Spot that sound! Please :-)

[MikeAngove]

Hi guys,

My '98 Astra 1.6 8v has developed a loud whining sound when idling, and i'm not sure where its coming from! Can anyone help identify, or point me in the right direction please?

I have put a sound clip and photo of where it seems to be coming from here:

www.mikeangove.com/noise.wav
http://www.mikeangove.com/engine.jpg

It seems like the bog black box bit. The whining gets higher pitched as i rev, and then drowned out by the engine.

If anyone can advise that would be great, else i guess it's off to the garage.

Thanks
MikeA

[Benn]

have you tryed taking the belt off the alt and seeeing if the noise is still there?
and funk dont have the speakers turned up loud when listening...

[hamster]

My water pump made a whining noise when it gave up. The bearings inside it were shot.

[Astraghoul]

deffo sounds like a bearing either going or gone, would try benns suggestion first as is easiest option and tbh sounds most probable too.

[astra-cad-astra]

same here with my water pump

[cava]

sounds like alternator whine bud best way to elimnte it is do wot the other guy's say take the alternator belt off and see if the noise goe's away whenya got the belt off give the pully's a whirlw ith ya hand see if you here anything from them

[MikeAngove]

Cheers guys, will have a gander at the alternator tomorrow.

Thanks
MikeA

[DarrenH]

altenator, water pump, cam belt idler/tensioner. need diagnosing soon as a couple of those are engine threatening.