Below are the titles and TSB numbers for all the 1977 Technical Service Bulletins for MG and Austin vehicles published by British Leyland.
Category A – Engine #
All 1977 category A, Engine TSBs for Austin & MG.
| TSB Number | Subject | Date | View/Download | Applies To |
|---|---|---|---|---|
| 77-A-1 | Coolant Leakage – Cylinder Head Gasket | February 1977 | 77-A-1 | MGB |
| 77-A-2 | Rocker Shaft Lubrication | April 1977 | 77-A-2 | MGB |
| 77-A-3 | Cooling Fans | September 1977 | 77-A-3 | 1977 MGB |
| 77-A-4 | Catalytic Converter Replacement | October 1977 | 77-A-4 | All Models |
| 77-A-4A | Catalytic Converter Replacement | December 1977 | 77-A-4A | All Models |
Category B – Electrical Systems/Parts #
All 1977 category B, Electrical systems/parts TSBs for Austin & MG.
| TSB Number | Subject | Date | View/Download | Applies To |
|---|---|---|---|---|
| 77-B-1 | 1977 Wiring Diagram | January 1977 | 77-B-1 | MGB |
| 77-B-1A | 1977 Wiring Diagram | May 1977 | 77-B-1A | MGB |
| 77-B-1B | 1977 Wiring Diagram | June 1977 | 77-B-1B | MGB |
| 77-B-2 | Operation Of Anti-Run On Control Valve | April 1977 | 77-B-2 | MGB |
| 77-B-3 | Anti-Run On Valve Vent Hose | April 1977 | 77-B-3 | MGB |
| 77-B-4 | Servicing Of Electronic Modules For Built-In Electronic Distributors | June 1977 | 77-B-4 | All Models |
| 77-B-5 | Emergency Starting Only With Use Of External Equipment | June 1977 | 77-B-5 | All Models |
| 77-B-6 | Cooling Fan Thermal Cut-Out Installation | August 1977 | 77-B-6 | MGB |
| 77-B-7 | Batteries | September 1977 | 77-B-7 | All Models |
Category C – Car Body #
All 1977 category C, car body TSBs for Austin & MG.
| TSB Number | Subject | Date | View/Download | Applies To |
|---|---|---|---|---|
| 77-C-1 | Windshield Installation | March 1977 | 77-C-1 | MGB Roadster |
| 77-C-1A | Windshield Installation | April 1977 | 77-C-1A | MGB Roadster |
| 77-C-2 | Windshield Glass Failure | June 1977 | 77-C-2 | MGB |
Category D – Gearbox (Transmission) #
All 1977 category D, Gearbox (Transmission) TSBs for Austin & MG.
| TSB Number | Subject | Date | View/Download | Applies To |
|---|---|---|---|---|
| 77-D-1 | Gearbox Fouling Cross-member | January 1977 | 77-D-1 | Midget 1500 |
| 77-D-2 | Oil Leakage From the Gearbox Top Cover | January 1977 | 77-D-2 | Midget 1500 |
Category E – Paint/Paintwork #
All 1977 category E, paint/paintwork TSBs for Austin & MG.
| TSB Number | Subject | Date | View/Download | Applies To |
|---|---|---|---|---|
| 77-E-1 | Paint Spotting | October 1977 | 77-E-1 | All Models |
Category G – Miscellaneous #
All 1977 category G, miscellaneous TSBs for Austin & MG.
| TSB Number | Subject | Date | View/Download | Applies To |
|---|---|---|---|---|
| 77-G-1 | Removal Of Unleaded Gasoline Labels | May 1977 | 77-G-1 | All Models |
Other Materials #
I’ve built this website and spent time on the knowledge base to bring together a lot of information I have collected from around the internet. The intent is making it easy to find rather than having to know about and have skills with search engine query terms to get what you were looking for. Please make use of the knowledge base.
