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Triumph

Triumph Herald 1200 12-50 1959-1971 All Service Repair Manual

Triumph Herald 1200 12-50 1959-1971 All Service Repair Manual

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Vehicle data plateRef 451030
Brand
Triumph
Vehicle
Cars
Models covered
Herald, Herald 12-50, Herald 1200
Years
1959, 1960, 1961, 1962, 1963, 1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971
Format
PDF, searchable, print-ready
Delivery
Instant download after checkout
Language
English

What happens after you pay

  • Download link opens on the order page immediately
  • The same link is emailed to you β€” re-download any time
  • Open on phone, tablet or PC; print only the pages you need
  • Not sure it covers your model year? Ask us before you buy
🏷️ Basic Information
Identification
Make:
Triumph
Model:
Herald
Sub Model:
1200 / 12-50
Production Years:
1959-1971
Codes
Chassis Codes:
HA, HB, HC, HD, HE
πŸ‘‹ Introduction
Market Position
Target Audience:
Triumph Herald owners, classic car enthusiasts, independent mechanics, DIY restorers
Competitive Analysis
Value Proposition:
Provides comprehensive, actionable repair and maintenance information, enabling owners to service their vehicles independently and cost-effectively.
Key Features
Convenience:
Instant download, accessible on multiple devices, allows for anytime/anywhere repairs.
Cost Saving:
Empowers users to save on labor costs by performing repairs themselves.
Knowledge Enhancement:
Builds in-depth understanding of vehicle systems and fosters self-reliance for repairs.
Accessibility:
Eliminates the need to search physical bookstores for out-of-print or rare manuals.
πŸ“‹ Manual Details
Coverage Areas
Primary Coverage:
Triumph Herald 1200 and 12-50 models
Specific Years Covered:
1959, 1960, 1961, 1962, 1963, 1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971
Page Count
Estimated Pages:
Comprehensive (exact page count not specified, typical for this era would be 200-400+ pages)
Manual Type
Type:
Service and Repair Manual / Workshop Manual
Language
Language:
English
Format
Format:
Downloadable PDF
πŸ“– Manual Coverage
Systems Covered
Engine:
Complete overhaul, tuning, fuel system, cooling system, lubrication
Transmission:
Manual gearbox (4-speed), clutch, driveline, differential
Brakes:
Hydraulic front disc brakes, rear drum brakes, master cylinder, wheel cylinders, braking system overhaul
Electrical System:
Wiring diagrams, ignition system, lighting, starting system, charging system, accessories
Suspension:
Front independent suspension (transverse leaf spring), rear live axle with semi-elliptic springs, shock absorbers
Steering:
Rack and pinion steering system, steering column, linkages
Chassis Body:
Body construction, frame, doors, panels, trim, glass, weather sealing
Fuel System:
Carburetor (e.g., Zenith Stromberg, SU), fuel pump, fuel tank, lines
Cooling System:
Radiator, fan, water pump, thermostat, coolant flow
Emission System:
Early emission control systems (if applicable for later models)
Restraint System:
Seat belts (later models), general body structure considerations
Axle:
Rear axle assembly, half-shafts, hub assemblies
Procedures Included
Maintenance:
General maintenance, periodic lubrication, fluid changes, filter replacements
Troubleshooting:
Systematic fault finding for common and uncommon issues
Repair:
Step-by-step instructions for component disassembly, repair, and reassembly
Refurbishment Renovation:
Guidance on restoring and renovating worn or damaged components
Electrical Diagnosis:
Troubleshooting electrical faults using wiring diagrams and test procedures
Engine Rebuild:
Detailed instructions for complete engine overhaul and rebuilding
Transmission Overhaul:
Procedures for dismantling, servicing, and reassembling the gearbox and clutch
Brake System Service:
Brake pad/shoe replacement, bleeding, hydraulic component replacement
Technical Depth
Depth:
Comprehensive, covering everything from basic routine maintenance to complete engine and transmission rebuilds, including diagnostics and troubleshooting.
πŸ“Š Manual Specifications
File Format
Format:
PDF
Software Requirements:
Adobe PDF Reader
Compression Software:
WinZip (or equivalent)
Operating System Compatibility:
All Windows versions, Mac OS
Print Quality
Quality:
Digital (suitable for printing key sections or the entire manual)
Binding Type
Binding:
N/A (Digital download)
Paper Type
Paper:
N/A (Digital download)
βš™οΈ Engine Specifications
Primary Engine
Type:
Inline 4-cylinder, Overhead Valve (OHV)
Displacement:
1147 cc (70.0 cu in)
Bore X Stroke:
73.7 mm x 66.0 mm (2.90 in x 2.60 in)
Compression Ratio:
Approx. 8.5:1 (varies slightly by model year and tune)
Performance
Horsepower:
Approx. 47-50 bhp (35-37 kW) at around 4800-5000 rpm
Torque:
Approx. 62-64 lb-ft (84-87 Nm) at around 2500-3000 rpm
Fuel System
Carburetor:
Single Zenith Stromberg CD175 or SU H2/HS2 carburetor (model dependent)
Fuel Type:
Leaded or Unleaded Petrol (later models may have provision for unleaded, lead substitute recommended for earlier engines)
Engine Control System
Ignition Type:
Distributor-based ignition system
πŸ”§ Transmission
Standard
Type:
4-speed manual gearbox
Gear Ratios:
Specific ratios vary slightly by year, typically direct drive top gear.
Clutch Type:
Dry single plate diaphragm spring clutch
Features
Synchromesh:
Synchromesh on all forward gears
πŸ“ Dimensions
Exterior
Wheelbase:
2032 mm (80.0 in)
Front Track:
1220 mm (48.0 in)
Rear Track:
1194 mm (47.0 in)
Weights
Kerb Weight:
Approx. 800-870 kg (1764-1918 lbs), depending on body style and equipment.
πŸ›‘οΈ Safety Features
Ratings
Crash Safety:
As per 1960s design standards; later models may have had basic seat belt anchorages.
Active Features
Braking System:
Front disc brakes, rear drum brakes
Passive Features
Body Structure:
Body-on-frame construction with integrated unitary body panels.
πŸ’‘ Technology Features
Infotainment
Radio:
Optional period-appropriate AM radio.
Driver Assistance
Features:
No electronic driver assistance features typical of modern vehicles. Focus is on mechanical systems.
Connectivity
Features:
N/A (No modern connectivity features).
πŸ”§ Maintenance
Service Intervals
Oil Change:
Typically every 3,000 miles or 6 months (consult manual for specific grade)
Grease Points:
Regular lubrication of chassis grease points (e.g., suspension pivots, steering joints) at every oil change or as specified.
Tune Up:
Recommended tune-ups (ignition points, spark plugs, carburetor adjustment) every 6,000-10,000 miles.
Fluid Specifications
Engine Oil:
API SF/CD or SG/CD equivalent (e.g., 20W-50 or 10W-40 depending on climate and engine condition). Early manuals may specify straight SAE 30 or 20W-30.
Gearbox Oil:
API GL-4 SAE 90 Hypoid Gear Oil
Differential Oil:
API GL-4 SAE 90 Hypoid Gear Oil
Coolant:
Ethylene glycol-based antifreeze mixed with distilled water (typically 50/50 ratio)
Brake Fluid:
DOT 3 or DOT 4 hydraulic brake fluid
Known Issues
Rust:
Prone to rust, especially in sills, wheel arches, and floor pans.
Engine Oil Leaks:
Common oil leaks from the crankshaft seals, valve cover, and oil pan.
Carburetor Icing:
Can be susceptible to carburetor icing in cold, damp conditions.
Suspect Steering Components:
Wear in steering rack boots, track rod ends, and ball joints can lead to looseness.
πŸ“š Vehicle History
Brand Heritage
Manufacturer:
Triumph Motor Company, a British manufacturer known for sports cars and saloons.
Model Evolution
Introduction:
Launched in 1959 as a compact, affordable car with innovative features for its time.
Key Variants:
Saloon, Estate Car (Wagon), Convertible, Coupe. The 12-50 designation often referred to a de-tuned 1200 engine and minor trim changes.
Production
Manufacturing Location:
Coventry, England
Production End:
1971
πŸ† Awards & Recognition
Recognitions
Historical Reception:
Praised for its comfortable ride, spacious interior for its class, and unique styling. Generally considered a solid, practical small car of its era.
Ratings
Reliability Perception:
Reliability is generally good when properly maintained, but as a classic vehicle, requires consistent attention.

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