Buick 9433728 V Belt Laminated

The drive belts, often called V-belts, are located on the timing chain end of the engine. Due to their composition and the high stresses they are subjected to, drive belts stretch and deteriorate as they age, necessitating periodic inspections. The number of belts used on a vehicle depends on the installed accessories, as they transmit power from the crankshaft to components such as the alternator, water pump, and air conditioning compressor. Depending on the pulley arrangement, a single belt may drive more than one component, while two belts may drive the same component on other models. Using your fingers, and a flashlight if necessary, move along the belts checking for fraying, cracks, and separation of the belt plies. Also, look for glazing, which gives the belt a shiny appearance. Both sides of each belt should be inspected, and each belt should be twisted to check its underside.