Ok, well I have a weird annoying sound coming from the engine. Sounds like whining or a turbine or something of that nature. Anyways, I check vacuum lines and intake finding nothing. I look into other options and to find my crank pulley is a little wobbly. I believe that is what would be making that sound due to the sound following the RPMs fairly close (and a pulley is not suppose to wobble..duh).

So what would be causing this problem with the crank pulley? Would the pulley itself be warped or warn? Would something internal be wrong like the crankshaft itself? Possibly a worn main bearing?? I need some ideas and opinions.. Thanks