Was testing my fuel tank tubing (will it reach the engine, etc.) and the drive hub and woodruff key slipped loose. Now I am at a loss as to how to reinstall the drive hub and woodruff key. Based on the shape of the woodruff key and the slot in the drive shaft, there seems to be only one way to install the key. However, I cannot figure out how to get the drive hub back on?!?
Since it slipped off so easy I am truly baffled why it should be so hard to reinstall?

They can be a pain in the butt to get back into place, but all it takes is patience. There's no "trick" to it, but I've found that using a small screwdriver to hole the back end of the key in position while starting the hub is essential, other wise the key tends to "rock" out of the keyway.

Good luck,
Dennis-