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Triumph

Triumph Herald 12 50 1959-1971 Workshop Service Repair Manual

Triumph Herald 12 50 1959-1971 Workshop Service Repair Manual

$16.99
$16.99
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Vehicle data plateRef 483605
Brand
Triumph
Vehicle
Cars
Models covered
12, 50, Herald
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 Variant:
12/50
Codes
Engine Code Identifier:
Likely OHV inline-four, specific codes detailed within manual
👋 Introduction
Market Position
Target Audience:
Owners, mechanics, and restorers of Triumph Herald 12/50 models.
Competitive Analysis
Value Proposition:
Provides a critical resource for maintaining and repairing a classic British automobile, enhancing ownership experience and vehicle longevity.
Key Features
Comprehensiveness:
Extremely detailed, covering nearly every aspect of the vehicle's mechanical and electrical systems.
Accessibility:
Instant download format ensures immediate access for urgent repairs or planning.
Visual Aid Quality:
High-quality illustrations, exploded diagrams, and photographs for clear procedural understanding.
📋 Manual Details
Coverage Areas
Model Years Covered:
1959, 1960, 1961, 1962, 1963, 1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971
Page Count
Total Pages:
415
Manual Type
Type:
Workshop Service Repair Manual
Language
Language:
English
Format
File Format:
PDF
📖 Manual Coverage
Systems Covered
Engine Service:
Comprehensive diagnosis, repair, removal, installation, and adjustment of engine components.
Fuel System:
Carburetor service (likely Solex or similar), fuel pump, fuel lines, and tank maintenance.
Cooling System:
Radiator, water pump, thermostat, hoses, and fan service.
Ignition System:
Distributor, coil, spark plugs, wiring, and timing adjustments.
Transmission Manual:
Service, repair, and adjustment of the manual gearbox.
Transmission Overdrive:
Service and operation of any fitted overdrive unit (e.g., Laycock de Normanville).
Clutch:
Removal, installation, adjustment, and service of the clutch assembly.
Driveshafts And Differentials:
Maintenance and repair of driveshafts, universal joints, and the rear axle/differential unit.
Suspension Front:
Service of the independent front suspension, including wishbones, kingpins, and shock absorbers.
Suspension Rear:
Maintenance of the rear axle, leaf springs, and associated components.
Steering:
Service and adjustment of the steering column, linkages, and steering rack/box.
Brakes Hydraulic:
Service of master cylinder, wheel cylinders, brake lines, and fluid replacement.
Brakes Mechanical:
Adjustment and maintenance of the brake shoes, drums, and parking brake mechanism.
Electrical System:
Wiring diagrams, starter motor, generator/alternator, battery, lighting, and ancillary components.
Bodywork And Chassis:
Repair procedures for the unitary construction body, doors, windows, and trim.
Interior:
Information on seats, dashboard, trim panels, and controls.
Heating And Ventilation:
Service of heater matrix, controls, and ducting.
Procedures Included
Routine Maintenance:
Oil changes, filter replacements, lubrication points, and general inspections.
Troubleshooting Diagnostics:
Systematic fault finding for common and uncommon issues.
Disassembly And Assembly:
Step-by-step instructions for removing and refitting all major components.
Adjustments:
Detailed procedures for setting clearances, timing, and control linkages.
Repair Rebuild:
In-depth guidance for rebuilding major mechanical assemblies.
Special Tool Usage:
Identification and illustrated application of necessary special service tools.
Technical Depth
Level Of Detail:
Comprehensive, suitable for both professional mechanics and experienced DIY enthusiasts.
Diagnostic Information:
Includes diagnostic procedures, symptom analysis, and specific troubleshooting charts.
Specification Lists:
Extensive lists of service data, including wear limits and critical measurements.
Pictorial Diagrams:
Abundant with detailed illustrations, exploded diagrams, drawings, and photos.
Torque Specifications:
Extensive torque charts for all critical fasteners and assembly points.
Wear Limits:
Precise wear limits provided for engine components, brake parts, and suspension elements.
📊 Manual Specifications
File Format
Readability:
High-resolution PDF, searchable text for easy navigation.
Print Quality
Printability:
Fully printable, allowing users to print specific sections or the entire manual.
Binding Type
Digital Binding:
Instant Download PDF
Paper Type
Digital Paper Equivalent:
Digital representation of high-quality technical documentation.
Compatibility
Operating Systems:
Windows, Mac, and Linux OS compatible due to PDF format.
Requirements
Software Requirement:
Adobe Reader or compatible PDF viewer.
⚙️ Engine Specifications
Primary Engine
Engine Type:
Overhead Valve (OHV) Inline-Four Cylinder
Displacement:
Approximately 1296 cc (for the 12/50 model, derived from the 1200cc engine with modifications)
Performance
Horsepower Output:
Around 50-60 bhp (specific figures may vary depending on tuning and exact configuration).
Torque Output:
Detailed torque figures for all fasteners and engine sub-assemblies are provided.
Fuel System
Carburetor Type:
Likely a single Solex carburetor (e.g., Solex 32 PICT or similar), manual details specific model and tuning.
Fuel Type:
Petrol (Gasoline), manual will specify octane requirements.
Engine Layout
Configuration:
Front-mounted, longitudinal engine.
🔧 Transmission
Standard
Gearbox Type:
4-speed manual gearbox
Optional
Overdrive Availability:
Optional Laycock de Normanville overdrive (typically affecting 3rd and 4th gears).
Features
Gear Ratios:
Specific gear ratios for standard and overdrive transmissions are detailed in the manual.
📐 Dimensions
Exterior
Wheelbase:
Approx. 2172 mm (85.5 inches)
Length:
Approx. 3734 mm (147 inches)
Weights
Kerb Weight:
Varies by body style, but generally around 800-900 kg (1750-2000 lbs).
🛡️ Safety Features
Ratings
Crash Test Information:
Era-specific safety standards apply; manual focuses on mechanical integrity for safe operation.
Active Features
Braking System:
Hydraulic drum brakes on all four wheels, disc front brakes on 12/50 models.
Passive Features
Chassis Design:
Unitary construction with integrated chassis frame, providing structural rigidity.
💡 Technology Features
Infotainment
Audio System:
Original equipment typically a basic AM radio; manual covers wiring and installation if upgrading.
Driver Assistance
Safety Systems:
Limited by era; emphasis is on mechanical systems ensuring reliable operation.
🔧 Maintenance
Service Intervals
Engine Oil Change:
Typically every 3,000-5,000 miles or 6 months, depending on usage. Manual will provide definitive schedule.
Grease Points:
Regular lubrication of various chassis points (kingpins, shackle pins, etc.) is crucial. Interval detailed in manual.
Fluid Specifications
Engine Oil:
Likely SAE 20W-50 or SAE 30 mineral oil. Manual specifies exact grade and capacity.
Gearbox Oil:
Likely a GL4 rated gear oil, e.g., SAE 90. Manual provides specific type and capacity.
Brake Fluid:
DOT 3 or DOT 4 glycol-based brake fluid. Manual specifies type and replacement interval.
Known Issues
Rust Susceptibility:
Common in classic cars; manual can guide on inspecting and repairing bodywork.
Suspected Wear Items:
Kingpins, suspension bushings, clutch components, and synchronized gearbox components can wear over time. Manual details inspection and replacement.
Carburetor Tuning:
Manual provides detailed procedures for carburetor adjustment and maintenance.
📚 Vehicle History
Brand Heritage
Manufacturer:
Standard-Triumph (later part of British Leyland).
Model Evolution
Development:
The Herald was designed by Giovanni Michelotti and known for its body-on-frame construction and independent suspension. The 12/50 was an upgraded version of the Herald 1200, featuring a larger engine and improved features.
Production
Production Period:
1959-1971 for the Herald range; the 12/50 model specifically launched in 1963.
🏆 Awards & Recognition
Recognitions
Design Awards:
While specific awards for the Herald are not prominently documented, Giovanni Michelotti's design was well-regarded in its time.

Delivery & file format

This is a digital PDF download, not a printed book. After payment the download link appears on your order confirmation page and is emailed to the address you entered. Files open in any PDF reader on phone, tablet or computer and can be printed.

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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