🏷️ Basic Information Identification Make: Porsche Model: 928 Year: 1980 Codes Product Name: Porsche 928 1980 Repair Service Manual File Format Internal: PDF 👋 Introduction Market Position Market Segment: Luxury Grand Tourer Positioning Statement: The Porsche 928 was a groundbreaking front-engined, rear-wheel-drive V8 luxury grand tourer that challenged convention and offered a blend of performance, comfort, and sophisticated engineering. Competitive Analysis Competitors 1980: Jaguar XJ-S, BMW 6 Series (E24), Mercedes-Benz SLC/SL (R107). Key Features Design Philosophy: Transaxle layout for optimal weight distribution, aerodynamic design, advanced (for its time) features, and powerful V8 engine. Unique Selling Proposition: Unconventional front-engine layout for Porsche, unique blend of sports car performance with luxury GT comfort. 📋 Manual Details Coverage Areas Manual Type: Repair Service Manual Intended Audience: Professional Technicians and DIY Mechanics Page Count Page Count: Unknown (Digital PDF, variable based on zoom/print settings) Manual Type Manual Type Description: Comprehensive guide for maintenance, repair, and diagnostics, akin to factory service documentation. Language Language: English Format Delivery Method: Instant Download Software Requirements: Adobe PDF Reader, WinZip Compatibility: All Versions of Windows & Mac 📖 Manual Coverage Systems Covered Engine: 4.5L V8 (M30) Engine - Full overhaul, troubleshooting, components, timing, cooling, lubrication, fuel delivery, emissions. Transmission: Automatic Transmission (e.g., 3-speed or 4-speed depending on specific 1980 variant) - Service, repair, fluid specifications, torque converter. Drivetrain: Rear-Wheel Drive, Driveshafts, Axles, Differential - Maintenance, repair, CV joints, seals. Suspension: Front and Rear Suspension - MacPherson struts, trailing arms, anti-roll bars, shock absorbers, bushings, alignment specifications. Steering: Power Steering System - Pump, rack and pinion, hydraulic lines, troubleshooting, fluid type. Brakes: Front and Rear Disc Brakes (Vented Front) - Calipers, rotors, pads, master cylinder, brake booster, parking brake, bleeding procedures, fluid specifications. Electrical System: Comprehensive Wiring Diagrams, Fuses, Relays, Battery, Charging System (Alternator), Starting System (Starter Motor), Ignition System (Distributor, Coil, Plugs), Lighting, Gauges, Ancillary Electrical Components. Fuel System: Fuel Pump, Fuel Lines, Fuel Filter, Carburetor (likely Zenith Stromberg or Bosch K-Jetronic fuel injection depending on exact build) or EFI System components, fuel tank. Cooling System: Radiator, Water Pump, Thermostat, Hoses, Fan, Coolant Specifications. Exhaust System: Exhaust Manifolds, Catalytic Converter (if applicable for the region), Mufflers, Pipes, Hangers. Bodywork: Body Panels, Doors, Hood, Trunk, Bumpers, Glass, Seals, Interior Trim - Removal, installation, adjustment. HVAC: Heating, Ventilation, and Air Conditioning System - Components, troubleshooting, refrigerant (if applicable). Procedures Included Maintenance: Scheduled maintenance, oil changes, filter replacements, fluid checks, lubrication points. Disassembly: Step-by-step instructions for removing and disassembling all major components and systems. Assembly: Detailed reassembly procedures, including torque specifications and alignment guidance. Cleaning: Instructions for cleaning specific parts during overhaul or repair. Repair: In-depth repair procedures for all mechanical, electrical, and body components. Troubleshooting: Diagnostic charts and procedures for identifying and resolving common issues. Specifications: Critical technical data, measurements, tolerances, and settings. Technical Depth Depth: Comprehensive - Covers basic maintenance through complete engine and transmission rebuilds, electrical diagnostics, and bodywork. Illustrations: Includes illustrations or pictures to guide repair procedures. Diagnostic Focus: Strong emphasis on diagnostic information, essential for effective repair. 📊 Manual Specifications File Format File Format: PDF Print Quality Printability: Full Printable Zoom Functionality: Zoom IN/OUT Enabled Binding Type Binding Type: Digital (Downloadable PDF) Paper Type Paper Type: N/A (Digital) Completeness Completeness: Comparable to factory service manual and owner's manual content. ⚙️ Engine Specifications Primary Engine Engine Code: M30 (common Porsche V8 series) Configuration: V8, 90-degree Displacement: 4.5 Liters (4474 cc) Bore X Stroke: 94.0 mm x 80.0 mm Compression Ratio: 8.5:1 (typical for early models) Performance Horsepower: Approx. 210-220 bhp (SAE Gross) Torque: Approx. 250-260 lb-ft (SAE Gross) Fuel System Fuel Delivery: Bosch CIS (Continuous Injection System) Fuel Injection (most likely for 1980 model). Fuel Type: Unleaded Premium Gasoline (91+ Octane) Ignition System Ignition Type: Distributor-based electronic ignition. Cooling System Cooling Type: Water-cooled, front-mounted radiator. 🔧 Transmission Standard Transmission Type: Automatic Transaxle (e.g., W3A040 or similar) Number Of Gears Auto: 3-speed or 4-speed (depending on specific market and model year evolution). Optional Transmission Type Optional: 5-speed Manual Transaxle (available on some variants/markets) Features Transaxle Layout: Rear transaxle design for balanced weight distribution (engine in front, transmission and differential in rear). Fluid Specifications Automatic Transmission Fluid: Dexron III or equivalent ATF (refer to manual for exact specification). 📐 Dimensions Exterior Length: Approx. 4681 mm (184.3 in) Width: Approx. 1786 mm (70.3 in) Height: Approx. 1283 mm (50.5 in) Wheelbase: Approx. 2433 mm (95.8 in) Weights Curb Weight: Approx. 1550-1650 kg (3417-3638 lbs) depending on transmission and equipment. Gross Vehicle Weight Rating: Approximately 2040 kg (4500 lbs) 🛡️ Safety Features Ratings Crash Test Data: Limited public crash test data available for this era. Porsche's focus was on engineering integrity. Active Features Braking System: Four-wheel disc brakes, power assisted, front ventilated. Steering System: Power-assisted rack and pinion steering. Passive Features Seat Belts: Three-point inertia reel seat belts. Construction: Robust body structure...