I've been having an issue with a pulley alignment problem, where my belt, albeit extremely tight, walks forward on the tensioner and the water pump pulleys. ( The only pulleys without a lip. ) Thus far, it appears the smog pump pulley is pushed forward about 1/8" further than the crank pulley, and is currently the only issue I can see. You can see in the photo, that the belt is walking forward on the water pump and the tensioner pulley. To the direct right of the water pump pulley, is the A/C pulley that "appears" to be aligned correctly.