“I believe that some owners either forget or are simply not aware of the fact that virtually all mass produced items have production changes, supercessions, and simple substitutions from time to time during the course of a production run. This can be confusing and frustrating for an owner of a car that is at least 25 years distant from the memory of what went on where and when it was built”
Read more at …. https://www.britishcarforum.com/bobmuenchausen/22801.html
MGB tips mods and maintenance 