Aux belt tensioner

[weka]

I know of another person who had a noisy AC model XUD9TE auto tensioner in a Peugeot 406, but can only say that my 306 even though only at 55,000K, was making a plastic cover rumble noise, almost like an induction noise, just above idle rpm, quite noticeable as you drive off, then as the revs climb it goes away. Much different to a bearing noise.
As I said before, I had to tighten the manual adjuster a bit more till it stopped, but the hinge mechanism of these adjusters is a bit suspect, I guess a new one will give no trouble for quite a while.
Ron