I removed my 2002 SX stern drive unit to replace the driveshaft and exhaust bellows. When I installed the drive all seemed to go well until I tried to start the engine. Drive was installed with gear in forward position, put into neutral before starting. When I turn the key all I hear is grinding. The engine will not turn over and it sounds like the issue is in the stern drive (based on where the noise is coming from (had a girl in a bikini try to start as I sat by the stern drive). Called the shop they said to trim down and try again, still no luck. They mentioned it might be the bearing in the gimbal housing. So I pulled the drive again and the bearing looked nice spun with no resistance. The driveshaft and U-joint assembly looks good and spins the prop freely. I even pulled the starter to look for any issues, none. Help, I in Tucson its 108 degrees and Im not at the lake with the girl in the bikini.