Re: Replacing the serpentine belt on 01' CV
In this case you turn it clockwise to relieve the tension on the belt. When it's turned enough, the belt comes right off. Then the wrench is released slowly counter clockwise to let the tensioner relax. Then after the new belt is routed according to your diagram, you turn the tensioner clockwise as far as you can to install the belt in the last pulley, then release the tension slowly. When that's done, you check all the pulleys to make sure the belt is in all the proper grooves. Start it and make sure it runs around properly.