Hi,

I have recently changed the PAS belt on my T4 1.9TD because it was slipping badly. I left all of the shims outside of the 2-part pulley, and the tension was fine. I then acquired a service manual and thought I should put some shims back in, but it was far too loose with any in. It's now about 6 weeks since I replaced the belt and its starting to slip again. Have I missed something? I can't tension it any more, and can't see why it should slip again so soon.

Thanks