Hi:
Don't worry about anything locking up. And yes, the engine should run, but you still need to replace the belt. When I said about something locking up, I thought that since you saw smoke and the belt broke, chances are that one of the belt driven accessories locked up. I want you to check for that before replacing the belt so a new belt doesn't get broken IF an accessory is locked up.
Let me know if you have other questions.
Joe
Thursday, March 28th, 2013 AT 2:13 AM