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Triumph GT6 Repair Manual 1966-1973

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🏷️ Basic Information Identification Make: Triumph Model: GT6 Model Years Covered: 1966, 1967, 1968, 1969, 1970, 1971, 1972, 1973 Codes Chassis Codes: GT6 Mk I, GT6 Mk II, GT6 Mk...
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Type: Car
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Sku: 187091
Triumph GT6 Repair Manual 1966-1973Triumph GT6 Repair Manual 1966-1973Triumph GT6 Repair Manual 1966-1973Triumph GT6 Repair Manual 1966-1973
🏷️ Basic Information
Identification
Make:
Triumph
Model:
GT6
Model Years Covered:
1966, 1967, 1968, 1969, 1970, 1971, 1972, 1973
Codes
Chassis Codes:
GT6 Mk I, GT6 Mk II, GT6 Mk III
👋 Introduction
Market Position
Positioning:
A premium, dedicated service manual specifically for the Triumph GT6, distinguishing itself from generic aftermarket publications.
Competitive Analysis
Comparison:
Explicitly stated as superior to Chilton's or Haynes manuals, emphasizing its model-specific completeness and accuracy.
Key Features
Ease Of Use:
Designed to be an 'EASY to use guide'.
Completeness:
Covers 'every part' of the GT6, 'in and out'.
Delivery:
Instant delivery, eliminating wait times associated with physical media.
📋 Manual Details
Coverage Areas
Primary Coverage:
Complete servicing and repair of all Triumph GT6 models from 1966-1973.
Page Count
Total Pages:
700+
Manual Type
Type:
Service Manual / Repair Manual
Language
Language:
English
Format
File Format:
PDF
📖 Manual Coverage
Systems Covered
Engine Mechanical:
Camshaft, camshaft position sensor (if applicable to later versions or common aftermarket upgrades documented).
Transmission Drivetrain:
Transmission control cable, torque converter clutch.
Brakes:
Brake system, brake booster, brake master cylinder, front brake, rear brake, brake pedal, parking brake, parking brake cable, parking brake lever, brake actuator, brake fluid.
Suspension Steering:
Front suspension system, rear suspension system, front suspension arm, front shock absorber, rear coil spring, rear shock absorber assembly, steering system, steering column, power steering, steering sensor, front wheel alignment, rear wheel alignment.
Electrical Lighting:
Ignition system, charging system, generator assembly, starter assembly, starter switch, starter motor, lighting system, headlamp assembly, license plate lamp assembly, side turn signal lamp assembly, rear combination lamp assembly, horn, horn button assembly, wiper & washer system, windshield wiper motor assembly, washer nozzle, rear wiper rubber, windshield wiper switch assembly.
Body Interior:
Fender panel mudguard, back door, back door garnish, rear bumper, front bumper, hood, front door, rear door, quarter window assembly, windshield glass, rear door glass weatherstrip, front door glass weatherstrip, roof headlining, instrument panel, seat, seat belt, front seat belt, rear seat belt, inner rear view mirror assembly, outer rear view mirror assembly, power mirror control system, sun roof system, floor shift assembly.
Climate Control:
Air conditioning system, heater & air conditioner, heater radiator assembly, air conditioning blower assembly, air conditioner refrigerant, air conditioning amplifier assembly, cooling fan system.
Fuel System:
Fuel pump, fuel tank, fuel injector (likely referring to fuel delivery components rather than specific injectors in earlier models, or addressing potential fuel injection conversions/later market specs).
Emission Control Systems:
Covers emission control systems, which would include systems like PCV (Positive Crankcase Ventilation) and potentially catalytic converters for later models or specific markets.
Wheels Tires:
Tire & wheel system, tire and wheel specifications, wheel alignment procedures.
Safety Restraints
Airbags:
Supplemental restraint system, airbag sensor rear, airbag sensor front, seat position airbag sensor, side airbag sensor assembly, front seat airbag assembly, passenger airbag assembly, curtain shield airbag assembly, center air bag sensor assembly.
Seatbelts:
Seat belt, front seat belt, rear seat belt, seat belt warning system.
Other Safety:
Skid control sensor, yaw rate sensor, parkneutral position switch, power door lock control system, floor shift parking lock cable, shift lock system.
Procedures Included
Maintenance:
Scheduled maintenance, lubrication, fluid changes, filter replacements.
Diagnostics:
Troubleshooting guides for all major systems, common issues and solutions.
Repair:
Detailed step-by-step repair procedures for all components and systems, including complete engine rebuild, transmission overhaul, suspension and brake component replacement, electrical system repairs, body panel repair and alignment.
Installation:
Procedures for component installation and replacement.
Body Repair:
Body repair procedures are included, indicating coverage for rust repair, panel replacement, and alignment.
Wiring Diagrams:
Wiring diagrams are explicitly mentioned, crucial for electrical system diagnosis and repair.
Technical Depth
Depth:
Comprehensive, covering everything from basic maintenance to complete engine and transmission rebuilds. Includes detailed specifications, diagrams, and troubleshooting.
Wire Harness:
Wire harness repair included.
Emission Control:
Emission control systems covered.
📊 Manual Specifications
File Format
Digital Format:
PDF
Print Quality
Printable:
Yes, printable.
Searchable:
Assumed searchable based on PDF format, enabling efficient information retrieval.
Binding Type
Binding:
N/A (Digital Format)
Paper Type
Paper:
N/A (Digital Format)
Compatibility
Operating Systems:
Win/Mac
⚙️ Engine Specifications
Primary Engine
Engine Type:
Inline 6-cylinder (SOHC)
Engine Displacement:
2.0 Liters (1998 cc) for Mk I & Mk II; 2.5 Liters (2498 cc) for Mk III
Performance
Horsepower Mk1 Mk2:
Approx. 95-104 bhp (gross)
Horsepower Mk3:
Approx. 104-127 bhp (gross)
Torque Mk1 Mk2:
Approx. 116-127 lb-ft (gross)
Torque Mk3:
Approx. 140-150 lb-ft (gross)
Fuel System
Carburetion Mk1 Mk2:
Twin Stromberg CD150 or Zenith Stromberg 150 CD carburetors
Carburetion Mk3:
Twin Stromberg CD175 or Zenith Stromberg 175 CD-2 carburetors
Fuel Type:
Unleaded gasoline (later models, and with modifications for earlier ones)
🔧 Transmission
Standard
Transmission Type:
4-speed Manual with Overdrive (Laycock de Normanville electric overdrive standard on some models/options)
Optional
Optional Transmission:
3-speed Automatic (less common)
Features
Overdrive Operation:
Electric or vacuum operated overdrive on top gear (3rd and 4th).
Fluid Specifications
Manual Transmission Fluid:
GL-4 gear oil, SAE 75W-90 or 80W-90 (refer to manual for specific types and quantities).
Automatic Transmission Fluid:
Dexron III or equivalent (for automatic models).
📐 Dimensions
Exterior
Body Style:
2+2 Coupe
Wheelbase:
82 inches (2083 mm)
Length:
156 inches (3962 mm)
Width:
60 inches (1524 mm)
Height:
49.75 inches (1264 mm)
Weights
Curb Weight:
Approx. 2200-2400 lbs (1000-1090 kg) depending on model.
Gross Vehicle Weight Rating:
Not explicitly listed, but derived from chassis and payload capacity.
🛡️ Safety Features
Ratings
Crash Test Results:
No formal crash test ratings available from modern agencies due to the era of production. Safety features are characteristic of the period.
Active Features
Braking System:
Front disc brakes, rear drum brakes.
Steering:
Rack and pinion steering, unassisted unless optional power steering was fitted.
Passive Features
Seatbelts:
Lap belts standard; shoulder belts optional or standard on later models/markets.
Construction:
Body-on-frame construction with a separate chassis.
💡 Technology Features
Infotainment
Audio System:
Basic AM radio, often with optional FM or cassette player depending on the specific vehicle and market. Covered under 'Audio & Visual System' in the manual.
Driver Assistance
Driver Aids:
Minimal by modern standards. Features like overdrive and power steering (optional) enhanced the driving experience.
Connectivity
Connectivity Features:
N/A (No modern connectivity features).
🔧 Maintenance
Service Intervals
Oil Change Interval:
Typically every 3,000-5,000 miles (4,800-8,000 km) or 6-12 months, depending on usage. Refer to manual for precise recommendations.
Tune Up Interval:
Recommended annually or every 6,000-12,000 miles (9,600-19,300 km).
Fluid Specifications
Engine Oil Specification:
20W-50 or 20W-50 HD (refer to manual for exact API service classification and capacity, typically around 5 quarts).
Coolant Specification:
Ethylene glycol-based antifreeze mixed with distilled water (50/50 ratio recommended). Capacity varies, typically 10-12 pints.
Brake Fluid Specification:
DOT 3 or DOT 4.
Known Issues
Common Wear Items:
Bushings (suspension, steering), clutch components, brake wear, exhaust systems, rust (especially in sills, wheel arches, and chassis outriggers).
Engine Specific:
Potential for core plug corrosion, carburetor tuning issues, and overheating if cooling system maintenance is neglected.
Electrical Issues:
Aging wiring harnesses, Lucas electrical components can be a source of intermittent faults.
📚 Vehicle History
Brand Heritage
Heritage:
Triumph is a storied British marque with a legacy of producing sporty and stylish cars.
Model Evolution
Evolution Overview:
The GT6 was derived from the Spitfire chassis, featuring a more powerful six-cylinder engine and a fastback coupe body style, offering a more upscale and performance-oriented experience.
Mk1 Introduction:
Launched in 1966, featuring the 2.0L straight-six engine.
Mk2 Introduction:
Introduced in 1968 with revised styling and improved engine cooling.
Mk3 Introduction:
Arrived in 1970 with significant styling changes (particularly the revised front end) and the larger 2.5L engine.
Production
Production Years:
1966-1973
Manufacturing Location:
Coventry, England.
🏆 Awards & Recognition
Recognitions
Automotive Press:
While specific awards are not commonly cited, the GT6 was generally well-received for its performance and styling in its class.
Certifications
Certifications:
N/A
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