ok so i just put a b16 in my teg went to start it up and it started up fine. turned it off it would start back. but if i push start the car it starts up fine and drives fine without any problems just perfect. so i tought mayb the starter was messed up so i change it out. i get the same problem. when i turn the key i hear the starter spinning sometimes i even hear it grinding on the flywheel. so now im thinking either my flywheel is messed up or i installed both starters wrong which i doubt. is it possible to instal the starter to the teeth on the starter are hitting the teeth on the flywheel instead of the groves?

 

check ur grounds!!