality multi-viscosity oil, e.g., 15W-50 or 20W-50 depending on climate and engine condition. Refer to manual for specific viscosity and API service classification. Known Issues Timing Belt Failure: Catastrophic engine damage can occur if the timing belt breaks or slips, leading to piston-to-valve contact. Water Pump Leaks: Common issue over time due to aging seals, leading to coolant loss. Cooling System Overheating: Can be caused by a failing water pump, clogged radiator, or thermostat issues. 📚 Vehicle History Brand Heritage Brand Focus: Porsche is renowned for its sports car engineering and racing heritage. Model Evolution Segment Introduction: The 928 was conceived as a flagship, high-performance, luxury grand tourer, intended to eventually succeed the 911. Design Philosophy: Featured a front-engine, rear-wheel drive layout with a transaxle, and a V8 engine, a departure from Porsche's traditional rear-engine, flat-six configuration. Production Production Years: 1978-1995 Initial Market Launch: 1978 (as a 1979 model year vehicle in North America) 🏆 Awards & Recognition Recognitions European Car Of The Year: The Porsche 928 was the European Car of the Year in 1978, highlighting its innovative...