Vag Tech's - Noisy jumping aux belt (golf gt tdi)

[MElliottUK]

I'm looking for some advice, my golf had a noise at low revs (tick over) coming from the aux belt tensioner I think, this gets worse if the aircon is switched on.

If you look at the belt tensioner its jumps back and forth +/- 1cm ish which seems excessive to me, is it knackered?

The car has done 130K and on its 2nd aux belt but the original tensioner.

The noise is not a squeak (ie bearing on the alternator, its more like a rattle - im unsure how much the tensioner should rattle if it was working correctly.

Thanks in advance

Matt

[Tame Technician]

Alternator free wheel pulley.

http://www.pistonheads.com/gassing/topic.asp?h=0&a...

[MElliottUK]

Thanks, looks like your bob on.

Will a small garage have this gun tool? or should i take it to VW?

Thanks for your help, much appreciated

[Tame Technician]

Ring round a few garages and ask, any VAG specialist should have one, I dont know about smaller garages.

Could do it your self.

http://www.justoffbase.co.uk/Alternator-Freewheel-...