The Fanbelt on my PD130 Vrs squeaks for a short while when the car has been stood over night ....

I recently fitted a new one & it was squeak free for approx 400 Miles, So as a tester i fitted another new one & the same happend again ..... After a few minutes the squeak dissapears for the rest of the day ...

The Belts fitted are the Gates brand & when new they appear to have a kind of velvet coating on the Groove's, Im assuming this wears eventually & that is when the morning noise starts... Bizarre..

Anyone else have this ?? I may purchase a Gen VW belt to see if that cures it ...

Tensioner & all other pulleys appear to be fine ....

Cheers.

Dean

Edited 2 March, 201016 yr by dfullb

Fanbelt = cambelt to me, so do you mean the cambelt or the aux belt?

Fanbelt = cambelt to me, so do you mean the cambelt or the aux belt?

Fanbelt is the Old School of Auxillary belt, From the Days when Cars had Mechanical Cooling Fans (Belt Driven not electric) & the Like

Cambelt is well ... a Cambelt ...

So, Yes.. My auxillary belt is the culprit

Cheers.

Dean

Edited 2 March, 201016 yr by dfullb

Gates belts are original equipment fit for some manufacturers, so I doubt that the belt is at fault. As the problem manifests itself after the first start of the day, I would say that the noise is caused by the extra load on the alternator (possibly coupled with a belt tensioner that has lost some of its spring). The extra load on the alternator could be due to the battery getting discharged over night, the battery may just be old and hasn't got the capacity anymore or the power steering may think that it requires more current than it actually needs.

If it's not your belt then more likely to be the tensioner.

Gates belts are original equipment fit for some manufacturers, so I doubt that the belt is at fault. As the problem manifests itself after the first start of the day, I would say that the noise is caused by the extra load on the alternator (possibly coupled with a belt tensioner that has lost some of its spring). The extra load on the alternator could be due to the battery getting discharged over night, the battery may just be old and hasn't got the capacity anymore or the power steering may think that it requires more current than it actually needs.

Thing is if you spit on the belt it will disapear straight away & or change, Definately don't think it is loadings as it is not a squeal & as stated a brand new belt makes it disappear totally for a period of time, If this was battery related & Aux belt tensioner Etc it would do it almost straight away after fitting a belt, especially with theses Sub Zero nights ....

Cheers.

Dean

Edited 2 March, 201016 yr by dfullb

To isolate the squeal, find a WD40 can or similar dewatering fluid with a tube which helps you direct the spray onto each pulley centre in turn, allowing a minute or so for the WD40 to burn off. When it goes quiet you have found the right pulley. If you can't isolate an offending pulley then spray the belt itself, if it goes quiet then theres your problem. If it is the belt it will be because of the cold ambient temperature. Changing the belt again may or may not cure the noise. It will definitely go quieter when the weather gets warmer. Of course, if its not tight enough the belt will slip and develop a glaze on the inside surface and will always squeal.

Cheers All.

I definately think it is to do with the Belt & Compounds Etc . When it has done a few miles

Thanks.

Dean