Hi,
Just thought I would show progress of my rebuild of an early 70s model Scotty.
When I bought it, the clutch would not work and when I tried to adjust it, it just slid along the shaft. I pulled it apart and the cotter pin looks cactus along with the woodruff key. The engine shaft looks a little damaged at the tip, I will let the experts decide though.
Here are a few pics.
Cheers