I was given this model in it's very sorry state some years ago and struggling to identify it and was being given some assistance by Alan Stepney who unfortunately passed away very suddenly and it got put away and forgotten about clearing out a cupboard this morning i came across it and thout i would try again.
It is all brass or bronze the fly wheel is 9 1/2 inches diameter i think the bore and stroke is 1 1/2 by 3 inches the eccentric straps look like they are press out as the corners are very sharp .The main shaft i replaced so i could turn the engine over the one it came with had sheared off at the flywheel the 3 eccentrics are have a key way in them i have taken the studs from the steam chest they are .122 48 tpi and if i remember the eccentric straps are 3.5 x 1 mm pitch bit off a mongrel any help would be greatly appreciated Thanks Graham