BL Technical Service Bulletins 1970s Section B

Technical Service Bulletins

Index 1970s

Section B Electrical

Bulletin Number Date Model Range Subject
3-B-1 1 February 1970 Austin America Deflector Shield – HAC 657
3-B-2 1 February 1970 Austin America Distributor Waterproofing
3-B-3 1 March 1970 MGB and MGB/GT Starter Motor Water Ingress
3-B-4 1 March 1970 All 1970 Models Wiring Diagrams
3-B-5 1 March 1970 Austin America Hard Starting
3-B-6 May, 1970 All Models Horn Maintenance
71-B-7 January, 1971 MGB, MG Mdiget Ignition Locks
71-B-8 January, 1971 All Models Battery Claims
71-B-8_issue2 7 April 1971 Austin – MG Battery Service
71-B-9 April, 1971 Austin America, MGB Alternator/Regulator Repairs
71-B-10 June, 1971 MGB Battery Equipment
71-B-11 September, 1971 Austin America (Air Conditioned) Lucas Alternators
71-B-12 November, 1971 Austin America Fresh Air Heater Controls Outer Cable Retention
72-B-1 March, 1972 MGB and Midget – January 1972 Productoin and Onwards Wiring Diagram – Seat Belt Warning System
72-B-2     Lucas ACR Alternators
72-B-3 November, 1972 All Batteries
72-B-4 November, 1972 All Models Lucas Wiper Motors
72-B-5 January, 1973 All Models Surge Protection Device for 15, 16, 17 & 18 ACR Alternators
73-B-1 July, 1973 All Alternators
76-B-1      
76-B-2 June, 1976 MGB & Midget, 1975/76 – Catalyst Equipped Elimination of Catalyst Service Warning Light
76-B-3 August, 1976 All Models Windtone Horn Adjustment
76-B-4 October, 1976 Midget 1500, MGB Servicing of Electronic Modules for In-Built Electronic Distributors