OK, what you've got is a locked-up engine for whatever reason, and the turning torque of the starter has the drive gear jammed into the flywheel. Yoy'll need to loosen the bolts that hold the starter to the bellhousing and shake it a little. The spring on the drive unit will snap it back into place once the tension on the gear is gone. Don't push the starter again until you get the engine free to make full turns by using penetrating oil and a pry bar on the flywheel.
Jerry
Last edited by Hotrod Lincoln; 05/21/2011 12:12 AM.