๐ท๏ธ Basic Information Identification Make: Triumph Model: GT6 Generation: Mark I, Mark II, Mark III Production Years: 1966-1973 ๐ Introduction Market Position Target Audience: Triumph GT6 owners, mechanics, technicians, and automotive enthusiasts seeking to maintain and repair their vehicles. Key Features Completeness: Comprehensive factory-level information covering all aspects of the vehicle. Accuracy: Based on original manufacturer data, ensuring technical accuracy. Value Proposition Cost Effectiveness: Provides detailed repair and maintenance information at a significantly lower cost than dealership service or individual chapter purchases. Accessibility: Instant download format allows immediate access to critical information. Competitive Analysis Contemporary Competitors: MG MGB GT, Datsun 240Z, Alfa Romeo Giulia GT, Fiat Dino Coupe. ๐ Manual Details Coverage Applicable Years: 1966, 1967, 1968, 1969, 1970, 1971, 1972, 1973 Coverage Areas: General Maintenance, Troubleshooting, Engine Service/Repair, Transmission Service/Repair, Brake System, Wiring Diagram, Electrical System, Suspension, Periodic Lubrication, Steering, Cooling System, Fuel Injection, Fuel System, Emission System, Heater/Air Conditioner, Engine Control System, Chassis/Body, Restraint System, Interior, Differential/Drive, Axle Technical Data: Includes original manufacturer's technical data, circuits, and diagrams. Format Manual Type: Factory Service Repair Manual Language: English File Format: PDF Delivery Method: Instant Download Print Quality: High Quality Printable Software Requirements: Adobe PDF Reader, WinZip ๐ Manual Coverage Systems Covered Powertrain: Engine, Transmission, Clutch, Drive Axles, Differential Chassis: Suspension (Front & Rear), Steering System, Brake System (Front & Rear), Wheels & Tires Electrical: Wiring Diagrams, Lighting, Ignition System, Charging System, Starting System, Gauges, Accessories, Engine Control System Body And Interior: Body Panels, Doors, Glass, Seats, Trim, HVAC System, Restraint Systems Fuel Injection System: Details on the fuel injection system if applicable to later models or specific variants. Cooling System: Radiator, fan, water pump, thermostat, and coolant passages. Emission System: Details on emissions control components and adjustments relevant to the applicable years. Chassis Body: Frame and body structural components, mounting points, and bodywork repairs. Interior: Dashboard, seating, trim, carpeting, and related components. Restraint System: Seat belts and mounting hardware. Drive Differential Axle: Rear axle assembly, differential, drive shafts, and U-joints. Procedures Included Maintenance: General Maintenance, Periodic Lubrication, Fluid Checks and Changes, Filter Replacements, Tune-Ups Repair And Rebuild: Engine Rebuild, Transmission Overhaul, Brake System Overhaul, Suspension Component Replacement, Steering Component Repair Diagnostics: Troubleshooting Guides, Fault Diagnosis for Major Systems, Electrical System Diagnostics Assembly Disassembly: Step-by-step instructions for dismantling and reassembling major vehicle components. Technical Depth Diagnostic Tools: Information on using standard automotive tools and specialized Triumph procedures Specifications: Torque Specifications, Clearances, Timing Settings, Fluid Capacities, Electrical Specifications ๐ Manual Specifications File Format File Size: Variable, potentially requiring unzipping for larger files. Print Quality Printability: Designed for high-quality printing of individual pages or sections. Binding Type Digital Format: PDF format is suitable for digital viewing, searching, and printing. Paper Type N A: N/A (Digital Product) โ๏ธ Engine Specifications Primary Engine Engine Type: Inline 6-cylinder (Straight-6), Overhead Valve (OHV) Performance Displacement: 2.0 Litre (1998 cc) Carburetion: Typically fitted with twin Stromberg or SU carburetors (specifics detailed in manual) Horsepower: Approx. 95-104 bhp (brake horsepower) depending on the specific GT6 mark and tuning. Torque: Approx. 117-120 lb-ft (pound-feet) depending on the specific GT6 mark. Fuel System Fuel Type: Unleaded or Leaded Gasoline (depending on market and year, manual will specify appropriate use) Engine Service Valve Adjustment: Procedures and specifications for valve clearance adjustment included. ๐ง Transmission Standard Type: 4-speed Manual with Overdrive (Laycock de Normanville overdrive often standard or optional) Features Overdrive Operation: Details on operation and servicing of the overdrive unit. Fluid Specifications Transmission Fluid: Specific fluid type and capacity (e.g., GL-4 Gear Oil) will be detailed. ๐ Dimensions Exterior Wheelbase: Approx. 82 inches (2083 mm) Overall Length: Approx. 155 inches (3937 mm) Weights Curb Weight: Approx. 2050 - 2250 lbs (930 - 1020 kg) depending on specification ๐ก๏ธ Safety Features Passive Features Seatbelts: Information on seatbelt inspection and maintenance. Body Construction: Details on the unitary construction and chassis frame of the GT6. ๐ก Technology Features Infotainment Radio: Original cars may have fitted AM or AM/FM radios; manual will cover basic electrical connections and troubleshooting for these. Driver Assistance Braking Assist: Front disc brakes, rear drum brakes. Manual will detail maintenance and repair of the hydraulic brake system. ๐ง Maintenance Service Intervals Oil Change Interval: Typically every 3,000 miles or 6 months, with specific guidance provided in the manual. Tune Up Interval: Regular ignition system checks, carburetor adjustments, and valve clearance checks are crucial for optimal performance. Fluid Specifications Engine Oil Type: Specific viscosity (e.g., 20W-50) and API service classification will be detailed in the manual. Consideration for leaded vs. unleaded fuel additives may be mentioned. Coolant: Standard ethylene glycol-based antifreeze mixture (typically 50/50 with distilled water) is recommended. Brake Fluid: DOT 3 or DOT 4 brake fluid specification typically required for the hydraulic braking system. Known Issues Common Wear Items: Wear on suspension bushings, kingpins, clutch components, and gearbox synchromesh are...
Typically fitted with twin Stromberg or SU carburetors (specifics detailed in manual)
Horsepower:
Approx. 95-104 bhp (brake horsepower) depending on the specific GT6 mark and tuning.
Torque:
Approx. 117-120 lb-ft (pound-feet) depending on the specific GT6 mark.
Fuel System
Fuel Type:
Unleaded or Leaded Gasoline (depending on market and year, manual will specify appropriate use)
Engine Service
Valve Adjustment:
Procedures and specifications for valve clearance adjustment included.
๐ง Transmission
Standard
Type:
4-speed Manual with Overdrive (Laycock de Normanville overdrive often standard or optional)
Features
Overdrive Operation:
Details on operation and servicing of the overdrive unit.
Fluid Specifications
Transmission Fluid:
Specific fluid type and capacity (e.g., GL-4 Gear Oil) will be detailed.
๐ Dimensions
Exterior
Wheelbase:
Approx. 82 inches (2083 mm)
Overall Length:
Approx. 155 inches (3937 mm)
Weights
Curb Weight:
Approx. 2050 - 2250 lbs (930 - 1020 kg) depending on specification
๐ก๏ธ Safety Features
Passive Features
Seatbelts:
Information on seatbelt inspection and maintenance.
Body Construction:
Details on the unitary construction and chassis frame of the GT6.
๐ก Technology Features
Infotainment
Radio:
Original cars may have fitted AM or AM/FM radios; manual will cover basic electrical connections and troubleshooting for these.
Driver Assistance
Braking Assist:
Front disc brakes, rear drum brakes. Manual will detail maintenance and repair of the hydraulic brake system.
๐ง Maintenance
Service Intervals
Oil Change Interval:
Typically every 3,000 miles or 6 months, with specific guidance provided in the manual.
Tune Up Interval:
Regular ignition system checks, carburetor adjustments, and valve clearance checks are crucial for optimal performance.
Fluid Specifications
Engine Oil Type:
Specific viscosity (e.g., 20W-50) and API service classification will be detailed in the manual. Consideration for leaded vs. unleaded fuel additives may be mentioned.
Coolant:
Standard ethylene glycol-based antifreeze mixture (typically 50/50 with distilled water) is recommended.
Brake Fluid:
DOT 3 or DOT 4 brake fluid specification typically required for the hydraulic braking system.
Known Issues
Common Wear Items:
Wear on suspension bushings, kingpins, clutch components, and gearbox synchromesh are common in vehicles of this age. Electrical connections and wiring can also be a source of issues.
Body Corrosion:
Rust is a significant concern for classic British sports cars; comprehensive bodywork repair procedures and rust prevention advice would be invaluable.
Carburetor Tuning:
Proper synchronization and tuning of the twin carburetors are essential for smooth operation and performance.
๐ Vehicle History
Brand Heritage
Manufacturer:
Standard-Triumph (later part of British Leyland)
Model Evolution
Development:
Developed from the Triumph Vitesse convertible by grafting the GT6 coupe body onto the Vitesse chassis and drivetrain, featuring a more powerful engine.
Marks:
GT6 Mark I (1966โ1968), GT6 Mark II (1968โ1970), GT6 Mark III (1970โ1973)