🏷️ Basic Information Identification Make: Datsun Model: 610 Year: 1974 Manufacturer: Nissan Motor Co., Ltd. Codes Chassis Code Prefix: 610 👋 Introduction Market Position Era: Compact/Mid-size sedan and coupe segment of the early 1970s Japanese automotive market. Competitive Analysis Competitors: Toyota Corona, Honda Accord (later in the decade), Mazda Capella, Ford Pinto, Chevrolet Vega, Plymouth Duster. Key Features Vehicle Appeal: Reliability, fuel efficiency for its time, sporty styling (especially the Hardtop), value proposition. Manual Value Proposition Benefit To Owner: Enables owners to perform maintenance, diagnose issues, and conduct repairs themselves, saving on labor costs and fostering a deeper understanding of their vehicle. 📋 Manual Details Coverage Areas Primary Coverage: All Datsun 610 models manufactured in 1974 Body Styles Covered: Sedan, Hardtop Coupe, Station Wagon Page Count Estimated Page Count: Approx. 500-700 pages (typical for comprehensive factory manuals of this era) Manual Type Type: Factory Service Repair Manual (FSM) Language Language: English Format Format: PDF 📖 Manual Coverage Systems Covered Engine: Detailed diagnostics, repair, overhaul for L-series engines (e.g., L18, L20B) Fuel System: Carburetor systems (e.g., Hitachi), fuel pump, fuel tank, lines Ignition System: Distributor, ignition coil, spark plugs, timing Cooling System: Radiator, fan, water pump, thermostat, coolant specifications Exhaust System: Exhaust manifold, pipes, muffler, emissions control (if applicable) Transmission: Manual and Automatic transmission overhaul, repair, fluid specifications Drivetrain: Driveshaft, differential, rear axle assembly Suspension: Front (independent McPherson strut) and Rear (live axle with leaf springs or coil springs) components, alignment Steering: Steering gearbox, linkages, steering column Brakes: Front disc brakes, rear drum brakes, hydraulic system, parking brake Wheels And Tires: Tire sizes, wheel specifications, bolt patterns Electrical System: Battery, charging system (alternator), starting system (starter), lighting, horn Wiring Diagrams: Comprehensive electrical schematics for all circuits Body And Chassis: Body panel removal/installation, glass, seals, structural components Interior: Seats, dashboard, trim, controls HVAC: Heating system operation and service (if equipped) Procedures Included Maintenance: Scheduled maintenance, fluid changes, filter replacements, lubrication Troubleshooting: Diagnostic flowcharts and symptom-based troubleshooting guides Repair: Step-by-step instructions for component disassembly, repair, and reassembly Overhaul: Complete engine, transmission, and differential rebuild procedures Diagnostics: Engine performance testing, electrical system testing, brake system testing Technical Depth Depth: Comprehensive: Covers basic maintenance to full engine/transmission overhauls and advanced electrical diagnostics. 📊 Manual Specifications File Format Format: PDF Searchability: Likely text-searchable if OCR'd accurately. Print Quality Quality: High-resolution scans suitable for digital viewing and printing. Binding Type Binding: N/A (Digital PDF) Paper Type Paper: N/A (Digital PDF) Software Requirements Reader: Adobe Acrobat Reader (or compatible PDF reader) Unzipping: WinZip or equivalent utility (if delivered in a zipped archive) ⚙️ Engine Specifications Primary Engine Engine Type: Inline 4-cylinder, Overhead Valve (OHV) or Overhead Cam (OHC) depending on variant. Displacement: Commonly 1.8L (1800cc) or 2.0L (2000cc) for the L-series engines. Engine Codes: Examples include L18 (1.8L), L20B (2.0L). Performance Horsepower Range: Approximately 90-115 hp depending on engine and emission controls. Torque Range: Approximately 100-120 lb-ft. Fuel System Carburetor Type: Single or twin Hitachi downdraft carburetors (e.g., Hitachi SU-type, Hitachi DC). Fluid Specifications Engine Oil Type: API SF/CC or SG/CD rated oils, typically SAE 10W-30 or 10W-40. Coolant Type: Ethylene Glycol based coolant (50/50 mix with distilled water). 🔧 Transmission Standard Transmission Type: 4-speed or 5-speed manual transmission. Optional Transmission Type: 3-speed automatic transmission (e.g., F3N71A). Features Transmission Fluid Manual: GL-4 gear oil, SAE 75W-90 or 80W-90. Transmission Fluid Automatic: Dexron III (or equivalent ATF). 📐 Dimensions Exterior Wheelbase: Approx. 98.4 inches (2500 mm). Length: Approx. 167-177 inches (4240-4495 mm) depending on body style. Weights Curb Weight Range: Approx. 2200-2600 lbs (1000-1180 kg) depending on configuration. Wheel Bolt Pattern: 4x114.3 mm (4.5 inch PCD). 🛡️ Safety Features Ratings Era Safety Standards: Reflects safety standards of the early 1970s; lacks modern safety features like airbags or ABS. Active Features Brakes: Front disc, rear drum brakes. Passive Features Seatbelts: Standard seatbelts; lap belts in rear. 💡 Technology Features Infotainment Audio System: AM radio or optional AM/FM radio. Basic speaker setup. Driver Assistance Features: None of the modern driver assistance systems we recognize today. Relies on driver attentiveness. Connectivity Features: No electronic connectivity features. 🔧 Maintenance Service Intervals Oil Change Interval: Typically every 3,000 miles (5,000 km) or 6 months, whichever comes first. Tune Up Interval: Recommended tune-ups (spark plugs, points, condenser, filters) every 12,000-15,000 miles (20,000-25,000 km). Transmission Fluid Change: Manual: Every 24,000 miles (40,000 km). Automatic: Every 12,000 miles (20,000 km) or as specified. Fluid Specifications Brake Fluid Type: DOT 3 or DOT 4 hydraulic brake fluid. Coolant Capacity: Approx. 4.5 - 5.5 quarts (4.3 - 5.2 liters) depending on engine. Known Issues Common Wear Items: Ignition points/condenser wear, carburetor adjustment, fuel line deterioration, aging rubber suspension bushings, exhaust system rust. Rust Prone Areas: Wheel wells, rocker panels, floor pans, door bottoms. 📚 Vehicle History Brand Heritage Datsun Reputation: Datsun (Nissan's export brand) was known for producing reliable,...