Thanks Fasteddy, i have heard of this. I may do this if i cant find an alloy pulley cheap enough, but i think an alloy idler pulley will look a lot better. If i get a small pulley, the next belt size up the machinist said it wouldnt cost much to machine the vbelt to suit the back of a belt (square off the inner tapered edge). I just like the look of my pulley and clutch arm and when i add a matching primary drive pulley i think it will have a very mechanical look and the alloy idler pulley will help a lot. But thanks again, i always aprreciate advice.