Triumph Technical Service Bulletins

This information is from a scraped website. The original website that hosted this information was Triumphs Only, and no longer exists.

In an effort to better serve you, we are now offering a complete, full-text Technical Service Bulletins, as they originally were provided to Triumph dealers directly from British Leyland. We hope that this new resource, never before made available directly to Triumph enthusiasts, will help provide more detailed, in-depth information about your model.

Mechanical
NO.SUBJECT:MODELS:
73-F-1Steering Lock StopStag
74-F-1Rear Half Shaft Hub Flange AttachmentTR-6
75-F-1Rear Wheel CamberTriumph TR6
72-F-2Lower Steering Swivel LubricationAll Models
1-F-7Suspension Geometry DataTriumph – All Models
1-F-4Stop Light StwitchesSpitfire Mk III, GT-6+
1-F-3Disc BrakesSpitfire and GT6
1-F-2Revised Tire PressuresGT-6+
1-F-1Wire WheelsGT-6, Spitfire, TR-250 & TR-4A

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Transmissions and Differentials
NO.SUBJECT:MODELS:
1-D-1Rear Gearbox Oil SealsAll Models
72-A-6Flywheel BoltsSpitfire
1-D-12Gearbox Mainshaft CirclipSpitfire and GT-6+
1-D-11Tapered Dog Teeth (Gearbox)GT-6 Plus and TR-6
1-D-10Constant Pinion & Main ShaftsTR-6
1-D-9Rear Axle Universal JointTR-6
1-D-8Gearbox Selector Rail ModificationSpitfire, GT-6 Plus
1-D-7Countershaft Gear 1st and ReverseTR-4, TR-4 A, TR-250, TR-6, T-2000
1-D-6Notchy Gear SelectionTR-6
1-D-5Gear Box 3rd Speed GearGT6 & GT6+
1-D-4‘D’ Type OverdriveSpitfire Mark III & GT6
1-D-3Mainshaft Thrust WashersGT6+ & Spitfire Mark III
72-D-3Borg Warner Automatic Transmission Fluid Level CheckStag
73-D-1Gearbox Thrust WasherAll
73-D-2“J” Type Overdrive UnitAll Models
73-D-1AGearbox Thrust Washers All
73-D-3Gearbox Input Shaft and Constant GearsStag, TR-6
73-D-3AGearbox Input Shaft and Constant GearsStag; TR-6
73-D-5Revised First Gear RatioTR-6
73-D-7Gear Lever RattleTR-6 and Stag (Standard Transmission)
73-D-8Clutch Pedal LubricationAll Models
73-D-10Rear Axel and GearboxAll models

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Body
NO.SUBJECT:MODELS:
1-C-6Campaign Number CCL693TR-6
71-C-11Recall Campaign A.414 Head Lamp CentresTriumph TR-6
71-C-12Recall Campaign A.414 Head Lamp CentresTriumph TR-6, All 1969, 70 & 71 Models
75-C-7Hood Stay ModificationsTR7

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Electrical
NO.SUBJECT:MODELS:
1-B-1Windshield Wiper Arm MountingTR-6
71-B-3Alternator/Regulator RepairsSpitfire Mark IV, TR-6 and GT-6 Mark III
72-B-6ACR AlternatorsAll Models
72-D-4Inhibitor Switch (Borg Warner Transmission)Stag
74-A-5Twin Contact Breaker Ignition Distributor NoiseTriumph Stag
71-B-6Distributor Contact CapStag
72-B-7BatteriesAll
letter2Lucas Battery Normal Recharge RatesAll Models
72-G-5Seat Belt Warning SystemAll 1972 Triumph Vehicles
72-B-5Surge Protection Device for 15, 16,17 & 17 ACR AlternatorsAll Models
73-B-1Ballast ResistorStag
72-B-5aAlternator Control Relay Type 16RAStag
73-Z-1Modification Code #A.423 Distributor Thermostatic Vacuum Valve Hook Up1973 Triumph Spitfire MK IV Vehicle Identification # Range FM-263U to FM-2538U
74-B-1Windscreen Wiper Arm Setting ProcedureTR-6 & Spitfire
74-G-5Seat BeltInterlock Test Unit Type SBM-1X (Pektron) Part #BLT.5006All
74-A-3Oil Filter Sealing RingStag
1-A-1Ignition Timing Emission Control SystemsSpitfire, GT-6 & TR-250
1-A-3Cylinder Head TorqueGT 6+
1-A-4Engine Sealing BlockSpitfire & GT 6+ TR 6
75-A-1PistonsAll Models
1-A-5Oil Pump ScreenTR-6 and GT-6+
1-A-6Accelerator LinkageGT 6+
71-A-14Valve SpringsStag
71-A-15Engine Oil Pressure Switch Part No. 121398All four and six cylinder engines. Triumph GT-6 Mark III, TR-6, Spitfire Mark IV.
72-A-3Inlet Valves1972 Spitfire MK IV
72-A-5Stromberg Carburetor BreakageSpitfire MK IV
72-A-4Oil Filter Element – Parts StockStag
73-A-8Oil Filter RemovalTR-6
73-A-6Cylinder Head TorqueStag
74-A-6Cylinder Head Tappet BoresStag
letter2Air Conditioning Kits TR-6
74-H-1Anti-FreezeAll
74-G-4Owner’s Identification PlateAll
73-A-3Cylinder GasketsStag
74-A-2Operation No. 12-29-11 (Sect. F) Cylinder Head Remove & RefitSpitfire 1500

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Miscellaneous
NO.SUBJECT:MODELS:
74-A-1Exhaust Gas Recirculation (E.G.R.) System1974 TR-6 and Spitfire 1500
74-G-1Operation Repair Time ChangeSpitfire 1500
73-G-9Exhaust Emission Gas Analyzing Equipment, Infra-red Non Dispersive Type All
72-G-11Sun Automotive Equipment Program All Models
72-F-1Brake Squeal TR-6
72-C-2Replacement Door Glass Part Number V038 TR-6
73-A-5High Idle Condition All
73-C-1Vyback Rear Windows All Convertibles
73-C-2Preliminary Information 1974 Vehicle Seat Belt Interlock System TR-6 – Spitfire
72-C-1Hood Catch Release Stag
71-G-23Safety Recall Campaign – #A405 Windhield Washer Valve Spitfire MK III FDU31254L to FDU92802L 
Spitfire MK IV FKI to FK7000 
GT6+ KC50002L to KC82938L 
GT6 MKIII KFI to KF650
71-G-24Coolaire Air Conditioning Kits TR-6
letter3Safety Recall Owner’s LetterStag
71-G-19Safety Recall (Owner’s Letter Attached) Stag
1-G-11Triumph Tool Board —
1-G-6Workshop Manual Part Number 512947 and Part Number 511243 GT-6+ and Spitfire, RespectivelyGT-6+ and Spitfire
71-A-11Fuel Pump Inertia Cut Out Stag
71-A-13Crankshaft Main Bearings Cap Bolts Spitfire Mark IV, GT-6 Mark III and TR-6
71-A-12Cooling System Stag
1-A-9Single Stromberg Carburetors Spitfire Mark IIIGT6+ KC50002L to KC82938L 
GT6 MKIII KFI to KF650

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