🏷️ Basic Information Identification Make: Porsche Model: 928 Model Years Covered: 1977-1995 Body Style: 2+2 Grand Tourer Coupe Codes Chassis Code: 928 Series 👋 Introduction Market Position Positioning: The Porsche 928 represented a significant departure for Porsche, aiming to be a comfortable, high-performance GT that could compete with luxury sedans while retaining sports car DNA. It was positioned as a premium, technologically advanced grand tourer. Competitive Analysis Competitors: Competed against vehicles like the Jaguar XJ-S, Aston Martin V8 Vantage, and later, the Ferrari 400/412 and BMW 8 Series. Key Features Unique Aspects: Front-engine, rear-wheel-drive transaxle layout for optimal weight distribution, V8 engine, advanced suspension (transaxle design also contributed to exceptional handling characteristics), and a high level of luxury and comfort for a sports car. Manual Value Proposition Value: An inexpensive way to keep the vehicle working properly, empowering owners to perform repairs and maintenance themselves and save on labor costs. 📋 Manual Details Coverage Areas Primary Coverage: All models and all engines within the 1977-1995 Porsche 928 range. Specific Systems: Engine, Brakes, Sunroof, Timing Belt, Wiring Diagrams, Suspension, Transmission, Air Conditioning, Front End, Alignment, Diagnostics, Fuel System, Electrical System, Bodywork, Interior Systems. Page Count Total Pages: > 3000 Manual Type Type: Official Service and Repair Manual Language Language: English Format File Format: PDF Delivery Method: Instant Download 📖 Manual Coverage Systems Covered Engine Mechanical: Engine overhaul and rebuilding, including detailed steps for disassembly, inspection, component replacement, and reassembly for all engine variants. Engine Performance: Engine performance tuning, troubleshooting, and optimization. Includes fuel system and ignition system analysis. Drivetrain: Transmission removal and installation, in-car servicing, U-joint and CV-joint service procedures, and drivetrain component diagnostics. Braking System: Comprehensive brake servicing procedures, including disc and caliper maintenance, fluid replacement, bleeding, and component diagnostics. Suspension Steering: Front end and alignment procedures and specifications, suspension component diagnosis and repair, including shocks, struts, and bushings. Electrical System: Complete wiring diagrams for all vehicle systems, including engine management, lighting, accessories, and diagnostic port locations. Climate Control: Air conditioning service, component identification, refrigerant capacities, charging procedures, and troubleshooting for climate control systems. Body And Interior: Sunroof operation and repair, interior trim removal and installation, and basic body panel repair guidance. Procedures Included Maintenance: Factory maintenance schedules and charts, routine service procedures, fluid checks and replacements, filter changes. Repair: Step-by-step repair instructions for all major vehicle systems, based on complete disassembly and reassembly. Diagnostics: Troubleshooting and diagnostics for all vehicle systems, including computer diagnostic trouble codes, diagnostic trouble tree charts, and general fault finding. Rebuilding: Engine and transmission rebuilding procedures with detailed instructions and specifications. Timing Belt: Timing belt replacement and service procedures, critical for maintaining engine integrity. Technical Depth Depth: Comprehensive technical depth, suitable for both the do-it-yourselfer and the experienced professional mechanic, covering everything from basic maintenance to complete engine rebuilds. Illustrations Type And Quantity: Hundreds of detailed illustrations, exploded diagrams, drawings, and photos guiding each service and repair procedure. Diagrams Specific Diagrams: Wiring schematics, vacuum diagrams, and serpentine belt routings with diagrams. 📊 Manual Specifications File Format Format: PDF Searchable: Yes, the PDF file is searchable. Print Quality Printability: Fully printable, allowing users to print specific sections or the entire manual. Zoom Capability: Yes, zoom in/out functionality is supported. Binding Type Binding: N/A (Digital PDF format) Paper Type Paper: N/A (Digital PDF format) Bookmarks Organization: Bookmarked for easy navigation and quick access to information. Compatibility Operating Systems: Compatible with all versions of Windows and Mac. Requirements Software: Adobe PDF Reader & WinZip. ⚙️ Engine Specifications Primary Engine Engine Type: V8 Displacement Range: 4.5L to 5.4L (depending on model year and variant, e.g., 4.5L, 4.7L, 5.0L, 5.4L S4/GT/GTS) Performance Horsepower Range: Approx. 219 hp (early models) to over 320 hp (later models like S4, GT, GTS) Torque Range: Approx. 250 lb-ft to over 317 lb-ft Fuel System Injection Type: Fuel Injection (Bosch L-Jetronic, Motronic) Timing Belt Or Chain: Timing Belt (critical maintenance item covered extensively in the manual) Cooling System Type: Liquid-cooled 🔧 Transmission Standard Type: 5-speed Manual Transaxle (initially available, less common in later years) Optional Type: 4-speed Automatic Transaxle (Tiptronic on later models, e.g., 928 S4, GT, GTS) Features Layout: Rear transaxle design, combining transmission and differential for better weight distribution. 📐 Dimensions Exterior Length Range: Approx. 179-182 inches (varies slightly by model year) Width Range: Approx. 72 inches Height Range: Approx. 50-51 inches Weights Curb Weight Range: Approx. 3,400 - 3,700 lbs Wheelbase: Approx. 98.4 inches Wheel Bolt Pattern: 5 x 130 mm Tire Sizes: Varies by model year and trim (e.g., 225/50VR16, 245/45ZR16, 225/40ZR17, 255/40ZR17) 🛡️ Safety Features Ratings Crash Test Information: As a classic car from this era, official crash test ratings from modern agencies are not directly applicable. However, the 928 was engineered with a robust chassis and safety features for its time. Active Features Braking System: Four-wheel disc brakes, Anti-lock...