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Drive Belt Auto-tensioner Inspection

  1. Turn the ignition switch to ON (II), and make sure the A/C is off. Turn the ignition switch to LOCK (0).
  2. Check the position of the auto-tensioner indicator's pointer (A). Start the engine then check the position again with the engine idling. If the position of the indicator moves or fluctuates very much, replace the auto-tensioner (see DRIVE BELT AUTO-TENSIONER REMOVAL/INSTALLATION  ).
    Fig 1: Identifying Auto-Tensioner Indicator's Pointer
    G05952312Courtesy of AMERICAN HONDA MOTOR CO., INC.
  3. Check for abnormal noise from the tensioner pulley. If you hear abnormal noise, replace the tensioner pulley (see TENSIONER PULLEY REPLACEMENT  ).
  4. Remove the drive belt (see DRIVE BELT REMOVAL/INSTALLATION  ).
  5. Move the auto-tensioner within its limit with a wrench in the direction shown. Check that the tensioner moves smoothly, and without any abnormal noise. If the tensioner does not move smoothly or if you hear abnormal noise, replace the auto-tensioner (see DRIVE BELT AUTO-TENSIONER REMOVAL/INSTALLATION  ).
    Fig 2: Checking If Tensioner Moves Smoothly
    G05952313Courtesy of AMERICAN HONDA MOTOR CO., INC.
  6. Remove the auto-tensioner (see DRIVE BELT AUTO-TENSIONER REMOVAL/INSTALLATION  ).
  7. Clamp the auto-tensioner (A) by using two 8 mm bolts (B) and a vise (C) as shown below. Do not clamp the auto-tensioner itself.
    Fig 3: Identifying Indicator On Tensioner Base
    G05952314Courtesy of AMERICAN HONDA MOTOR CO., INC.
  8. Set the torque wrench (D) on the pulley bolt, and align it as shown below.
  9. Align the indicator (E) on the tensioner base with Max. belt position mark (F) on the tensioner arm by using the torque wrench, and measure the torque. If the torque value is out of specification, replace the auto-tensioner (see DRIVE BELT AUTO-TENSIONER REMOVAL/INSTALLATION  ).
    NOTE: If the indicator exceeds the Max. belt position mark, recheck the torque.

    Auto-tensioner Spring Torque: 

    20.6 - 25.2 N.m (2.10 - 2.25 kgf.m, 15.2 - 18.6 lbf.ft) 

  10. Install the auto-tensioner (see Drive Belt Auto-Tensioner Removal/Installation ).
  11. Install the drive belt (see Drive Belt Removal/Installation ).
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