🏷️ Basic Information Identification Make: Porsche Model: 911 Model Generation Covered: G-Series (1974-1989) Product Name: 1984-1989 PORSCHE 911 Workshop Service Repair Manual 👋 Introduction Market Position Target Audience: From first-time owners/amateurs to professional technicians. Key Features Ease Of Use: Easy to read type, provides all necessary information for correct procedure execution. Value Proposition Benefits: Saves time and money through preventive maintenance, preventing premature failure and unnecessary repairs. 📋 Manual Details Coverage Areas Primary Coverage: Complete workshop service and repair for 1984-1989 Porsche 911 models. Page Count Estimated Page Count: Detailed page count not specified, but comprehensive coverage implies significant volume. Manual Type Type: Workshop Service Repair Manual Language Language: English Format File Format: PDF 📖 Manual Coverage Systems Covered Engine System: Engine overhaul and rebuilding, engine performance, firing orders, serpentine belt routings, timing belt service procedures. Brake System: Brakes, brake servicing procedures. Chassis And Suspension: Front end and alignment procedures and specifications, suspension. Electrical And Electronics: Wiring diagrams, computer diagnostic trouble tree charts, computer diagnostic codes. Transmission And Drivetrain: Transmission removal and installation, transmission in-car servicing, U-joint and CV-joint service procedures. Comfort And Convenience: Sunroof. HVAC: Air conditioning service and capacities. Driving Concerns: Includes sections addressing driving concerns, likely related to performance and handling. Procedures Included Maintenance And Tune Up: Factory maintenance schedules and charts, preventive maintenance. Diagnostics And Troubleshooting: Trouble codes, troubleshooting and diagnostics, computer diagnostic trouble tree charts. Repair And Rebuilding: Engine overhaul and rebuilding, repair procedures. Vacuum Diagrams: Detailed vacuum diagrams are provided for engine and ancillary systems. Wiring Diagrams: Complete and detailed wiring diagrams are included for all electrical systems. Technical Depth Depth Of Coverage: Comprehensive for amateur to professional technicians, covering engine rebuilding, diagnostics, and detailed specifications. Diagnostic Tools: Covers procedures and information relevant to understanding and using diagnostic tools of the era, including specific trouble codes. Model Variations: Detailed specifications on every model covered within the 1984-1989 range (e.g., Carrera, Carrera Targa, Carrera Cabriolet, 930 Turbo). 📊 Manual Specifications File Format Compatibility: All Versions of Windows & Mac Reader Requirement: Adobe PDF Reader Print Quality Illustrations: Hundreds of illustrations, diagrams (including vacuum and wiring). Searchability: PDF format allows for text searching of manual contents. Binding Type Binding: Digital (PDF) Paper Type Paper Quality: Not Applicable (Digital) ⚙️ Engine Specifications Primary Engine Engine Configuration: Rear-mounted, air-cooled, flat-six (excluding later 964 models which may have liquid-cooled heads, though this manual likely focuses on air-cooled variants specific to the 1984-1989 G-series). Performance Typical Displacement: 3.2L, 3.3L (Turbo), 3.6L (later G-series/early 964 overlap) Typical Horsepower: 207-231 hp (Naturally Aspirated), 282-300 hp (Turbo) Typical Torque: 238-287 Nm (Naturally Aspirated), 385-420 Nm (Turbo) Fuel System Fuel Delivery: Bosch L-Jetronic or Motronic fuel injection (specific to engine variant). Ignition System Ignition Type: Distributor ignition system. Cooling System Cooling Method: Air-cooled (with oil cooling). 🔧 Transmission Standard Transmission Type Standard: 5-speed manual (G50 gearbox introduced in 1987). Optional Transmission Type Optional: 4-speed manual (earlier models), Sportomatic automatic (less common). Features Clutch Type: Hydraulically operated single-plate dry clutch. Fluid Specifications Gearbox Oil Type: Specific GL-rated synthetic gear oil (e.g., SAE 75W-90 or 75W-140, refer to manual for exact spec and capacity). 📐 Dimensions Exterior Body Styles: Coupe, Targa, Cabriolet. Wheelbase: Approx. 2272 mm (89.45 in) Weights Curb Weight: Approx. 1150 - 1350 kg (2535 - 2976 lbs) depending on model and equipment. 🛡️ Safety Features Ratings Crash Test Data: Vehicle of this era predates modern standardized crash testing protocols like NCAP. Focus on structural integrity and driver protection for its time. Active Features Braking System: 4-wheel disc brakes, often ventilated front discs. Anti-lock Braking System (ABS) became available on later models (e.g., 1987 onwards Carrera 2/4). Passive Features Restraint System: 3-point seatbelts, optional airbags on later models. 💡 Technology Features Infotainment Audio System: Factory-installed or period-appropriate aftermarket radio/cassette players. Manual may cover basic wiring for these. Driver Assistance ABS Availability: Available on specific models from 1987 onwards. Diagnostics Onboard Diagnostics: Early forms of engine management computer diagnostics are covered, including trouble codes and diagnostic charts. 🔧 Maintenance Service Intervals Oil Change Interval: Typically every 7,500-10,000 miles (12,000-15,000 km) or annually, depending on usage. Refer to manual for exact Porsche recommendations. Major Service Interval: Significant intervals for valve adjustments, spark plug replacement, and belt checks/replacements. Fluid Specifications Engine Oil Type: High-performance synthetic engine oil, typically SAE 20W-50 or 15W-50 (check manual for precise specification). Brake Fluid Type: DOT 4 or DOT 5.1 brake fluid (ensure compatibility with seals). Coolant Type: Not applicable for air-cooled engines, but oil cooler circuits require appropriate oil. Known Issues Common Wear Items: Timing chain tensioners (can fail, leading to significant engine damage), oil leaks (especially from crank seals and oil lines), valve stem seals, clutch wear, front suspension bushings. Electrical Concerns: Older wiring harnesses can degrade; intermittent electrical faults can occur. Technical Specifications Torque Specifications: Complete torque specifications provided...