Rotate your camshaft pulley counter clockwise (towards the rear of the car) Until the belt between the camshaft pulley and the Water pump is tight. Tighten your Manual adjusting nut down, and crank the car over. the reason your supposed to rotate two revolutions is to make sure that the belt is guided properly over the camshaft and crankshaft. If you have about 1/8" Gap between the belt and the edge of the pulley on the camshaft pulley your belt will be ok.