A friend gave me an orphaned Stuart 10H a while ago, it had been started by someone else and there were so many mistakes and cock ups that it had been abandoned.
I have no idea what possesed me to to take it on, but I did and changed the original Stuart design along the way to suit my tastes. I ended up re-designing it in Solidworks and producing a set of my own drawings as there were so many deviations from the originals.
The main trunk guide had a crack at both sides, so I made a "U" bolt strap to repair it, otherwise the casting would have been scrapped.
The crankshaft was turned to all sorts of weird diameters and widths and was also bent, I managed to recover it with a bit of work.
The cylinder had end faces that were not square to its bore, and neither was the valve face, this too was salvaged and machined to suit, I also found that the tapped hole PCD's were not accurately done and there was a broken 7BA tap down one hole, So all these were modified to suit new PCD's.
The valve chest was all out of square as well, this was remachined and saved.
The Brass connecting rod had been bent and snapped in half, so I machined a new one out of steel with a better shape than the original.
The Eccentric and sheaves and connecting rod were all missing so I started from scratch with my own design.
The main bearings were of a very crude design as supplied by Stuart, so I re-designed it with split bearings to make it look a bit better.
I hate grub screws so fixed the flywheel onto the crankshaft with a proper keyway and gib key.
I finally got it all put together and it actually runs quite well. I really must get on with Agnes now with no more distractions
