So I loaded up my boat and went to launch and the starter just spun around without engaging the flywheel. I removed the starter. If I manually, slow turn the the pinion it rises into position properly. If I put a battery on it and spin it at speed it does not rise but rotates rapidly. Do I need a new pinion for $245 or is there some other solution. How do you get the split ring off the end of the shaft? It says to use a screwdriver and pry it out. Not that easy.