🏷️ Basic Information Identification Make: Porsche Model: 924 Year: 1979 Codes Chassis Code: 924 👋 Introduction Market Position Target Audience: Primarily professional technicians, but also suitable for do-it-yourself mechanics with basic electrical and mechanical knowledge. Key Features Instructional Style: Step-by-step guidance, designed to impart factory-trained technician knowledge. Delivery Method: Instant Download Content Scope: Covers maintenance, repair, and general information typically found in factory service and owner's manuals. 📋 Manual Details Coverage Areas Engine Coverage: 2.0L (EA831/125 PS) Transmission Coverage: 4-speed Manual, 3-speed Automatic Body Styles Covered: Coupe Page Count Estimated Page Count: Extensive (Typical Factory Service Manual Range: 1000+ pages, specific count not provided in product info) Manual Type Manual Type: Repair Service Manual / Workshop Manual Language Language: English Format File Format: PDF 📖 Manual Coverage Systems Covered Engine Mechanical: Engine assembly, disassembly, cylinder head, pistons, crankshaft, camshaft, timing belt, lubrication system, cooling system, fuel system (carburetor, injection components), exhaust system. Engine Management: Ignition system, fuel injection system (Bosch L-Jetronic), emissions control systems. Transmission Manual: Clutch, gearbox assembly, shifting mechanism, maintenance, repair. Transmission Automatic: Automatic transmission overhaul, maintenance, hydraulic system, torque converter. Drivetrain: Driveshafts, constant velocity (CV) joints, rear axle, differential. Suspension: Front suspension (MacPherson struts, control arms, anti-roll bar), rear suspension (trailing arms, torsion bars, shock absorbers), alignment specifications. Steering: Steering rack, tie rods, power steering system (if equipped), steering column. Brakes: Front disc brakes, rear drum brakes, hydraulic system, brake fluid specifications, parking brake, ABS (if equipped, though unlikely for '79). Electrical System: Battery, charging system (alternator), starting system (starter motor), lighting system, ignition switch, wiring diagrams, fuses, relays, dashboard instruments, horn, wipers, washers, HVAC controls. Body And Chassis: Body panel removal and installation, doors, hood, trunk lid, glass, seals, interior trim, frame specifications, jacking points, towing. HVAC: Heating system, ventilation, air conditioning (if equipped) components, operation, and service. Procedures Included Maintenance: Scheduled maintenance, fluid checks and changes, filter replacements, lubrication, tune-up procedures. Disassembly And Assembly: Detailed step-by-step instructions for removing, overhauling, and reinstalling major components and systems. Repair: Specific repair procedures for common and uncommon faults across all vehicle systems. Troubleshooting: Diagnostic charts and procedures for identifying and resolving mechanical and electrical issues. Cleaning: Procedures for cleaning and preparing parts during overhaul. Technical Depth Depth Of Coverage: Comprehensive, suitable for professional technicians and advanced DIYers. Covers fundamental to complex repairs, diagnostics, and rebuilds. 📊 Manual Specifications File Format File Type: PDF Print Quality Printable: Full Printable Zoom Capability: Zoom IN/OUT enabled Binding Type Binding Type: N/A (Digital Download) Paper Type Paper Type: N/A (Digital Download) Compatibility Operating Systems: Compatible with All Versions of Windows & Mac Software Requirements Reader Software: Adobe PDF Reader Unzipping Software: WinZip or equivalent ⚙️ Engine Specifications Primary Engine Engine Type: Inline 4-cylinder, front-mounted, longitudinally positioned Displacement: 1984 cc (2.0 Liters) Bore X Stroke: 80.0 mm x 98.0 mm Compression Ratio: 8.5:1 (approximate) Engine Code: EA831 / M44.00 Performance Horsepower: 125 PS (92 kW) @ 5800 rpm (approx.) Torque: 170 Nm (125 lb-ft) @ 3500 rpm (approx.) Fuel System Fuel Delivery: Bosch L-Jetronic fuel injection Fuel Type: Unleaded gasoline (Octane rating as specified in manual) Engine Management Ignition System: Electronic Ignition (CDi system) 🔧 Transmission Standard Standard Transmission: 4-speed Manual Optional Optional Transmission: 3-speed Automatic (ZF 3HP12) Features Clutch Type: Single dry plate, hydraulically operated Manual Gear Ratios: Specific ratios provided in manual (typical: 1st: ~3.7, 2nd: ~2.3, 3rd: ~1.5, 4th: ~1.1, Reverse: ~3.3) 📐 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: 1100 kg (2425 lbs) approx. 🛡️ Safety Features Ratings Crash Testing Era: Information limited for this era; manuals focus on mechanical integrity and repair for existing safety features. Active Features Brakes: Front: Ventilated Discs, Rear: Drums. Dual-circuit hydraulic system. Passive Features Seat Belts: 3-point front seat belts (standard). 💡 Technology Features Infotainment Audio System: Typically an AM/FM radio with cassette player (optional factory or aftermarket units). Driver Assistance ABS: Anti-lock Braking System (ABS) was not a standard or widely available option on the 1979 model. 🔧 Maintenance Service Intervals Oil Change Interval: Typically 5,000-7,500 miles or 1 year (specific recommendation in manual). Timing Belt Replacement: Crucial item. Typically 40,000-60,000 miles or 4-5 years (consult manual for exact interval and inspection procedure). Tune Up Interval: Regular checks for spark plugs, ignition timing, fuel mixture. Interval as per manual, often tied to oil changes or specific mileage. Fluid Specifications Engine Oil Type: Refer to manual for specific viscosity grade (e.g., 10W-40 or 15W-50, depending on climate and oil formulation of the era). Coolant Type: Ethylene glycol-based antifreeze, mixed with distilled water (typically 50/50 ratio). Specific Porsche coolant recommendations may apply. Brake Fluid Type: DOT 3 or DOT 4 hydraulic brake fluid. Transmission Fluid Manual: Gear oil (e.g., SAE 80W-90 GL-4 or GL-5). Transmission Fluid...