hi Gordon,
the only thing the old man told me he had done on my 126 was a new clutch, new shock absorbers, and loads of oil changes!!
he used to poor the old engine oil down into the panels and underneath teh car.
The other thing he taught me was to use Vasoline its just like waxoyl when it dries it dries hard over time, probs not good to get it on rubber though, i smear it over everything.
Chris