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Triumph

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

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

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Vehicle data plateRef 438553
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 — 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
Model Variants:
1200, 12-50
Production Years Covered:
1959-1971
Generation
Herald Generation:
First Generation (1959–1971)
👋 Introduction
Market Position
Vehicle Segment:
Compact/Small Family Car
Brand Heritage:
Triumph Motorcycles and Cars, a marque with a long history of British automotive engineering and a distinct character.
Competitive Analysis
Key Competitors:
Austin A40 Farina, Ford Anglia, Morris Minor, Vauxhall Viva HA
Key Features
Design Philosophy:
The Herald was designed by Giovanni Michelotti, featuring a distinctive Italian styling with a separate chassis construction and a distinctively angled grille.
Body Styles:
Available in saloon, coupe, convertible, estate, and van variants, offering versatility.
Manual Value Proposition:
An essential resource for maintaining the classic Triumph Herald, enabling owners to perform repairs and upkeep efficiently and cost-effectively.
📋 Manual Details
Coverage Areas
Manual Title:
Triumph Herald 1200 12-50 1959-1971 Service Repair Manual
Covered Model Years:
1959, 1960, 1961, 1962, 1963, 1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971
Covered Variants:
All styles of Triumph Herald 1200 and 12-50
Page Count
Estimated Page Count:
Hundreds of pages (printable in entirety or by section)
Manual Type
Manual Type:
Workshop Service Repair Manual
Source Type:
Official Full Factory Service Manual
Language
Language:
English
Format
File Format:
PDF
Delivery Method:
Digital Download
📖 Manual Coverage
Systems Covered
Engine Service:
Comprehensive engine repair and overhaul procedures
Transmission Service:
Service and repair for the gearbox and drivetrain components
Brake System:
Detailed coverage of hydraulic and mechanical braking systems
Electrical System:
Diagnosis, troubleshooting, and repair of the entire electrical system, including detailed wiring diagrams
Suspension:
Front and rear suspension service and alignment procedures
Steering:
Service and repair for the steering mechanism
Cooling System:
Radiator, fan, thermostat, and coolant system maintenance
Fuel System:
Carburetor, fuel pump, and fuel lines service
Chassis Body:
Bodywork repairs, chassis maintenance, and structural information
Interior:
Trim, upholstery, and interior component repair
Differential Drive:
Rear axle and differential service
Axle:
Front and rear axle servicing
Restraint System:
Information pertaining to seat belts and other restraint components
Emission System:
Details on emission control systems (relevant for later models within the range)
Heater Air Conditioning:
Service and repair of the heating system
Procedures Included
General Maintenance:
Routine maintenance tasks and schedules
Troubleshooting:
Systematic diagnosis and resolution of common problems
Periodic Lubrication:
Lubrication points and schedules
Disassembly Reassembly:
Step-by-step instructions for complete disassembly and reassembly of components
Wiring Diagrams:
Detailed electrical wiring diagrams for ease of use in diagnosing electrical issues
Technical Depth
Depth Of Coverage:
Complete, in-depth, from basic maintenance to complete rebuilds
Target Audience:
Suitable for both do-it-yourself enthusiasts and experienced mechanics
📊 Manual Specifications
File Format
Printability:
Printable without any restriction
Software Requirements:
Adobe PDF Reader
Print Quality
Illustration Quality:
Hundreds of photos and illustrations, enlarged insets for detailed part examination
Binding Type
Binding:
Digital download (printable, can be burned to CD-ROM)
Paper Type
Paper Type:
N/A (Digital PDF)
⚙️ Engine Specifications
Primary Engine
Engine Type:
Inline 4-cylinder, OHV (Overhead Valve)
Engine Type Details
Engine Displacement 1200:
1208 cc (73.7 cu in)
Engine Displacement 12-50:
1147 cc (70.0 cu in) initially, later revised to 1296cc for some models (check specific model year)
Performance 1200
Horsepower 1200:
Approx. 38-40 bhp at 4200 rpm
Torque 1200:
Approx. 60-62 lb-ft at 2500 rpm
Performance 12-50
Horsepower 12-50:
Approx. 45-48 bhp at 4500 rpm (for the twin-carburetor version)
Fuel System
Fuel Delivery 1200:
Single Zenith or SU Carburettor
Fuel Delivery 12-50:
Twin SU Carburettors (often 'HS2' or similar)
Fuel Type
Fuel Type:
Leaded Petrol (Gasoline) - Octane rating as per manual recommendation (typically 97 RON or equivalent)
🔧 Transmission
Standard
Transmission Type:
4-speed manual
Optional
Overdrive:
Optional Laycock de Normanville overdrive available on some models (typically 4th gear).
Features
Clutch Type:
Single dry plate diaphragm spring clutch
Gear Ratios
Gear Ratios:
Specific ratios detailed within the manual for each gear and final drive.
📐 Dimensions
Exterior
Wheelbase:
Approx. 82 inches (2083 mm)
Length:
Approx. 154 inches (3912 mm)
Width:
Approx. 60 inches (1524 mm)
Height:
Approx. 50 inches (1270 mm) (Saloon)
Weights
Kerb Weight:
Approx. 1750 - 1900 lbs (794 - 862 kg) depending on body style and equipment.
🛡️ Safety Features
Passive Features
Chassis Design:
Body-on-frame construction, contributing to structural integrity.
Seatbelts:
Provision for seat belts; often optional or fitted later by owners.
Ratings
Crash Safety:
Modern crash safety standards were not prevalent during its production. Structural rigidity is key, detailed in chassis section of manual.
💡 Technology Features
Infotainment
Radio:
Optional factory-fitted or dealer-fitted radios were available, typically AM. Manual may cover basic radio maintenance or antenna specifics.
Driver Assistance
Driver Aids:
No electronic driver assistance systems were fitted as standard. Focus is on mechanical reliability and driver control.
Connectivity
Connectivity Features:
N/A - This vehicle predates modern connectivity features.
🔧 Maintenance
Service Intervals
Oil Change Interval:
Typically every 3,000 miles or 6 months, as detailed in the manual.
Grease Points:
Regular greasing of suspension and steering components is crucial, with specific intervals and grease types outlined in the manual.
Fluid Specifications
Engine Oil Specification:
20W/50 or 20W/40 multigrade engine oil (as per manual, subject to ambient temperature).
Coolant Specification:
Water/antifreeze mixture (typically 50/50). Manual will specify appropriate antifreeze type.
Brake Fluid Specification:
DOT 3 or DOT 4 hydraulic brake fluid. Manual will specify.
Gearbox Oil Specification:
GL4 Hypoid Gear Oil (e.g., EP 80W/90). Manual will confirm.
Differential Oil Specification:
GL5 Hypoid Gear Oil (e.g., EP 90).
Known Issues
Common Wear Items:
Kingpins and bushes, tie rod ends, clutch wear, water pump seals, rear wheel cylinders.
Body Corrosion:
Prone to rust, particularly around wheel arches, sills, and floor pans. Regular inspection and preventative treatment are vital.
Engine Carburetion:
Carburettor tuning can be sensitive; the manual provides essential guidance.
📚 Vehicle History
Brand Heritage
Manufacturer:
Standard-Triumph (later part of British Leyland)
Model Evolution
Herald Development:
The Herald was designed to offer a modern, stylish, and practical compact car, replacing older Standard models. It featured a unique chassis that allowed for easy body replacement or modification, leading to various body styles.
Production
Production Period:
1959 to 1971
Production Location:
Coventry, England
🏆 Awards & Recognition
Recognitions
Automotive Press:
The Herald was generally well-received for its styling and comfortable ride, though its performance was considered modest compared to some rivals.

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Check the model year and engine before you buy

Manufacturers change procedures, wiring and part numbers between model years and engine options. If your VIN plate shows a year or engine code that is not listed on the data plate above, contact us with the model, year and VIN and we will confirm coverage before you order.

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