note that your crank is standing upright,years ,years ago was told not to store a crank in this manner as it will develope a magnetic
condition causing metallic particles to adhere,you can do an experiment by taking a round piece of stock,stand at a 45 degree angle ,with one end on the floor and pointed north ,give it a sharp blow with a hammer on opposite end,the shaft will become slightly magnetic,this then, is what crank may do.
leon