🏷️ Basic Information Identification Make: Porsche Model: 928 Year: 1987 Generation Generation Name: Second Generation (928 S4) Codes Chassis Code: 928 👋 Introduction Market Position Market Position: The Porsche 928 was a groundbreaking luxury grand tourer positioned as a flagship model, offering a blend of performance, comfort, and advanced technology. It aimed to appeal to buyers seeking a sophisticated and powerful sports car with practical usability. Competitive Analysis Competitors: Competed with high-end European GTs and luxury sports cars such as the Jaguar XJS, BMW 8 Series (later), Aston Martin models, and top-tier Mercedes-Benz coupes of its era. Its front-engine, rear-drive transaxle layout was a distinctive characteristic. Key Features Key Features: Rear-mounted transaxle for optimal weight distribution, V8 engine, advanced (for its time) technology and comfort features, distinctive aerodynamic styling, spacious interior for a sports car. 📋 Manual Details Coverage Areas Coverage Areas: Comprehensive repair and service for the 1987 Porsche 928 Page Count Page Count: Estimated 1500-2000+ pages (typical for a full factory service manual of this era) Manual Type Manual Type: Factory Service Manual / Repair Manual / Workshop Manual Language Language: English Format Format: PDF (Digital Download) 📖 Manual Coverage Systems Covered Systems Covered: Engine (4.7L V8), Fuel System, Ignition System, Cooling System, Lubrication System, Exhaust System, Clutch, Transmission (5-speed Manual & Automatic), Drive Axles, Suspension (Front & Rear), Steering, Brakes (ABS), Wheels & Tires, Body & Chassis, Electrical System (Wiring Diagrams, ECUs, Sensors), HVAC, Interior & Exterior Trim, Safety Systems, Diagnostic Procedures Body And Chassis: Includes procedures for body panel alignment, door, hood, and trunk mechanisms, interior trim removal and installation, bumper systems, and corrosion prevention. Procedures Included Procedures Included: Detailed step-by-step repair and maintenance procedures, disassembly and assembly, troubleshooting guides, diagnostic flowcharts, torque specifications, fluid capacities, wiring diagrams, component testing, preventative maintenance schedules, specifications and data Diagnostic Procedures: Detailed diagnostic procedures for engine, transmission, brakes, and electrical systems, including troubleshooting charts and common fault identification. Technical Depth Technical Depth: Factory-level technical depth, suitable for professional technicians and advanced DIY enthusiasts. Covers everything from basic fluid changes to complete engine and transmission overhauls, complex electrical diagnostics, and bodywork repairs. Manual Type Manual Purpose: Designed for both preventative maintenance and corrective repairs, enabling owners and technicians to maintain optimal performance and safety. 📊 Manual Specifications File Format File Format: PDF Print Quality Print Quality: Full Printable (High Resolution for clarity of diagrams and text) Binding Type Binding Type: N/A (Digital Download) Paper Type Paper Type: N/A (Digital Download) Accessibility Zoom Capability: YES (Zoom In/Out for detailed inspection of diagrams and text) Delivery Delivery Method: Instant Download Requirements Software Requirements: Adobe PDF Reader, WinZip (for potential compressed files) Compatibility Operating Systems: All Versions of Windows & Mac ⚙️ Engine Specifications Primary Engine Engine Type: V8, Naturally Aspirated Displacement: 4.7 Liters (4664 cc) Bore X Stroke: 90.0 mm x 92.8 mm Compression Ratio: 10.0:1 Performance Horsepower Est: Approximately 280-300 hp (varies slightly by market/specific tuning) Torque Est: Approximately 300-325 lb-ft Fuel System Fuel Delivery: Bosch L-Jetronic Fuel Injection Engine Management Engine Control Unit: Bosch Motronic Ignition System: Electronic Ignition with distributor and coil Cooling System Coolant Type: Porsche specified Type 23 (G12) or equivalent ethylene glycol-based antifreeze (typically a 50/50 mix with distilled water) 🔧 Transmission Standard Transmission Type: 5-Speed Manual Transaxle Optional Transmission Type: 3-Speed Automatic Transaxle (Tiptronic not yet available for this model year) Features Transaxle Layout: Rear Transaxle (Engine front, Transmission rear) Gear Ratios: Specific gear ratios provided within the manual for both manual and automatic transmissions. Fluid Specifications Manual Transmission Fluid: API GL-4 SAE 75W-90 or 80W-90 Gear Oil Automatic Transmission Fluid: Dexron II / Mercon equivalent 📐 Dimensions Exterior Length: 4655 mm (183.3 in) Width: 1785 mm (70.3 in) Height: 1280 mm (50.4 in) Wheelbase: 2430 mm (95.7 in) Front Track: 1510 mm (59.4 in) Rear Track: 1520 mm (59.8 in) Front Overhang: 990 mm (39.0 in) Rear Overhang: 1215 mm (47.8 in) Weights Curb Weight: Approximately 1550-1650 kg (3417-3638 lbs), depending on transmission and options Gross Vehicle Weight Rating: Approximately 2100 kg (4630 lbs) 🛡️ Safety Features Ratings Crash Test Ratings: No standardized crash test ratings like modern vehicles (NHTSA, Euro NCAP) were prevalent for this era. However, Porsche vehicles of this period were known for robust construction. Active Features Active Safety Features: Anti-lock Braking System (ABS), Power-assisted steering Passive Features Passive Safety Features: Three-point seat belts, Crumple zones, Reinforced passenger cell, Energy-absorbing steering column, Driver and passenger airbags (optional, becoming more common in late 80s) 💡 Technology Features Infotainment Infotainment System: Period-appropriate AM/FM stereo radio with cassette player, optional CD changer. Speaker System: Integrated speaker system, often with amplifier Driver Assistance Driver Assistance Features: Cruise control, ABS Connectivity Connectivity Features: N/A (No modern connectivity features like Bluetooth or USB) 🔧 Maintenance Service Intervals Oil Change Interval: Typically every 5,000-7,500 miles or annually, whichever...