OEM 2007 Toyota Yaris Drive Belt

2007 Toyota Yaris Parts Questions & Experts Answers

• Q: How to service the drive belt on 2007 Toyota Yaris?

  A: The service procedure for the drive belt starts with unbolted removal of the engine under cover RH. The first step to release tension on the fan and generator V belt involves loosening bolts A and B. Afterwards remove the belt. The fan and generator V belt needs inspection to check for damage or frayed cords; the inspection allows cracks on the rib side but missing pieces require immediate belt replacement. The first step for installation is to place the fan and generator V belt temporarily onto the pulleys while making sure they fit properly inside the rib groove. To adjust the generator V belt tension you should use an adjusting bar to push the assembly toward the vehicle front where it connects to the engine mounting bracket. The installation process must forego using the adjusting bar near the generator assembly and camshaft timing oil control valve assembly to avoid any generator assembly-related damage. Use torque wrenches to tighten bolt A to 19 N m while bolt B reaches a torque of 54 N m. Check the V belt deflection at its designated point after installation or when installing a new belt because this inspection determines proper tension adjustments. Belts in service for more than five minutes should receive used belt specifications which require adjustments of intermediate tension and deflection values during reinstallation. Engine cranking should occur for 2 revolutions before checking V-ribbed belt tension and deflection; the belt tension gauge requires a master gauge verification before use. The installation process will end with the replacement of the engine under cover on the right-hand side.