How To Measure A Belt For A Car. You will notice that all v belts also sometimes referred to as wedge shaped belts are measured across the top think section and the depth of the belt. Measure the width of the belt.
Examples of how belt numbers are coded per section: Take the belt off the car, make a mark that you can easily see on the belt, and take a tape measure and measure the length in centimeters, then count the number of ribs the belt has. Measure the diameters of the small pulley, denoted by d1, and the large pulley, d2.
Internal length v belt width:
The rest of the belt is not considered for measurement purposes. Draw a mark on the flat surface with a pencil to designate the starting point of the measurement. How we measure and think about *new* belts :. A section= add 2 to belt number (example a88 = 90 outside circumference) b section= add 3 to belt number (example b88 = 91 outside circumference) c section= add 4 to belt number (example c88 = 92 outside circumference)