I want to remove the belt on my 1999 voyager 3.3, but I don't want to break anything. I put a wrench on it and turned it as if tightening the bolt. The pulley did not move, but the bolt turned a little bit. If the pulley does not move, is this an indication that it is defective? If I have to replace the tensioner, I need to remove this bolt to get to the one that attaches the spring mechanism, right?