I was able to have my alternator checked by a local mechanic. He said that the meter he was using should register 14 or better and it showed 13.65 after I started the car. When I turned on the lights, blower motor, etc. the number went down to 13.25. He told me that the parts in the alternator had worn (bare with me, I am not adept with the technical terms) over time and that it needed to be repaired. He would charge $160.00 out the door to remove, I am assuming rebuild, and button it back up. Does this diagnosis sound legitimate and how about the price?

Thanks.