On Tue, 12 Oct 2004 13:58:36 GMT, "Leon"
wrote:

If they are narrow "V's" running the length of the belt is sounds like what
GM calls the serpentine belt.

Serpentine belts are polygroove, but not all polygrooves are
serpentine.

A serpentine belt can have a flat pulley running on the back of it,
and can use this to deliver power (rather than just being a
tensioner).

If you use a non-serpentine belt as one, there's a risk of rapid wear
on the back and exposing the tensile cords. These don't like surface
wear at all, then your belt breaks.

--
Smert' spamionam