Gentlemen,
"This is not a joke"
Picture the scene you are at a rally with your 1918 Lister M and you find a pulley for it to run a pump but oh dear the hole in the pulley is just a tad to small, what do you do! I know a gentleman who recently ground down the crankshaft, whilst at the rally, with a angle grinder to make the pulley fit. Anybody want to by a scrap engine :-((
Martin P