🏷️ Basic Information Identification Make: Datsun Model: 240Z Year: 1973 Codes Chassis Code: HS30 / HLS30 👋 Introduction Market Position Positioning: Iconic Japanese sports car, the 240Z (Fairlady Z in Japan) revolutionized affordable performance motoring. Competitive Analysis Competitors Era: Competed with cars like the Jaguar E-Type (at a fraction of the cost), Chevrolet Corvette, and European GT cars. Key Features Design Philosophy: Stylish Italian-esque GT coupe design with a potent inline-six engine, rear-wheel drive, and a focus on driver engagement. Value Proposition: Exceptional performance and design for its price point, making sports car ownership accessible. 📋 Manual Details Coverage Areas Coverage: All models and variants of the 1973 Datsun 240Z Page Count Pages: Hundreds Manual Type Type: Service Repair Workshop Manual Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Engine Mechanical: Complete overhaul, tuning, lubrication, cooling system, fuel delivery (carburetor specific), exhaust. Engine Electrical: Ignition system, starter motor, alternator, wiring diagrams, lighting, instrumentation. Transmission: Manual and Automatic transmission overhaul, clutch assembly, driveshaft, differential. Brakes: Front disc and rear drum brake systems, hydraulic lines, master cylinder, parking brake. Suspension Steering: Front strut suspension, rear independent suspension, steering gear, power steering (if applicable). Body Chassis: Body panel repair, frame straightening, doors, windows, trim, interior components. Electrical Body: Wiper system, heater, ventilation, air conditioning (if equipped), power accessories. Procedures Included Maintenance: Scheduled maintenance, oil changes, filter replacements, tune-ups, fluid checks and top-offs. Troubleshooting: Diagnostic charts for common problems, symptoms, and remedies. Repair Rebuild: Detailed step-by-step instructions for component disassembly, repair, and reassembly. Restoration: Guidance on refurbishment of various vehicle systems and aesthetic components. Technical Depth Depth: Comprehensive, from basic maintenance to full engine and transmission rebuilds, including electrical diagnostics. 📊 Manual Specifications File Format Quality: High-resolution PDF, likely scanned from original factory manuals, ensuring clarity of diagrams and text. Print Quality Printability: Designed for easy printing of individual pages or sections for workshop use. Binding Type Binding: N/A (Digital Download) Paper Type Paper: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Code: L24 Engine Type: SOHC Inline 6-cylinder Displacement: 2393 cc (2.4 Liters) Bore X Stroke: 83.0 mm x 73.7 mm Performance Horsepower Net: 151 hp @ 5600 rpm (SAE Net) Torque Net: 190 lb-ft @ 4000 rpm (SAE Net) Fuel System Carburetion: Twin SU HS4 (or Hitachi HJG 46W) 2-barrel carburetors. Fuel Type: Unleaded gasoline (recommend premium) Ignition System Ignition Type: Distributor-based ignition with points and condenser. 🔧 Transmission Standard Transmission Type: 4-speed Manual (Type B) Optional Transmission Type: 3-speed Automatic (Optional) Features Clutch: Single dry plate, hydraulically actuated clutch. Rear Axle Ratio: Typically 3.54:1 (manual) or 3.36:1 (automatic), refer to manual for specific variations. 📐 Dimensions Exterior Length: 4135 mm (162.8 in) Width: 1610 mm (63.4 in) Height: 1250 mm (49.2 in) Wheelbase: 2305 mm (90.7 in) Weights Curb Weight: Approx. 1040-1120 kg (2293-2469 lbs), depending on transmission and options. 🛡️ Safety Features Ratings Safety Era: Safety standards of the era, lacking modern passive safety features like airbags and advanced crumple zones. Active Features Brakes: Front ventilated disc brakes, rear drum brakes. Power assistance was often optional or standard on later models. Passive Features Seatbelts: Lap and shoulder belts (likely three-point). Construction: Unitized body construction with integrated safety cage elements. 💡 Technology Features Infotainment Audio: Factory AM/FM radio, often with a single speaker. Aftermarket upgrades are common. Driver Assistance Assistance: None; purely mechanical systems with driver input. Connectivity Connectivity: No electronic connectivity features. 🔧 Maintenance Service Intervals Oil Change: Every 3,000 miles or 6 months, whichever comes first. Tune Up: Recommended every 10,000-12,000 miles or annually, including spark plugs, points, condenser, and distributor timing. Transmission Fluid: Check every 6 months, change every 24,000-30,000 miles (refer to manual for exact interval and fluid type). Fluid Specifications Engine Oil: API SF or SG rated oil, viscosity typically SAE 10W-30 or 10W-40 (refer to manual for precise recommendation). Coolant: 50/50 mixture of ethylene glycol antifreeze and distilled water. Brake Fluid: DOT 3 or DOT 4 (check manual for specific type). Known Issues Rust Prone Areas: Wheel arches, rocker panels, floor pans, battery tray area, rear hatch surround. Carburetor Issues: SU carburetors can be finicky; require regular adjustment, proper fuel flow, and correct float levels. Ignition System: Points and condenser require periodic inspection and replacement for optimal running. Electrical Gremlins: Aging wiring can lead to intermittent issues; thorough inspection and repair is often necessary. 📚 Vehicle History Brand Heritage Datsun Legacy: Datsun (later Nissan) built a reputation for reliable, affordable, and sporty vehicles. Model Evolution First Generation: The S30 chassis, of which the 240Z is the first iteration in North America, debuted in 1969 in Japan. Production Model Years: 240Z designation used for North America from 1970-1973. Replaced by the 260Z in 1974. Significant Changes 1973: Minor styling updates, bumper enhancements (often to meet US regulations), and potential minor interior...