🏷️ Basic Information Identification Make: Porsche Model: 925 Turbo Model Code: 930 (for turbo models) Generation: G-Series Production Years Covered: 1979, 1980, 1981, 1982, 1983, 1984 👋 Introduction Market Position Vehicle Segment: High-performance sports car Target Audience: Porsche enthusiasts, owners, and independent mechanics Competitive Analysis Competitors Era: Ferrari 308 GTB/GTS, Lamborghini Countach, Aston Martin V8 Vantage Key Features Vehicle Iconic Status: Legendary performance and design heritage Manual Value Proposition: Empowers owners to perform maintenance and repairs, saving costs and maintaining vehicle integrity 📋 Manual Details Coverage Areas Manual Type: Service Repair Manual Language: English File Format: PDF Printability: Fully Printable Digital Features: Zoom IN/OUT Functionality Delivery Method: Instant Download Required Software: Adobe PDF Reader, WinZip Operating System Compatibility: All Versions of Windows & Mac 📖 Manual Coverage Systems Covered General Information: Comprehensive overview of the vehicle and manual usage Periodic Maintenance: Detailed maintenance schedules and procedures Engine: Complete engine repair, overhaul, and component diagnosis Fuel System: Fuel injection system, fuel pumps, lines, and injectors Cooling System: Radiator, fans, coolant lines, and thermostat Electrical System: Wiring diagrams, battery, alternator, starter, ignition, lighting, and accessories Chassis: Suspension, steering, brakes, and wheels Services Information: General service procedures and specifications Emission Control Information: Emission control systems and related troubleshooting Procedures Included Repair Procedures: Step-by-step instructions for a wide range of repairs Troubleshooting: Diagnostic guides for common and complex issues Component Replacement: Guidance on replacing specific parts and assemblies Adjustment Procedures: Specifications and methods for system adjustments Engine Overhaul: Detailed procedures for engine disassembly, inspection, and reassembly Turbocharger Maintenance: Specific guidance on turbocharger system checks, servicing, and potential repairs Fuel System Calibration: Instructions for adjusting and troubleshooting the K-Jetronic fuel injection system Suspension Repair: Detailed steps for suspension component replacement and alignment specifications Electrical Diagnostics: Comprehensive wiring diagrams and troubleshooting for all electrical components Technical Depth Depth Of Coverage: Comprehensive, covering routine maintenance to major overhauls Diagnostic Capability: Detailed diagnostic flowcharts and troubleshooting trees Rebuild Procedures: Inclusion of detailed engine and transmission rebuild instructions 📊 Manual Specifications File Format Format: PDF Resolution: High-resolution for clear text and diagrams Print Quality Print Capability: Fully printable for workshop use Binding Type Binding Format: Digital (PDF), no physical binding Paper Type Paper Type Equivalent: N/A (Digital Format) ⚙️ Engine Specifications Primary Engine Engine Type: Flat-six (Boxer), turbocharged, air-cooled Displacement: 3.0 Liters (2994 cc) Bore X Stroke: 95.0 mm x 70.4 mm Compression Ratio: 7.0:1 (approximate, varies slightly by year/market) Performance Horsepower: 260 hp @ 5500 rpm (approximate, varies by year) Torque: 282 lb-ft @ 3500 rpm (approximate, varies by year) Fuel System Fuel Delivery: Bosch K-Jetronic mechanical fuel injection Fuel Type: Premium Unleaded Gasoline Engine Management Ignition System: Breakerless ignition with electronic advance Turbocharger System: Single Turbocharger with Intercooler 🔧 Transmission Standard Transmission Type: 4-Speed Manual Transaxle Optional Optional Transmission: 5-Speed Manual Transaxle (available on later models) Features Transmission Gear Ratios: Specific gear ratios provided in manual Fluid Requirements Transmission Fluid Type: API GL-4 gear oil (e.g., Mobilube HD 75W-90 or equivalent) 📐 Dimensions Exterior Wheelbase: 2271 mm (89.4 inches) Length: 4216 mm (165.9 inches) Width: 1720 mm (67.7 inches) Height: 1310 mm (51.6 inches) Weights Curb Weight: Approx. 1210 - 1300 kg (2668 - 2866 lbs) Weight Distribution: Rear-engine, rear-wheel drive bias 🛡️ Safety Features Ratings Crash Test Data: Limited official crash test data available for this era; focus on passive safety design Active Features Braking System: Four-wheel disc brakes (ventilated front, solid rear) Anti Lock Brakes: Not standard; available as an option on some later models Passive Features Seat Belts: Three-point inertia reel seat belts Body Structure: Reinforced chassis with crumple zones 💡 Technology Features Infotainment Audio System: Factory AM/FM radio with cassette player (optional/standard depending on trim and year) Speaker Configuration: Basic speaker setup (e.g., front door speakers, rear quarter panel speakers) Driver Assistance Cruise Control: Available as an option on some models Connectivity Connectivity Features: N/A (Pre-modern connectivity era) 🔧 Maintenance Service Intervals Oil Change Interval: Every 3,000 miles or annually (whichever comes first) Major Service Interval: Every 15,000 miles or annually, including valve adjustment and spark plug replacement Fluid Specifications Engine Oil Type: Air-cooled engine oil, e.g., Valvoline VR1 20W-50 or equivalent, with zinc additive Engine Oil Capacity: Approx. 9.5 Liters (10 US Quarts) with filter change Brake Fluid Type: DOT 3 or DOT 4 brake fluid Known Issues Common Problem 1: Valve adjustment drift leading to potential valve seat wear. Common Problem 2: Oil leaks due to aged seals and gaskets. Common Problem 3: Turbocharger wear and potential failure if not properly maintained or if oil supply is compromised. Common Problem 4: K-Jetronic fuel system adjustments and component reliability. Common Problem 5: Fuel line degradation and potential leaks. 📚 Vehicle History Brand Heritage Porsche Legacy: Building on the success of the 911 lineage, known for performance, racing pedigree, and engineering excellence Model...