Tim, I don't know why the flywheel would be chewed up unless you do a lot of that starting an already started car deal. I was thinking that maybe your starter was lose causing this occasional screech. If it were lose, it would be misailigned when starting, causing it to screech and at the same time tear up the teeth on the flywheel. If your mechanic pulls the starter, he can look at the flywheel and diagnose how bad it is. If you are very lucky, the bendix gear on your starter is just gummy and it is causing the gear on teh starter not to shoot out far enough into the flywheel, then a new starter will maybe get you by. Lrt him do the starter and eyeball the flywheel.