Just a very minor point but....in an effort to allay FTSBCF (first time serpentine belt changer fear), the serpentine belt being discussed here, has absolutely nothing to do with the timing.
The timing in our cars is handled by the timing CHAIN. So, breakage of the serpentine belt will cause problems but will NOT cause any timing problems or valve/piston collision/bendage (technical term).
I'm not even sure that this engine IS an interference engine? Anyone?