FixVault

Inspect Drive Belt

  1. Visually check the belt for excessive wear, frayed cords etc.

    If any defect has been found, replace the drive belt.

    NOTE: Cracks on the rib side of a belt are considered acceptable. If the belt has chunks missing from the ribs, it should be replaced.
    Fig 1: Inspecting Drive Belt
    G06828677Courtesy of KIA MOTORS AMERICA, INC.
  2. Measure the drive belt tension and adjust it.

    Apply a force of 98N (10kg, 22lb), and measure the deflection between the generator and the water pump pulley.

    DEFLECTION 

    DEFLECTION SPECIFICATION CHART

    New belt 3.3 ~ 3.7mm (0.1299 ~ 0.1457in.)
    Used belt 4.2 ~ 4.7mm (0.1654 ~ 0.1850in.)

    If the belt tension is not as specified, adjust it.

    Fig 2: Measuring Deflection Between Generator And Water Pump Pulley
    G06828678Courtesy of KIA MOTORS AMERICA, INC.
    NOTE:
    • "New belt" refers to a belt which has been used less than 5 minutes on a running engine.
    • "Used belt" refers to a belt which has been used on a running engine for 5 minutes or more.
    • After installing a belt, check that it fits properly in the ribbed grooves.
    • Check with your hand to confirm that the belt has not slipped out of the groove on the bottom of the pulley.
    • After installing a new belt, run the engine for about 5 minutes and recheck the belt tension.