I had the 1100. I also remember having to re-gap the points every 300 miles. If you happen to forget the car would definitely remind you!
Didn’t it also take 50 weight oil. I can remember changing the oil once and put 10 w 30 in it. Every morning when I started it up it would fog the entire estate.
I think I still have a Chilton’s manual. A must if you own any British Leyland automobile.
I think pretty much everything over there used 20/50 during that time. not so sure about now, I haven’t lived there for 20 years and I guess a lot has changed. the worst car I ever owned there was an alfa romeo guilietta, the oil control rings had failed and it was blowing vast quantities oil out of the crankcase dip stick hole. I rigged a piece of hose to it and routed it to a catchment bottle in the engine bay. after every journey I would pour the contents of the bottle back into the engine. I used to refer to it as a “semi-dry sump” engine.