My 52 3100 didn't want to start this morning. I still have a 6v floor starter that's running on 12v. When I pushed the floor starter nothing happened. Volt gauge shows 12v so I know it's not a dead battery. I tried from under the hood and still got nothing when I worked the linkage. I pushed down on the button on the starter only and it spun over, went back in the cab it and started that time. Do I need to pull the starter and get it rebuilt? Or is there something else I need to look at?