funny whinning noise

[oakgreengolf]

Ive got a mk2 16v golf 175k on the clock. I decided to change the cambelt, alternator belt and the waterpump. I also flushed the rad. Since putting it back together its making a whinning noise from the alternater, water pump, power steering area. I got the water pump from gscp's. The belts seem to be tight enough and are not rubbing on the covers. Has anyone got any ideas what would be causing the noise as its rather anoying. i gets louder as you rev the engine. any help greatly appreciated

[DarnPB]

The whining noise could be a belt tensioned too tightly, or, if tensioned correctly, you have found a pulley bearing that is worn that you did not know about before. If it was the water pump bearing gone, then it is likely that the pump would leak water.
Re-check your tensions first. The cam belt tension should be so that you can twist the belt through 90 degrees with moderate force with your finger and thumb, in the middle of the pullies that are furthest apart from each other.

[Ben Lessani]

Sounds like a belt is too tight. Sometimes you can notice by the engine running a little bit funny (poor performance) if is the timing belt. If its a purring whine - then its overtensioned belt, if its a sqeakey whine then I would guess a pulley has been incorrectly fitted - you've not put the tensioner on backwards have you?

Ben

[oakgreengolf]

tensioner is definatly the right way round, ill recheck the powersteering and alternator belts, I may have over done them a bit. How tight should they be?.

[DarnPB]

tensioner is definatly the right way round, ill recheck the powersteering and alternator belts, I may have over done them a bit. How tight should they be?.

Difficult to answer. Make them so that you get about 5-10mm deflection when firmly moved with finger and thumb.

[Organisys]

whining noise is usualy narrowed down to girlfriend in passenger seat.

 

[mattneck(Beavis)]

whining noise is usualy narrowed down to girlfriend in passenger seat.

 

10/10 

[oakgreengolf]

Could be the girlfriend, although still makes the noise without her in it LOL. loosened the belts, doesnt seem as bad now though is still there a little bit.

[Organisys]

My money is on the water pump bearing.

[8vRicey]

My money is on the water pump bearing.

Changed my pump yesterday, no more whining !!