🏷️ Basic Information Identification Make: Porsche Model: 924 Year: 1980 Vehicle Type: Sports Coupe Codes Chassis Code: Type 931 (Turbo variant, though this manual covers the base 924) 👋 Introduction Market Position Positioning: Entry-level sports coupe for Porsche, aimed at a broader market than 911. Competitive Analysis Competitors: Toyota Celica, Datsun Z-cars (280Z/ZX), Mazda RX-7, Ford Mustang, Chevrolet Camaro. Key Features Design Philosophy: Front-engine, rear-wheel-drive layout, transaxle design for balanced weight distribution, aerodynamic styling. Manual Value Proposition: Provides factory-level repair and maintenance information for technicians and enthusiasts, enabling informed decisions and self-sufficiency. 📋 Manual Details Coverage Areas Model Variants: Base 924 Market Regions: Global (English language) Page Count Estimated Page Count: Extensive (typical factory service manuals for this era range from 500-1500+ pages, PDF format allows for density) Manual Type Manual Type: Repair Service Manual / Workshop Manual Language Language: English Format File Format: PDF Delivery Delivery Method: Instant Download Requirements Software Requirements: Adobe PDF Reader, WinZip Compatibility Operating Systems: All Versions of Windows & Mac 📖 Manual Coverage Systems Covered Engine Mechanical: Yes (e.g., cylinder head, pistons, crankshaft, camshaft, timing belt, lubrication system) Engine Fuel System: Yes (e.g., fuel injection system details for Bosch K-Jetronic, fuel pump, fuel filter, fuel tank) Engine Ignition System: Yes (e.g., ignition timing, distributor, spark plugs, ignition coil) Engine Cooling System: Yes (e.g., radiator, water pump, thermostat, coolant hoses, fan) Transmission Manual: Yes (e.g., clutch operation, gearbox disassembly and assembly, gear shifting mechanism) Transmission Automatic: Likely covered if optional for 1980 model year Drivetrain: Yes (e.g., driveshafts, differential, transaxle) Suspension: Yes (e.g., front and rear suspension components, shock absorbers, springs, bushings) Steering: Yes (e.g., steering rack, steering column, power steering system if equipped) Brakes: Yes (e.g., brake system layout, disc brakes, brake pads, calipers, master cylinder, brake lines, parking brake) Electrical System: Yes (e.g., battery, alternator, starter motor, wiring diagrams, fuses, relays) Lighting System: Yes (e.g., headlights, taillights, interior lighting) Body And Chassis: Yes (e.g., body panel removal and installation, structural components, door mechanisms, glass) Interior: Yes (e.g., dashboard, seats, trim panels) HVAC System: Likely covered (heating and ventilation) Procedures Included Maintenance: Yes (e.g., routine checks, fluid changes, filter replacements) Diagnostics: Yes (troubleshooting guides for common issues) Repair: Yes (step-by-step repair procedures for all major systems) Disassembly Assembly: Yes (detailed instructions for component removal and reinstallation) Cleaning Reinstalling: Yes (as part of repair procedures) Technical Depth Depth Level: Comprehensive (suitable for professional technicians and advanced DIYers) Target Audience: Primarily Professional Technicians, also DIY mechanics with basic knowledge 📊 Manual Specifications File Format File Format: PDF Print Quality Printable: Full Printable Zoom Functionality: Zoom IN/OUT enabled Binding Type Binding Type: Digital (N/A for physical binding) Paper Type Paper Type: Digital (N/A for physical paper type) Content Quality Illustrations: Includes illustrations or pictures Specifications: Includes critical specifications ⚙️ Engine Specifications Primary Engine Engine Code: M31.01 (Volkswagen EA831 derivative) Engine Type: Inline 4-cylinder, naturally aspirated Displacement: 2.0 Liters (1984 cc) Bore X Stroke: 80.0 mm x 99.5 mm Compression Ratio: 8.5:1 Performance Horsepower Net: 110 hp @ 5800 rpm (approx.) Torque Net: 124 lb-ft @ 3500 rpm (approx.) Fuel System Fuel Delivery: Bosch K-Jetronic Continuous Injection System (CIS) Fuel Type: Unleaded Gasoline Fuel Pump Type: Mechanical or Electric (check specific model year) Engine Management ECM Availability: Basic engine control, not a sophisticated ECU like modern vehicles. 🔧 Transmission Standard Standard Transmission: 4-speed Manual Transaxle Optional Optional Transmission: 3-speed Automatic Transaxle (e.g., Audi 013) Features Transaxle Design: Rear-mounted transaxle (engine front, gearbox rear) for weight distribution. Fluid Type Manual Transmission Fluid: Hypoid gear oil, API GL-4, SAE 75W/90 or 80W/90 (refer to manual for specific Porsche specs) Fluid Capacity Manual Transmission Capacity: Approx. 2.0-2.5 liters (refer to manual for precise capacity) 📐 Dimensions Exterior Length: 4215 mm (165.9 inches) Width: 1685 mm (66.3 inches) Height: 1275 mm (50.2 inches) Wheelbase: 2400 mm (94.5 inches) Weights Curb Weight: 1150-1200 kg (approx., depending on options) Cargo Cargo Volume: Rear hatchback provides practical cargo space for its class. 🛡️ Safety Features Ratings Crash Test Data: Limited public data for this era, but built to contemporary European standards. Active Features Braking System: Front ventilated discs, rear solid discs. Parking Brake: Mechanical handbrake, typically acting on rear wheels. Passive Features Seatbelts: Three-point inertia-reel seatbelts standard. Headrests: Integrated front headrests. Chassis Design: Unibody construction with integrated safety cell. 💡 Technology Features Infotainment Audio System: Factory fitted radio and speaker system (optional). Driver Assistance Driver Aid Features: Minimal by modern standards. Primarily mechanical feedback. Connectivity Connectivity Options: None by modern definition. Focus on core driving mechanics. 🔧 Maintenance Service Intervals Oil Change Interval: Typically 5,000-7,500 miles or 6-12 months (refer to manual for precise Porsche recommendation). Timing Belt Replacement: Crucial maintenance item. Porsche recommended replacement at regular intervals (e.g., 50,000-60,000 miles or 4-5 years), as failure can cause catastrophic engine damage. Fluid Specifications Engine Oil...