🏷️ Basic Information Identification Make: Triumph Model: Herald Model Variants: 1200, 12-50 Production Years Covered: 1959-1971 Generation Herald Generation: First Generation (1959-1971) 👋 Introduction Market Position Target Audience: Professional technicians and DIY enthusiasts Competitive Analysis Manual Advantage: Authentic factory information, comprehensive coverage Key Features Digital Format Benefit: Instant download, no shipping, clean workspace (print only needed sections) Accuracy: Written by manufacturers, considered most accurate and complete available 📋 Manual Details Coverage Areas Coverage Scope: Workshop Service Repair Page Count Estimated Page Count: Hundreds of pages (specific count not provided, but described as extensive) Manual Type Manual Type: Workshop Service Manual / Repair Manual Language Language: English Format File Format: PDF Delivery Method: Instant Download Requirements Software Requirements: Adobe PDF Reader & WinRAR Operating System Compatibility: All Versions of Windows & Mac 📖 Manual Coverage Systems Covered Engine: Yes (Overhaul procedures mentioned) Transmission: Yes (Implied within general repair and overhaul) Electrical System: Yes (Wiring diagrams usually included) Brakes: Yes (Implied within general repair and maintenance) Suspension: Yes (Implied within general repair and maintenance) Steering: Yes (Implied within general repair and maintenance) Bodywork And Chassis: Yes (Implied within general repair and maintenance) Fuel System: Yes (Implied within engine overhaul and maintenance) Cooling System: Yes (Implied within engine overhaul and maintenance) Clutch: Yes (Implied within transmission and engine overhaul) Exhaust System: Yes (Implied within engine overhaul and maintenance) Fuel Delivery: Yes (Fuel pump, lines, carburetor service) Ignition System: Yes (Distributor, coil, spark plugs, leads) Wheel Alignment: Yes (Crucial for handling due to independent suspension) Procedures Included Routine Maintenance: Yes (Periodic maintenance charts) Step By Step Repair: Yes Troubleshooting: Yes Overhaul: Yes (Specifically engine overhaul mentioned) Diagnostics: Yes Troubleshooting Guides: Yes (Specific charts and guides for diagnosing issues) Technical Depth Depth Level: Comprehensive (Suitable for professional technicians and DIY mechanics) 📊 Manual Specifications File Format File Type: PDF Print Quality Printability: Full Printable Zoom Capability: Zoom IN/OUT Binding Type Binding: N/A (Digital Download) Paper Type Paper Type: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Type: Inline 4-cylinder (OHV) Engine Displacement 1200: 1200 cc (approx. 73.2 cubic inches) Engine Displacement 12-50: 1296 cc (approx. 79.1 cubic inches) Performance Horsepower 1200: Approx. 40-42 bhp at 4,000 rpm Horsepower 12-50: Approx. 45-47 bhp at 4,200 rpm Torque 1200: Approx. 65-70 lb-ft at 2,000 rpm Torque 12-50: Approx. 70-75 lb-ft at 2,200 rpm Fuel System Carburetor 1200: Single Zenith 36IV or SU H2 Carburetor 12-50: Twin SU HS2 🔧 Transmission Standard Transmission Type Standard: 4-speed manual Optional Transmission Type Optional: Laycock de Normanville overdrive (available on some models, often designated by '-50' in model names, though the '12-50' specifically refers to the engine capacity increase, not always overdrive as a primary identifier for that model. Features Gearbox Layout: Remote-controlled gear change 📐 Dimensions Exterior Wheelbase: Approx. 82 inches (2083 mm) Length: Approx. 151.75 inches (3854 mm) Width: Approx. 60.75 inches (1543 mm) Height: Approx. 50 inches (1270 mm) to roofline Weights Kerb Weight: Approx. 1740 - 1850 lbs (790 - 840 kg) depending on body style and equipment 🛡️ Safety Features Ratings Safety Era Context: Designed in an era with different safety standards than modern vehicles. Features such as crumple zones and airbags were not prevalent. Seat belts were often optional. Active Features Brakes Type: Front: Disc brakes (Girling 7" discs); Rear: Drum brakes Passive Features Chassis Design: Integrated body-chassis construction (monocoque), but with a separate outrigger frame for structural rigidity and mounting of components. 💡 Technology Features Infotainment Infotainment Features: Basic radio, if fitted. No modern infotainment systems. Driver Assistance Driver Assistance Features: None. Designed before the era of electronic driver aids. Connectivity Connectivity Features: None. 🔧 Maintenance Service Intervals Oil Change Interval: Typically every 3,000 miles or 6 months (refer to manual for exact specification based on oil type) Grease Points: Regular lubrication of kingpins, shackle pins, and other suspension/steering components is critical. Intervals typically 1,000-3,000 miles. Fluid Specifications Engine Oil Type: API SF/CD or equivalent, viscosity grade typically 20W-50 or 20W-40 (consult manual for precise recommendation). Coolant Type: Ethylene glycol based antifreeze/coolant mixture, typically 50/50 with distilled water. Brake Fluid Type: DOT 3 or DOT 4 hydraulic brake fluid. Gearbox Oil Type: GL4 Hypoid Gear Oil, SAE 90 (for manual gearbox); OD gearbox would require specific OD fluid. Rear Axle Oil Type: GL5 Hypoid Gear Oil, SAE 90 (or as specified for non-limited slip differential) Known Issues Rust And Corrosion: Common for vehicles of this era, particularly sills, wheel arches, and floor pans. Overheating: Can occur due to aging radiators, worn water pumps, or incorrect coolant levels. Carburetor Tuning: SU carburetors require regular adjustment and balancing. Suspension Wear: Wear in rubber bushings, ball joints, and kingpins can lead to steering looseness and poor handling. Electrical Gremlins: Aging wiring harnesses and connections can lead to intermittent electrical faults. 📚 Vehicle History Brand Heritage Triumph...