🏷️ Basic Information Identification Make: Triumph Model: Herald Sub Model: 1200 / 12/50 Production Years Covered: 1959, 1960, 1961, 1962, 1963, 1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971 👋 Introduction Market Position Niche: Classic British sports saloon, appealing to enthusiasts and restorers. Competitive Analysis Competitors: Ford Anglia, Austin Cambridge, Morris Oxford, Vauxhall Victor. Key Features Design Philosophy: Unique 'Y'-frame chassis with separate body panels, facilitating repairs and allowing for diverse body styles (saloon, coupe, convertible, estate). Target Audience: Owners of Triumph Herald vehicles, mechanics, automotive restoration specialists, and DIY enthusiasts. 📋 Manual Details Coverage Areas Manual Type: Workshop Service Manual for Repair Manual Scope: Comprehensive repair, maintenance, adjustments, removal, and installation of vehicle components. Page Count Page Count: 415 Language Language: English Format File Format: PDF Accessibility: Instant Download Printability: Yes Software Requirement: Adobe Reader Operating System Compatibility: Windows, Mac, Linux OS 📖 Manual Coverage Systems Covered Engine System: Detailed procedures for engine overhaul, tuning, troubleshooting, and component replacement. Includes ignition, fuel, cooling, and lubrication systems. Transmission System: Coverage for gearbox removal, repair, adjustment, and clutch system servicing. Suspension Steering System: Information on front and rear suspension components, steering gear, wheel alignment, and related adjustments. Braking System: Detailed instructions for hydraulic brake system maintenance, including master cylinder, wheel cylinders, brake shoes/pads, and adjustment procedures. Electrical System: Wiring diagrams, troubleshooting for lighting, ignition, starting, charging systems, and accessory circuits. Bodywork Chassis: Guidance on body panel removal/installation, door mechanisms, window winding, and chassis maintenance. Fuel System: Details on fuel tank, lines, carburetor (likely Stromberg or SU), and fuel pump servicing. Cooling System: Information on radiator, water pump, thermostat, and hoses for proper engine temperature regulation. Chassis Frame: Specific attention to the 'Y' frame construction, including inspection, potential repairs, and mounting points. Procedures Included Maintenance: Periodic maintenance schedules, fluid changes, lubrication points, filter replacements. Troubleshooting: Systematic diagnostic procedures for common and uncommon faults, with symptom-based troubleshooting guides. Repair Rebuild: Step-by-step instructions for disassembling, repairing, and reassembling major vehicle components. Adjustment: Precise instructions for adjusting ignition timing, carburetors, brakes, clutch, and suspension. Installation Removal: Detailed guides for removing and installing components, including torque specifications and necessary precautions. Wheel Alignment: Detailed steps for checking and adjusting wheel alignment parameters crucial for handling. Paint Bodywork Repair: Guidance on body panel alignment and repair techniques, acknowledging the separate panel design. Technical Depth Depth: Comprehensive, covering everything from basic tune-ups to complete engine and transmission rebuilds. Suitable for both professional mechanics and experienced DIY enthusiasts. Diagrams Illustrations: Features detailed pictorial diagrams, exploded views, and photographs to guide users through procedures. Special Tools: References specific Triumph special service tools, including illustrations of their usage. Specifications Data: Includes service data, factory specifications, wear limits, and tightening torques for all critical fasteners and components. Diagnostic Tools: Information on using basic diagnostic tools and techniques appropriate for the vehicle's era. 📊 Manual Specifications File Format Digital Quality: High-quality PDF, ensuring clear readability of text and images. Searchability: Likely text-searchable, enhancing user experience for finding specific information. Download Speed Indication: Instant download available upon successful payment. Print Quality Print Ability: Pages are printable, allowing for physical copies for workshop use. Binding Type Binding: N/A (Digital Format) Paper Type Paper Type: N/A (Digital Format) ⚙️ Engine Specifications Primary Engine Engine Type: Inline 4-cylinder, overhead valve (OHV) Displacement: 1147 cc (for 1200 model), potentially slightly larger for 12/50 if referring to a specific variant. Performance Horsepower: Approximately 40-50 bhp (depending on specific tune and model variant, 12/50 may have slightly more). Torque: Likely in the range of 60-70 lb-ft. Fuel System Carburetion: Single or twin Stromberg or SU carburetors, depending on the specific model and market. Fuel Type: Leaded or unleaded gasoline (depending on year and potential modifications). 🔧 Transmission Standard Type: 4-speed manual transmission. Optional Overdrive: Optional Laycock de Normanville overdrive unit was available on some models. Features Clutch: Single dry plate clutch. 📐 Dimensions Exterior Wheelbase: Approximately 82 inches (2083 mm) Track Width Front: Approximately 47.5 inches (1207 mm) Track Width Rear: Approximately 46 inches (1168 mm) Weights Curb Weight: Around 1800-1900 lbs (816-862 kg), varying with body style. 🛡️ Safety Features Ratings Crash Safety: Limited official crash test data available for this era. Construction relies on a robust separate chassis. Passive Features Seatbelts: Often optional or retrofitted, not standard equipment in early years. Chassis Construction: Separate 'Y' shaped chassis provides a strong foundation. Body panels are attached to this. 💡 Technology Features Infotainment Radio: Optional transistor radio, typically a period-correct Lucas or similar unit. Driver Assistance Features: N/A (basic automotive design of the era). 🔧 Maintenance Service Intervals Oil Change: Typically every 3,000 miles or 6 months, though consult manual for exact intervals. Grease Points: Regular lubrication of suspension and steering components is crucial. Fluid Specifications Engine Oil: SAE 20W-50 or 20W-40, depending on ambient temperature (consult manual for specifics, e.g.,...