Turning the crankshaft
The crank for this engine was meant to be made in 3 pieces, but I decided to make it in one piece
first I turned the front end down to size, then I had no way to hold it in my 4 jaw chuck, the jaws couldn't close down far enough to hold it with the offset I had to have
So I then made a fixture to hold it in the 3 jaw chuck, using a piece of round aluminium I drill and reamed a hole to fit the shaft, I then cut a slot along the hole
The hole and the seat came out to be almost the same size, I pushed a small screwdriver into the slot and that allowed the shaft to slide in, taking the screwdriver out and it locked on to the shaft
This allowed me to turn the rest in the 3 jaw chuck, pressure from the chuck jaws also held the shaft solid
