I have a drive-belt tensioner, on a K7M 1.6 8v, which was initially not moving to allow me to re-place the serpentine-/drive-belt.
I managed to get it moving, but it's still a little stiff.
Can apply some lubricant to free it up a bit more, before I refit the drive belt?
If so, what would be a suitable type of lubricant, and where precisely should I be applying it?