The drivebelts or Vbelts or the fan belts are located in the front of the engine and plays a significant role in the functioning of the vehicle as well as its part. The nature of these belts and the material used makes them prone to failure with passing time and they need a regular check-up and tightening to prevent serious engine damage. Belts are different depending on the installed accessories because they drive such components as the alternator, power steering pump, water pump, and air conditioning compressor, whereby one belt may be powering more than one component depending on the pulley system provided. In order to examine the belts, when the engine is off, open the hood and examine the belts by feeling along the belt and make sure to inspect the opposite side by twisting the other belt. The tension in the belt is determined by pushing with thumb to determine the extent to which the belt deflects and a typical deflection is 1/4 inch when the distance between pulleys is 7 to 11 inches and 1/2 inch when the distance is 12 to 16 inches. When it is necessary to adjust, the tension is adjustable by sliding the belt-driven accessory on its bracket, and this requires rape of an adjusting bolt and a pivot bolt on each part. The component can be relaxed then brought to adjust the tension of the belt after which the bolts must be fixed once the right tension is attained. Leverage might be needed in this process, but it must not be used in a way that will damage any parts. To replace the belt, the same adjustment procedure is undertaken, however the belt has to be totally removed off the pulleys. Where two or more belts are involved, replacement of all the belts is recommended at once and each belt and the pulley groove should be marked for correct installation. The purchase of the new belts should be accompanied by the old ones so that the right comparisons can be made concerning the length, width, and design.