CHARGING SYSTEM Noise Occurs from V-ribbed Belt or Generator Assembly

INSPECTION PROCEDURE

PROCEDURE


  1. CONFIRM PROBLEM SYMPTOM


    1. Confirm the problem symptom.

      Result
      Symptom Proceed to
      Noise occurs from fan and generator V belt A
      Noise occurs from generator assembly B

    B

    CHECK FOR NOISE WHEN ROTOR IS TURNING FREELY Click here

    A

  2. CHECK FAN AND GENERATOR V BELT FOR WEAR


    1. Check the fan and generator V belt for wear or damage.

      OK
      The fan and generator V belt is not worn or damaged.

    NG

    REPLACE OR ADJUST FAN AND GENERATOR V BELT

    OK

  3. CHECK GENERATOR WITH CLUTCH PULLEY FOR WEAR


    1. Check the generator with clutch pulley grooves for wear or damage.

      OK
      The generator with clutch pulley grooves are not worn or damaged.

    NG

    REPLACE GENERATOR WITH CLUTCH PULLEY Click here

    OK

  4. CHECK FOR NOISE WHILE CLUTCH PULLEY IS OPERATING


    1. Start the engine and check the generator with clutch pulley for looseness.

      OK
      The generator with clutch pulley is not loose.

    NG

    TIGHTEN GENERATOR WITH CLUTCH PULLEY TO SPECIFIED TORQUE

    OK

  5. INSPECT GENERATOR WITH CLUTCH PULLEY (UNIT INSPECTION)


    1. Remove the generator assembly Click here.

    2. Check the installation condition of the generator pulley cap.

      OK
      The generator pulley cap is not loose or missing.

    3. Check for grease leaks (for wet pulley) or particle formation due to friction (for dry pulley).

      OK
      No grease leaks (for wet pulley) or large build-up of particles (for dry pulley).

    4. Check the generator with clutch pulley for misalignment (interference with the generator assembly).

      OK
      The generator with clutch pulley is correctly aligned (no interference with the generator assembly).
    5. A01FEN1

      Turn the generator with clutch pulley clockwise and counterclockwise by hand and check for noise.

      OK
      Noise does not occur when turned in both directions.

    6. Turn the generator with clutch pulley clockwise and counterclockwise by hand and visually check for runout.

      OK
      The generator with clutch pulley does not have runout.
    7. A01FHW0

      Using a screwdriver, hold the fan of the generator rotor assembly located inside the generator assembly in place and check that the generator with clutch pulley locks when turned clockwise and turns freely when turned counterclockwise.

      OK
      The generator with clutch pulley locks when turned clockwise and turns freely when turned counterclockwise.

    NG

    REPLACE GENERATOR WITH CLUTCH PULLEY Click here

    OK

    INSPECT PULLEY OTHER THAN GENERATOR ASSEMBLY PULLEY

  6. CHECK FOR NOISE WHEN ROTOR IS TURNING FREELY


    1. Perform a road test and check that noise does not occur when decelerating.

      OK
      Noise does not occur.

    2. Turn the engine off and check that no noise is produced by the generator with clutch pulley as the engine stops.

      OK
      Noise does not occur.

    NG

    REPLACE GENERATOR WITH CLUTCH PULLEY Click here

    OK

  7. CHECK ENGAGEMENT OF GENERATOR WITH CLUTCH PULLEY


    1. Remove the generator assembly Click here.

    2. A01FHW0

      Using a screwdriver, hold the fan in the generator rotor assembly located inside the generator assembly in place and check that the generator with clutch pulley locks when turned clockwise (locking direction).

      OK
      The generator with clutch pulley locks.

    NG

    REPLACE GENERATOR WITH CLUTCH PULLEY Click here

    OK

    REPAIR OR REPLACE GENERATOR ASSEMBLY Click here