🏷️ Basic Information Identification Make: Triumph Model: Herald Year: 1969 Model Variant: 1200 / 12-50 Product Name: Triumph Herald 1200 12-50 1969 Full Service Repair Manual 👋 Introduction Market Position Target Audience: Professional technicians and experienced DIY enthusiasts Key Features Comprehensiveness: Covers everything needed for repair, maintenance, and restoration Accessibility: Instant download eliminates shipping costs and waiting times Expertise Demonstration Information Source: Equivalent to information used by professional technicians and mechanics 📋 Manual Details Coverage Areas Coverage: Comprehensive repair, maintenance, rebuilding, refurbishment, and restoration Page Count Page Count: Not Specified (Implied extensive due to 'Full Service Repair Manual') Manual Type Type: Full Service Repair Manual Language Language: English Format Format: PDF Delivery Delivery Method: Instant Download 📖 Manual Coverage Systems Covered Engine: Detailed repair, diagnostics, and rebuilding of the engine Transmission: Service, repair, and diagnostics of gearbox and clutch Electrical System: Comprehensive troubleshooting and detailed wiring diagrams Chassis And Suspension: Covered, including steering and braking systems Bodywork: Included, with potential for repair and refurbishment procedures Procedures Included Maintenance: Detailed service schedules and routine maintenance procedures Repair: Step-by-step repair instructions for all major components Diagnostics: Extensive diagnostic procedures for various systems Rebuilding: Procedures for complete engine and component rebuilding Refurbishment: Guidance for restoring vehicle condition Technical Depth Depth: Professional technician level, also suitable for advanced DIY mechanics Illustrations: Detailed illustrations, drawings, and photos Clarity: Enlarged insets for detailed part examination Navigation Table Of Contents: Numbered and easy-to-use for quick information retrieval Warnings Notes Cautions Warnings: Critical information highlighted throughout each chapter 📊 Manual Specifications File Format File Type: PDF Print Quality Printability: Full Printable Binding Type Binding: Digital (Downloadable) Paper Type Paper Type: Not Applicable (Digital) Requirements Software Requirements: Adobe PDF Reader & WinRAR Compatibility Operating Systems: All Versions of Windows & Mac Storage Storage Options: Save to hard-drive, burn to CD-ROM ⚙️ Engine Specifications Primary Engine Engine Type: Inline 4-cylinder, OHV Displacement: 1200cc (1.2 Liters) Bore X Stroke: Approx. 73.7 mm x 71.1 mm (Specific figures may vary slightly by engine code) Performance Horsepower: Approximately 40-45 bhp (Gross) at 4500 rpm for the 1200 model Torque: Approx. 67-70 lb-ft at 2500 rpm (Specific figures may vary) Fuel System Carburetor: Typically a single Zenith 36IV or similar downdraft carburetor Fuel Type: Regular Leaded Petrol (Pre-unleaded era) Cooling System Cooling Method: Water-cooled Lubrication Oil Type: API SE/SF or equivalent (refer to manual for exact spec, e.g., SAE 20W/50) 🔧 Transmission Standard Transmission Type: 4-speed manual synchromesh (all gears) Optional Optional Transmission: Optional Laycock de Normanville overdrive on top gear (for 1200 models, designated 1200 O/D) Features Clutch: Single dry plate, hydraulically operated Fluid Requirements Gearbox Oil Type: GL4 Hypoid gear oil (e.g., SAE 90) 📐 Dimensions Exterior Wheelbase: 2134 mm (84 inches) Overall Length: 3810 mm (150 inches) Overall Width: 1524 mm (60 inches) Overall Height: 1270 mm (50 inches) (approx., varies with body style) Weights Kerb Weight: Approx. 830-900 kg (1830-1985 lbs) depending on body style and equipment Gross Vehicle Weight: Not specified, but typically around 1200-1300 kg Wheels And Tires Wheel Size: 13 inch steel wheels Tire Size: Typically 5.50-13 or 155SR13 Bolt Pattern: 4 x 108 mm (4 x 4.25 inches) 🛡️ Safety Features Ratings Crash Safety: Era-appropriate safety standards; modern safety ratings not applicable or available. Active Features Brakes: Front: Disc brakes; Rear: Drum brakes Steering: Worm and roller steering system Passive Features Seatbelts: Optional or basic lap belts depending on original specification 💡 Technology Features Infotainment Audio System: Typically a factory-fitted or dealer-optional AM radio. Driver Assistance Power Steering: Not typically fitted; steering is manual. Connectivity Connectivity Features: None (pre-digital era). 🔧 Maintenance Service Intervals Oil Change Interval: Typically every 3,000-5,000 miles or 6 months (refer to manual for exact specification) Grease Points: Regular chassis lubrication required at multiple points (refer to manual for schedule) Fluid Specifications Coolant: Water/Antifreeze mixture (e.g., 50/50 Ethylene Glycol based) Brake Fluid: DOT 3 or DOT 4 hydraulic brake fluid Known Issues Chassis Corrosion: Prone to rust, particularly around outriggers, sills, and wheel arches due to body-on-chassis design. Engine Wear: Potential for wear in bearings, piston rings, and valve guides with high mileage. Electrical Reliability: Wiring loom can degrade over time; Lucas components may require attention. Transmission Synchromesh: Synchromesh cones can wear, leading to baulking or difficulty engaging gears. 📚 Vehicle History Brand Heritage Manufacturer: Standard-Triumph (later part of British Leyland) Model Evolution Introduction Year: 1959 Design Philosophy: Body-on-chassis construction, independent suspension all round, distinctive 'heraldic' styling Key Variants: Saloon, Estate Car, Coupé, Convertible, Triumph Vitesse (sportier variant) Production Production Period: 1959-1971 Production Location: Coventry, England 🏆 Awards & Recognition Recognitions Historical Significance: Recognized for its innovative construction for its time and distinctive styling.