Actually, the damage is done when you reconnect the battery ~ I don't recommend it but if you disconnect the ground cable and tuck it down behind the battery where it cannot connect and the engine still runs, the alt/ge is good , go SHUT THE ENGINE OFF before re connecting the ground cable .

This was part of my GM factory training long, long ago .

They taught us lots of things you're not supposed to do because if you don't do them *exactly right* you'll damage things .

__________________
-Nate
1982 240D 408,XXX miles
Ignorance is the mother of suspicion and fear is the father

I did then what I knew how to do ~ now that I know better I do better