Whining noise from around alternator area

[aaronperry94]

Anyone ever experienced the noise in the attached video? Sounds like it comes from alternator area, however just had a brand new alternator and pulley fitted and the noise persists. 

noise only occurs when under load accelerating or revving. If driving, the noise disappears with the clutch in or coasting. 

video: https://imgur.com/a/tbGvlgu

 

Edited 6 hours ago by aaronperry94

[Stevey Y]

1 hour ago, aaronperry94 said:

Anyone ever experienced the noise in the attached video? Sounds like it comes from alternator area, however just had a brand new alternator and pulley fitted and the noise persists. 

noise only occurs when under load accelerating or revving. If driving, the noise disappears with the clutch in or coasting. 

video: https://imgur.com/a/tbGvlgu

 

Hi could be the belt tensioner bearing or any idler pulley bearing in the circuit, did you have the alternator drive belt changed with the alternator, chances are if the noise was there before the new parts were fitted its one of the above, if it started after fitting it might be the alternator clutch [not unknown] depending on the brand of replacement unit.

Steve.

[aaronperry94]

28 minutes ago, Stevey Y said:

Hi could be the belt tensioner bearing or any idler pulley bearing in the circuit, did you have the alternator drive belt changed with the alternator, chances are if the noise was there before the new parts were fitted its one of the above, if it started after fitting it might be the alternator clutch [not unknown] depending on the brand of replacement unit.

Steve.

Thanks Steve. It was a new Bosch alternator fitted with pulley etc but I don’t think the drive belt was changed. The same noise was there before and after the new alternator was fitted. 
Based on what you’ve said, it could be the belt tensioner bearing or something then.