🏷️ Basic Information Identification Make: Subaru Model: Vortex Model Variant: EA82 / ER27 Production Years: 1985-1991 Codes Engine Code 1: EA82 Engine Code 2: ER27 👋 Introduction Market Position Target Audience: DIY enthusiasts, independent repair shops, Subaru owners seeking in-depth knowledge Competitive Analysis Value Proposition: Provides factory-level technical information, crucial for accurate and efficient repairs of older Subaru models. Key Features Feature 1: Comprehensive coverage of both EA82 and ER27 engine variants. Feature 2: Detailed, illustrated procedures mirroring professional technician resources. Feature 3: Includes crucial wiring diagrams for electrical system diagnostics. Feature 4: Over 1400 pages of in-depth technical data. 📋 Manual Details Coverage Areas Coverage Scope: Full Service & Repair Page Count Page Count: >1400 pages Manual Type Manual Type: Factory Service Manual (FSM) Language Language: English Format Format: PDF (Downloadable) 📖 Manual Coverage Systems Covered Engine Systems: Engine Mechanical, Lubrication, Cooling, Fuel Injection, Fuel System, Exhaust System, Emission Control Drivetrain Systems: Clutch, Manual Transmission, Automatic Transmission, 4WD System, Wheels & Axles Chassis Systems: Suspension, Steering System, Brake System Electrical Systems: Engine Electrical, Body Electrical, Wiring Diagrams Body And Interior: Heater & Ventilation, Air Conditioning, Body & Exterior, Interior, Instrument Panel Procedures Included Repair Procedures: Detailed step-by-step written procedures for disassembly, inspection, repair, and reassembly Maintenance Procedures: Routine maintenance, servicing, fluid changes, filter replacements, inspections Diagnostic Procedures: Troubleshooting guides, symptom-based diagnostics, fault code interpretation (where applicable) Installation Procedures: Component installation and adjustment General Information: Pre-delivery inspection checklist, vehicle identification, general safety precautions. Special Tools: Identification and use of specific tools required for Subaru Vortex repairs. Technical Depth Diagnostic Capabilities: Advanced diagnostics, component testing, electrical troubleshooting Rebuild Capabilities: Complete engine rebuild, transmission overhaul, component overhaul procedures Illustrations: Detailed exploded views, schematics, and diagrams Engine Electrical Depth: Detailed troubleshooting for ignition system, starting system, charging system, sensors, and actuators. Body Electrical Depth: Covers lighting systems, wipers, horn, power windows, door locks, and instrument cluster diagnostics. 📊 Manual Specifications File Format File Type: Portable Document Format (PDF) Print Quality Printability: Fully printable (selected pages or entire manual) Binding Type Binding Type: N/A (Digital Download) Paper Type Paper Type: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine 1 Name: EA82 Engine 1 Configuration: Horizontally Opposed (Boxer) 4-cylinder Engine 1 Displacement: 1.8 Liters (1781 cc) Engine 1 Valvetrain: Overhead Camshaft (OHC) Secondary Engine Engine 2 Name: ER27 Engine 2 Configuration: Horizontally Opposed (Boxer) 6-cylinder Engine 2 Displacement: 2.7 Liters (2672 cc) Engine 2 Valvetrain: Overhead Camshaft (OHC) Performance Typical Horsepower Ea82: Approx. 90-100 hp (varies by specific model and emission controls) Typical Torque Ea82: Approx. 105-115 lb-ft (varies by specific model) Typical Horsepower Er27: Approx. 130-145 hp (varies by specific model) Typical Torque Er27: Approx. 155-170 lb-ft (varies by specific model) Fuel System Fuel Delivery Ea82: Multi-point Fuel Injection (MPI) or Carbureted (early models) Fuel Delivery Er27: Multi-point Fuel Injection (MPI) 🔧 Transmission Standard Standard Transmission Type: 5-Speed Manual Optional Optional Transmission Type: 3-Speed or 4-Speed Automatic Features Drivetrain Configuration: Symmetrical All-Wheel Drive (AWD) 📐 Dimensions Exterior Vehicle Segment: Compact SUV / Station Wagon Weights Curb Weight Range: Approx. 2700-3200 lbs (varies by model, engine, and drivetrain) 🛡️ Safety Features Ratings Safety Standards: Reflects safety standards of the late 1980s; may not meet modern crash test requirements. Active Features Active Safety Typical: All-Wheel Drive (standard), Disc front brakes, Drum rear brakes (typical) Passive Features Passive Safety Typical: Seat belts, reinforced body structure 💡 Technology Features Infotainment Infotainment Systems: Basic AM/FM radio, cassette player (optional), manual climate controls. Driver Assistance Driver Assistance Features: Limited by the era; primarily focused on the AWD system for traction. Connectivity Connectivity Features: None (no integrated Bluetooth, USB, or smartphone integration). 🔧 Maintenance Service Intervals Oil Change Interval: Typically 3,000-5,000 miles or 3-6 months, refer to manual for precise intervals based on driving conditions. Spark Plug Replacement Interval: Refer to manual, often around 30,000 miles for conventional plugs. Timing Belt Replacement Interval: Critical component, typically 60,000-100,000 miles or 5-7 years. Failure can cause catastrophic engine damage. Fluid Specifications Engine Oil Viscosity: API SG or higher; SAE 5W-30, 10W-30, or 10W-40 depending on ambient temperature (refer to manual for exact specs). Coolant Type: Ethylene glycol-based antifreeze, typically a 50/50 mix with distilled water. Use of Subaru coolant or equivalent recommended. Transmission Fluid Manual: API GL-4 or GL-5 gear oil, SAE 75W-90 or 80W-90 recommended. Manual will specify exact type and capacity. Transmission Fluid Automatic: Dexron II or equivalent ATF. Manual will specify exact type and capacity. Brake Fluid Type: DOT 3 or DOT 4 brake fluid. Known Issues Common Issue 1: Head gasket leaks (especially on EA82 engines with earlier designs), requiring careful diagnosis and repair. Common Issue 2: Rust and corrosion, particularly in wheel wells, rocker panels, and suspension mounting points, due to age and environmental factors. Common Issue 3: Fuel injector issues or carburetor adjustments on fuel-injected or...