The Complete Official Triumph GT6, GT6+ & GT6 MK III:
1967, 1968, 1969, 1970,
1971, 1972, 1973

riginally published in 1975, The Complete Official Triumph GT6, GT6+ & GT6 MK III: 1967-1973 was prepared in close cooperation with British Leyland Motors in order to provide complete, authentic maintenance and repair information. The Driver's Handbooks at the beginning of this manual are the handbooks that were provided with every new Triumph GT6, GT6+ and GT6 MK III. The Workshop Manual, making up the larger part of this book, is the official factory manual and was originally intended for use by dealer service departments. The publisher has incorporated additional factory procedures and specifications that have become available following the publication of the original factory information.

Includes:

• Triumph GT6 Owner's Manual
• Triumph GT6+ Owner's Manual
• Triumph GT6 MK III Owner's Manual
• Triumph GT6, GT6+ and GT6 MK III Repair Manual

This manual contains emission control information that applies specifically to Triumph GT6, GT6+ and GT6 MK III vehicles manufactured for the United Kingdom and North American markets. Including accurate and comprehensive service information for 1967-1973 GT6, GT6+ and GT6 MK III vehicles, this manual is an indispensable resource for both the professional mechanic and the GT6, GT6+ and GT6 MK III enthusiast.

This manual is an accurate and comprehensive set of service information for Triumph GT6, GT6+ and GT6 MK III models sold in the UK and North America during the model years 1967-1973.

Contents

• Foreword v

Part 1 Official Triumph GT6 Driver's Handbook

Controls, Instruments and Indicators 3
• Seats 5
• Safety Harness 6
• Screen Washer and Ventilation 6
• Driving from New 7
• Overdrive Unit (Optional) 8
• Locks and Keys 8
• Cooling System 9
• Wheels and Tires 10
• Routine Servicing 12
• Electrical System 17
• Running Adjustments 20
• Care of the Bodywork 26
• Lubrication 26
• Circuit 28
• Specification 29

Part 2 Official Triumph GT6+ Driver's Handbook

• Controls, Instruments and Indicators 33
• Windows and Ventilators 35
• Seats and Safety Harness 36
• Locks and Keys 36
• Starting the Engine 37
• Driving from New 38
• Wheels and Tires 38
• Care of the Bodywork 39
• Cooling System 40
• Electrical 41
• Routine Servicing 45
• Emission and Evaporative Control System 53
• Lubrication 54
• General Specification 56

Part 3 Official Triumph GT6 MK III Driver's Handbook

• Controls, Instruments and Indicators 61
• Seats and Safety Harness 65
• Locks and Keys 66
• Heating and Ventilating Systems 67
• Cooling System 68
• Driving from New 69
• Wheels and Tires 70
• Electrical System 71
• Routine Servicing 74
• Brake and Hydraulic System 81
• Emission and Evaporative Control System 83
• Care of Bodywork 85
• Lubrication 85
• General Specification 86

Part 4 Official Triumph GT6, GT6+ and GT6 MK III Workshop Manual

• Group 0
• General Information (Section 1) 92
• Group 1
• Engine (Section 1) 106
• Cooling System (Section 2) 144
• Fuel System (Section 3) 149
• Exhaust System (Section 4) 163
• Emission Control System (Section 5) 165
• Group 2
• Clutch (Section 1) 176
• Gearbox (Section 2) 182
• Overdrive (Section 3) 207
• Propeller Shaft (Section 4) 221
• Group 3
• Rear Axle (Section 1) 226
• Brakes (Section 2) 260
• Wheels and Tires (Section 3) 289
• Group 4
• Suspension (Section 1) 294
• Steering (Section 2) 315
• Group 5
• Chassis (Section 1) 331
• Body (Section 2) 335
• Group 6
• Electrical (Sections 1, 2, 3, and 4) 382