Im a bad bad man. I changed the alternator all by my lonesome. Thats right. Yeeeep, thats right. Thats the first thing I have ever done under the hood on any of my cars. Not bad at all. If I can do it any one can. However I still have a question. The alternator was whining the day before my car did not start, the belt feels tight but could it possibley be the belt tensioner? It was a high power 200 amp alt. that had a smaller diameter pulley on it, would that affect anything? Sunday the alt. gets tested.