Getting your wheel off.
George, If yours is like mine and I'm about 101% sure it is, the wheel and key are just stuck to the shaft and one another. If you have access to a small wheel puller, it'll be a short job getting the wheel off. Failing that, go to a local hardware store and buy a 1/2-13 or 3/4-13 standard nut (can't remember which size and I'm not at the boat to check). Apply some WD40 or LPS spray lubricant to the shaft from front and back after removing the YS bronze nut and replace it with the one you bought. Position it such as to be flush to the shaft end or a 1/4 turn higher than it. Apply pressure toward you with your free hand to the back of the hub and tap the nut with a hammer. The nut will save the threads and the shaft from getting peened and mushroomed. My guess is that it won't take much force to get the wheel off that way. Just be sure not to slam the nut and shaft end too hard so start out tapping lightly, working your way up in force. Note the gap between the nut and the hub and observe to see that the gap is closing, an indicator that your tapping is working. After getting the wheel off the shaft, clean and/or lightly sand the faying surfaces to prevent a reoccurrence. Consider applying a bit of axle grease to the shaft before reattaching the wheel to it. Good luck, Glyn Judson, E31 hull #55, Marina del Rey, CA