407 hdi whine noise

[jsp]

so I have here a 407 sw hdi with whine noise.

Could it be the alternator clutch pulley?

Is there any option to get rid of this clutch pulley and convert it to normal pulley?

[white exec]

A "listening stick" carefully applied to the alternator body (or elsewhere) should help pinpoint the source of the noise.

[jsp]

Many thanks I am sure it's the alternator pulley since I have changed to rest already.

Is there a conversion pulley?