🏷️ Basic Information Identification Make: Triumph Model: Herald Model Variant: 1200, 12-50 Production Years: 1959-1971 Manual Product Name: Triumph Herald 1200 12-50 1959-1971 WSM Service Repair Manual Codes Chassis Code: GHN1/GHN2 (Saloon/Coupe/Convertible) 👋 Introduction Market Position Market Position: The Triumph Herald was a popular British small family car known for its distinctive styling and robust engineering, catering to owners who valued reliability and ease of maintenance. Competitive Analysis Competitive Analysis: Competed with vehicles like the Ford Anglia, Morris Minor, and Austin A40 Farina, offering a more upmarket feel and unique chassis design. Key Features Key Features: Unique 'scaffold' chassis providing structural integrity and ease of body repair, spacious interior for its class, and distinctive convertible/coupe options. Manual Value Proposition Manual Value Proposition: Empowers owners to perform their own maintenance and repairs, saving significant costs and ensuring the longevity of their classic Triumph Herald. 📋 Manual Details Coverage Areas Vehicles Covered: Triumph Herald 1200 and 12-50 models from 1959 to 1971 Page Count Page Count Estimate: Varies by specific publication, typically 300-600 pages for a comprehensive WSM Manual Type Manual Type: Workshop Service Manual (WSM) / Service Repair Manual Language Language: English Format File Format: PDF Delivery Method: Instant Download 📖 Manual Coverage Systems Covered Engine: Yes, detailed diagnostics, repair, and overhaul procedures for the 1147cc and 1296cc engines Transmission: Yes, including manual gearbox (4-speed with optional overdrive), clutch, and driveshafts Brakes: Yes, covering hydraulic system, front disc and rear drum brakes, bleeding, and component replacement Suspension: Yes, including front independent suspension (trailing links, coil springs, telescopic dampers) and rear live axle with leaf springs Steering: Yes, rack and pinion steering system, column and linkage adjustments Electrical System: Yes, comprehensive wiring diagrams, starter, generator/alternator, ignition system, lighting, and accessories Fuel System: Yes, including fuel tank, pump, carburettors (Zenith/SU), and fuel lines Cooling System: Yes, radiator, water pump, thermostat, and heater matrix Exhaust System: Yes, manifold, pipes, silencer, and mounting Bodywork: Yes, structural components, doors, boot, bonnet, glass, and trim Chassis: Yes, the unique 'scaffold' chassis design and its maintenance Procedures Included Routine Maintenance: Yes, oil changes, filter replacement, tune-ups, lubrication points, and fluid checks Troubleshooting: Yes, diagnostic procedures for common faults and symptoms Repair: Yes, step-by-step instructions for component removal, repair, and reinstallation Overhaul: Yes, detailed procedures for engine, gearbox, and other major component overhauls Wiring Diagrams: Yes, comprehensive and clear wiring diagrams for all electrical systems Technical Depth Technical Depth: Comprehensive, covering everything from basic maintenance to complete engine and transmission rebuilds 📊 Manual Specifications File Format File Format: PDF Readability: High quality, designed for clear viewing and printing Print Quality Printability: Full printable pages, allowing users to print specific sections or the entire manual Binding Type Binding Type Digital: N/A (Digital Download) Paper Type Paper Type Digital: N/A (Digital Download) Software Requirements Software Requirements: Adobe PDF Reader Compatibility Operating Systems: Compatible with all versions of Windows and Mac ⚙️ Engine Specifications Primary Engine Engine Code Herald 1200: Standard engine in Herald 1200 was the 1147cc OHV inline-4 Engine Code Herald 12-50: The Herald 12-50 featured the 1296cc OHV inline-4 engine Performance 1147Cc Horsepower 1147Cc: Approximately 39-46 bhp (depending on tune and carburetion) Torque 1147Cc: Approx. 63-67 lb-ft at 2500-3000 rpm Performance 1296Cc Horsepower 1296Cc: Approximately 50-54 bhp Torque 1296Cc: Approx. 70-75 lb-ft at 3000 rpm Fuel System Carburettor Options: Single Zenith 36IV or SU H2 carburettor on 1200; often twin SU HS2 on 12-50 models Fuel Type: Leaded gasoline (petrol) during its production era. Unleaded conversion considerations may be found in advanced sections. Lubrication Oil Type Recommendation: API SE or SF classification, SAE 20W/50 is generally recommended for ambient temperatures Oil Capacity: Approximately 4.5 litres (4.8 US quarts) including filter 🔧 Transmission Standard Transmission Type Standard: 4-speed manual gearbox Optional Transmission Type Optional: Optional Laycock de Normanville overdrive (usually on 4th gear) for 1200 models Features Gear Ratios: Detailed gear ratios for all gears and overdrive available in the manual Clutch Clutch Type: Single dry plate diaphragm spring clutch Fluid Specifications Gearbox Oil Type: GL4 80W/90 gear oil is commonly used, but manual will specify original recommendations (e.g., EP 90) Clutch Fluid Clutch Fluid Type: DOT 3 or DOT 4 brake fluid 📐 Dimensions Exterior Wheelbase: 82 inches (2083 mm) Length: Approx. 154 inches (3912 mm) Width: Approx. 62 inches (1575 mm) Height: Approx. 50 inches (1270 mm) for saloon, slightly less for convertible Weights Kerb Weight: Approx. 1750-1900 lbs (794-862 kg) depending on body style and equipment Gross Vehicle Weight: Refer to manual for specific GVW ratings Wheels Tires Wheel Size: 13 inch wheels Tire Size Standard: 5.20 x 13 or 5.60 x 13 (cross-ply), radial equivalents may vary Bolt Pattern: 4 x 108 mm (4 x 4.25 inches) 🛡️ Safety Features Ratings Safety Ratings Era: Safety standards were significantly different in the 1960s; expect basic passive safety...