When you say test drive is it safe to say that the car has not been driven very far? If that is the case, I would check pulley alignment. If the belt is off center a little bit, it will but an amazing amount of stress on that bearing. It won't make a difference whose pump you use.
Brian Hobaugh SCCA National Tour June 2014
First Hemi 'Cuda Convertible Ever Built
Short clips: Goodguys Pleasanton autocross and pit videos
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