the ball bearing that the guy says is at the distributer end but when you start the car how long does it take for the oil pressure light to go out and does it rattle on start up eg tappety noise for a few seconds .
the next question is what spec oil are u using hope fully you are using either 5w 40 oil or 10w 40 as any other oils are to thick for the cvh engine especially the turbo engine try these if havent already