(Although I'm curious as to why one bolt was imperial and the other metric...)

Friend a couple of years ago acquired an early MG B. It needed some work, mostly keeping it going. One piece of work - I forget what - required dismantling something on the side of the engine. But the engineers had thought of that! There were holes in the wheel-well for accessing the requisite bolts without pulling the engine. :-)

Wade.

It's a Japanese car; everything should be metric (except the seatbelt mounts).

Wade.