Originally Posted by
msafi65
I measure across the driven pulley with a protractor. Or cut a cardboard template that fits into the pulley and trace on paper so angles can be measured. 30 degree systems measure right at 15 degrees off square on both sides. My old drill press has a 22 degree variable speed set in it. Most clutch sets I've measured for vehicles are 30. Does your 1 3/8" belt sit flush with outer edge of driven pulley?