🏷️ Basic Information Identification Make: Triumph Model: Herald Year: 1965 Sub Model: 1200 / 12-50 👋 Introduction Market Position Target Audience: Classic car enthusiasts, Triumph Herald owners, mechanics, restorers Competitive Analysis Value Proposition: Provides professional-level repair and maintenance information, enabling comprehensive vehicle care and restoration. Key Features Illustrations: Detailed illustrations, drawings, and photos for visual guidance Instructional Format: Numbered instructions, notes, cautions, and warnings for clarity and safety Diagnostics Integration: Combined troubleshooting and electrical service procedures with wiring diagrams 📋 Manual Details Coverage Areas Coverage: Full service, repair, maintenance, rebuilding, refurbishing, restoration Page Count Estimated Pages: Detailed, likely hundreds of pages Manual Type Type: Full Service Repair Manual Language Language: English Format Format: PDF (Digital Download) 📖 Manual Coverage Systems Covered Engine: Engine overhaul, tuning, lubrication, cooling, fuel system, exhaust system Transmission: Gearbox repair, clutch, drive shafts, differential Electrical: Wiring diagrams, ignition system, charging system, lighting, instruments, starter motor, dynamo/alternator Brakes: Hydraulic system, drum brakes, master cylinder, wheel cylinders, brake adjustments Suspension: Front and rear suspension, shock absorbers, springs, bushings, steering linkage Bodywork: Body panel repairs, chassis lubrication, doors, windows, trim, convertible top (if applicable) Procedures Included Maintenance: Scheduled maintenance, oil changes, filter replacements, tune-ups, lubrication points Repair: Step-by-step repair procedures for all major vehicle systems Diagnostics: Troubleshooting guides for common problems, diagnostic flowcharts Rebuild: Detailed procedures for engine and gearbox rebuilds Technical Depth Depth: Comprehensive, suitable for professional technicians and experienced DIY mechanics 📊 Manual Specifications File Format File Type: PDF Print Quality Printability: Full Printable Binding Type Binding: N/A (Digital Download) Paper Type Paper: N/A (Digital Download) Software Requirements Reader: Adobe PDF Reader Extraction: WinRAR (or similar compression utility) Compatibility Operating Systems: All Versions of Windows & Mac ⚙️ Engine Specifications Primary Engine Engine Type: Inline 4-cylinder, Overhead Valve (OHV) Displacement: 1200 cc (1.2 Litre) Performance Horsepower: Approx. 40-48 bhp (depending on specific tuning and variant) Torque: Typically around 65-70 lb-ft Fuel System Carburetion: Single SU Carburettor (e.g., HS2) or Zenith Stromberg Fuel Type: Leaded petrol (historically), modern unleaded with additives or hardened valve seats may be required 🔧 Transmission Standard Gearbox Type: 4-speed manual synchromesh on 3rd and 4th gears Optional Gearbox Options: Laycock de Normanville overdrive available on some models (e.g., 12-50) Features Clutch: Single dry plate 📐 Dimensions Exterior Body Styles: Saloon, Estate, Convertible, Van Weights Kerb Weight: Approx. 1800 - 1900 lbs (816 - 862 kg) 🛡️ Safety Features Ratings Crash Safety: Era-appropriate safety standards; lacks modern passive safety features like airbags and ABS. Focus on chassis design for occupant protection. Active Features Braking System: Hydraulically operated drum brakes on all wheels Passive Features Seatbelts: Optional or dealer-fitted, not standard equipment in 1965 💡 Technology Features Infotainment Audio System: Optional AM radio, typically mono. Driver Assistance Assistance Features: None by modern standards. Focus is on basic mechanical operation. 🔧 Maintenance Service Intervals Oil Change: Every 3,000 miles or 6 months Grease Points: Regular chassis lubrication is critical, typically at 1,000-2,000 mile intervals Fluid Specifications Engine Oil: SAE 20W-50 (or SAE 30 for warmer climates), API SG or higher equivalent. Historically, straight mineral oils were used. Gearbox Oil: GL-4 Hypoid Gear Oil (e.g., Castrol EPX 80W-90) - ensure non-EP additives for synchromesh compatibility. Brake Fluid: DOT 3 or DOT 4 hydraulic fluid Known Issues Rust: Prone to corrosion, especially around sills, wheel arches, and floor pans due to construction methods. Cooling System: Overheating can occur if the radiator, water pump, or thermostat are not maintained. Hoses can degrade. Electrical Reliability: Original wiring can be brittle; issues with earth connections are common. Dynamo charging system requires regular checks. Steering And Suspension: Wear in kingpins, trunnions, and steering joints can lead to looseness and play. Regular lubrication is vital. 📚 Vehicle History Brand Heritage Manufacturer: Triumph Motor Company, part of the British Leyland conglomerate during its later years. Model Evolution Herald Development: Designed by Giovanni Michelotti, known for its distinctive styling and avant-garde engineering for its time, including a separate chassis and independent suspension all around. Production Production Period: 1959-1971 Manufacturing Location: Coventry, England 🏆 Awards & Recognition Recognitions Design Awards: Recognized for its innovative and modern styling by designer Giovanni Michelotti.