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Timing Belt: Adjustments

  1. Tension setting (While auto tensioner is not operating: And set pin being kept installed).
    1. After rotating crankshaft 1/4 revolution reversely, rotate it clockwise to position No. 1 cylinder at TDC.

      Then, loosen the center bolt and give the belt 50 kg-cm of tension with tensioner pulley socket (Two pins are attached) and torque wrench. While maintaining this state, tighten the center bolt to the standard torque.

      Center bolt standard torque:

      43-55 N.m (430-550 kg. cm, 31.72-40.57 lb. ft)

      Fig 1: Rotating Crankshaft
      G00320701Courtesy of KIA MOTORS AMERICA, INC.
    2. Pull out the auto tensioner fixing pin.
      Fig 2: Pulling Out Auto Tensioner Fixing Pin
      G00320702Courtesy of KIA MOTORS AMERICA, INC.
  2. How to check tension (While auto tensioner is operating: and fixing pin being uninstalled.)
    1. After rotating crankshaft 2 revolutions clockwise to position No. 1 cylinder at TDC, wait for about 5 minutes, and measure the amount of protruding of the auto tensioner rod.
      CAUTION: This is "leak down" time for the auto tensioner rod to protrude 1 mm when tension caused by rotation of the crankshaft has changed.
    2. Check if the amount of rod protruding is in the range of 3.8-4.5 mm.
      Fig 3: Measuring Length Of Rod Protruding
      G00320703Courtesy of KIA MOTORS AMERICA, INC.
    3. Recheck if each sprocket is within the specified range.
      NOTE: If it is not within the specified range, repeat from procedure 6 as service procedure of timing belt and auto tensioner installation method.
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