Matt Kirsch wrote:Wouldn't slipping belts produce smoke and smell after a little while, though?
Almost never. If its slipping, horsepower is lost between the drive and driven pulley, its still turning but not at full efficiency. The belt will glaze up creating a protective coating preventing the belt material from melting.
If the driven pulley is completely locked up and the drive pulley has enough power to remain in motion, at that point you will observe smoke and usually some noise to go along with it.