Document G6oKvGkNeXXwBp6XJx8j68mOr

23 CHAPTER 2/COOLING SYSTEM (Figure 40) (Figure 38) Examine the entire drive. Belt drive pulley arrangement and accessory placement vary according to car model and year of manufac ture. Most basic drive arrangements follow the pattern shown in the guide. In most cases, in stallation is simply a matter of adjusting the ten sioning of the idler. Most vehicles using V-Ribbed belts have a diagram under the hood that illus trates the proper belt routing for the serpentine drive. Reduce the tension of the drive belt by push ing the accessory toward the engine block. Do not force it; if the accessory sticks, loosen its pivot and adjusting bolts again and continue to push it gently toward the engine. Loosen the accessory. Most belt-driven acces sories are attached to mounting brackets with mounting, pivot and adjustment bolts. Usually, only the pivot bolt and adjustment bolt need to be loosened to move the accessory for belt replacement. (Figure 41) Remove the belt. At this point it should be loose enough to remove from the drive with your hands. Do not pry the belt from the pulley with a hand tool; it can damage the pulley. Be fore you remove a V-Ribbed belt in a serpentine drive, you may want to sketch the arrangement of the path the belt takes around the pulleys. Make sure the new belt you are putting on is the correct size. Most belt catalogs have a com plete listing of belt sizes for all makes of cars. If you don't have a catalog, use a belt number selector to measure the outside circumference of the old belt. As a last resort, pull a measuring tape around the belt and get the most accurate reading you can.