Triumph Wedge Owners Association
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A - Engine TSBs

TSB/
Doc
No.
Date
Issued
Applies
To
Subject
Related
TSBs/
Docs
Notes

74-A-2
Aug-74
Picture
Carburettor Vent Valve Adjustment
S1040
pp. 28-29

Issued for the TR6 and Spitfire, but applicable to TR7/TR8 carbs.

75-A-2
May-75
Picture
Cylinder Head Torque at PDI
75-A-2A
76-A-7
77-A-3
77-A-12
79-A-1
79-A-2
T80/029
T81/13
 

75-A-2A
May-75
Picture
Cylinder Head Torque
75-A-2
76-A-7
77-A-3
77-A-12
79-A-1
79-A-2
T80/029
T81/13
 

75-A-3
May-75
Picture
Change of Spark Plugs
77-A-2
 

76-A-1
Jan-76
Picture
Coolant Loss
76-A-7
76-A-9
76-A-10
76-A-12
 

76-A-4
Mar-76
Picture
Rear Sump Bolts
 
 

76-A-7
Jun-76
Picture
Coolant Loss
75-A-2
75-A-2A
76-A-9
77-A-3
77-A-12
79-A-1
79-A-2
T80/029
T81/13
Covers how to seal a new head gasket during installation, and the correct method for filling the cooling system

76-A-9
Jun-76
Picture
Coolant Loss - Bar's Leak Treatment
76-A-1
76-A-7

 

76-A-10
Oct-76
Picture
Engine Thermostats
76-A-1
76-A-7

76-A-9
76-A-12
 

76-A-11
Oct-76
Picture
Automatic Choke Assembly
 
California spec. only

76-A-12
Oct-76
Picture
Loss of Cooling System
76-A-1
76-A-7

76-A-9
76-A-10
Parts change at engine no. CL27860

77-A-1
Jan-77
Picture
Crankshaft Spigot Bush Squeal
77-D-6
1975-76 TR7s with the bronze bushing

77-A-2
Jan-77
Picture
Spark Plug Specification 1977 Model
75-A-3
 

77-A-3
Jan-77
Picture
Cylinder Head Gasket
75-A-2
75-A-2A
76-A-7
77-A-12
79-A-1
79-A-2
T80/029
T81/13
Parts change at engine no. CL28551

77-A-4
Apr-77
Picture
Engine Mounting Bolts
 
 

77-A-7
Jun-77
Picture
Engine Dipstick
 
Parts change at engine no. CL28290

77-A-8
Jul-77
Picture
Camshaft Cover Oil Leaks
 
 

77-A-9
Jul-77
Picture
Throttle Activated Micro Switch
 
 

77-A-10
Aug-77
Picture
Air Compressor Drive Belt Adjustment
 
Parts change at VIN ACW13088

77-A-11
Oct-77
Picture
Catalytic Convertor Replacement
 
 

77-A-12
Dec-77
Picture
Cylinder Head Bolts and Gasket
75-A-2
75-A-2A
76-A-7

77-A-3
79-A-1
79-A-2
T80/029
T81/13
Parts change at engine no. CV10330

SER 65
1978
Picture
Pre-Delivery Inspection - Emission Control Related Checks
 
Includes 1978 TR8

78-A-1
Apr-78
Picture
Electronic Ignition Systems
 
Diagnostic checks for Lucas Opus electronic ignition

78-A-2
Aug-78
Picture
Alternator Drive Belt
 
 

78-A-3
Nov-78
Picture
Oil Filter GFE-147
 
 

79-A-1
Feb-79
Picture
Cylinder Head Torque Specification
 75-A-2
75-A-2A
76-A-7
77-A-3
77-A-12
79-A-2
T80/029
T81/13
Parts change at engine no. CV10330


79-A-2
Apr-79
Picture
Cylinder Head Gaskets
75-A-2
75-A-2A
76-A-7
77-A-3
77-A-12
79-A-1
T80/029
T81/13
 

79-A-4
Oct-79
Picture
Water Pump Installation
 
 

79-A-5
Dec-79
Picture
Exhaust Sound - Gear Change
 
 

S1054/80
1980
Picture
Engine Specifications - 1980 Model Year
 
 

T80/004
May-80
Picture
Unipart Spark Plugs
 
 

T80/015
May-80
Picture
Oversized Tappets TR7 Cylinder Head
 
 

T80/016
May-80
Picture
V8 Engine Cylinder Bolt Threads
 
 

T80/017
May-80
Picture
Drive Belt Tension
 
 

T80/022
Sep-80
Picture
Cooling System Filler Plug - New Part Number
T80/027
 

T80/027
Nov-80
Picture
Cooling System Filler Plug - New Part Number
T80/022
 

T80/029
Dec-80
Picture
1980 Maintenance Schedules
75-A-2
75-A-2A
76-A-7
77-A-3
77-A-12
79-A-1
79-A-2
T81/13
 

T81/03
Jan-81
Picture
Cooling System Overheating
 
 

T81/10
May-81
Picture
Lambda Oxygen Sensor Contamination
 
 Fuel Injected TR7 & TR8

T81/13
Jun-81
Picture
Cylinder Head Torque P.D.I.
75-A-2
75-A-2A
76-A-7
77-A-3
77-A-12
79-A-1
79-A-2
T80/029
 

T81/16
Sep-81
Picture
Service Action F476 - Radiator Action
 
Applies to 1980 and earlier models only

T81/17
Sep-81
Picture
E.F.I. Injector Contamination
 
Fuel Injected TR7 & TR8

T81/18
Oct-81
Picture
E.F.I. Epitest Check Sheets
 
Fuel Injected TR7 & TR8

​Triumph Wedge Owners Association (TWOA)
TWOA is an Affiliate Chapter of the Vintage Triumph Register
  • Home
  • About/Join
    • Club Benefits
    • Sample Newsletter
    • Fuel Injection >
      • The TR7 ECU - Bosch
      • The TR8 ECU - Lucas
      • Heated O2 Sensors
      • Inside an FI Tank
      • Noid Test Light
    • Join or Renew Online
    • zzzz Join or Renew Online
    • Join or Renew by Mail
    • Board of Directors
    • Bill Sweeting Remembered >
      • Articles >
        • FASD Technical Specifications
        • Members Only Articles
        • TR7 4-Speed Overdrive Conversion
        • TR8 Cooling Fan Circuit
    • Contact Us
  • Tech/Parts
    • Dealer Documents >
      • Memos
      • Recall Campaigns
      • Technical Service Bulletins >
        • A - Engine
        • B - Electrical
        • C - Body
        • D - Transmission
        • E - Paint
        • Z - Recalls
        • F - Chassis
        • G - Miscellaneous
        • H - Air Conditioning
        • TSB Numbers Decoded
      • Training
      • Service Tools
    • Model Information >
      • Brochures
      • Deciphering The Wedge >
        • Component Serial Numbers
        • Paint and Trim Codes
        • VIN and Component Serial Number Locations
        • VIN Numbers Decoded
      • Labels and Decals
      • TR7 Special Editions >
        • Limited Edition
        • Spider
        • Southern Skies
        • 30th Anniversary Edition
      • TR8 >
        • BL Motorsports: Hurdwell Memo
        • California Air Resources Board Emissions Certifications
      • Wedge Colours
    • Parts Suppliers
    • Cottage Industry Parts
    • TWOA Parts
    • TWOA Tool Rentals >
      • TR7 Head Honcho
      • TR7 Head Honcho in Action
      • Fuel Injection Tools >
        • Gizmo
        • Looking Glass
  • Resources and Services
    • Reproduction Suggestions
    • Cars For Sale
    • Cars Wanted
    • Parts For Sale
    • Parts Wanted
    • Harris Mann Art Prints
    • Mailing List, Forums & Clubs
    • Gems: TR8CCA+WWWedge
    • Tech: Best of the Web
    • Wedge List Files
  • Events
    • Calendar of Upcoming Events
    • 2020 TWOA Virtual Car Show Results
    • Past Event Photos >
      • Britain on the Green 2015
      • The Kastner Cup 2015
      • Triumphest 2014
      • VTR National Convention 2014
      • The Gathering Dobson NC 2013
      • Dobson The Gathering 2012
      • South Central VTR Regional 2012
      • Triumphest 2012
      • Maryland British Car Day 2011
      • Dobson Gathering 2010
      • Roadster Factory 2010
      • British Invasion 2009
      • Roadster Factory 2009
    • VTR National Awards History
  • Members
    • Newsletters
    • TWOA Parts Store
    • Sun Visor Information
    • Regalia
    • Official TWOA Documents
    • TWOA Poster
    • FI hose replacement
    • FASD Photos
    • Rear End Spring Experiment
    • Bushing Tests
    • Bushing Buddy - Installation Tool
    • Odd's Engine Removal Tools