DRIVE BELT ON-VEHICLE INSPECTION

CAUTION / NOTICE / HINT

CAUTION:

To prevent injury due to contact with an operating fan and generator V belt or cooling fan, keep your hands and clothing away from the fan and generator V belt and cooling fans when working in the engine compartment with the engine running.

B00697X

PROCEDURE


  1. INSPECT FAN AND GENERATOR V BELT


    1. B0025KT

      Check the belt for wear, cracks or other signs of damage.

      If any of the following defects is found, replace the fan and generator V belt.


      • The fan and generator V belt is cracked.

      • The fan and generator V belt is worn out to the extent that the cords are exposed.

      • The fan and generator V belt has chunks missing from the ribs.

    2. B0025OBC05
      *a CORRECT
      *b INCORRECT

      Check that the fan and generator V belt fits properly in the ribbed grooves.

      Tech Tips

      Check with your hand to confirm that the fan and generator V belt has not slipped out of the grooves on the bottom of the pulley. If it has slipped out, replace the fan and generator V belt. Install a new fan and generator V belt correctly.

  2. INSPECT VISCOUS HEATER V BELT (w/ Viscous Heater)


    1. B0025KT

      Check the viscous heater V belt for wear, cracks or other signs of damage.

      If any of the following defects is found, replace the viscous heater V belt.


      • The viscous heater V belt is cracked.

      • The viscous heater V belt is worn out to the extent that the cords are exposed.

      • The viscous heater V belt has chunks missing from the ribs.

    2. B0025OBC05
      *a CORRECT
      *b INCORRECT

      Check that the viscous heater V belt fits properly in the ribbed grooves.

      Tech Tips

      Check with your hand to confirm that the viscous heater V belt has not slipped out of the grooves on the bottom of the pulley. If it has slipped out, replace the viscous heater V belt. Install a new viscous heater V belt correctly.

    3. Inspect the viscous heater V belt tension or deflection value.

      Note


      • Check and adjust the viscous heater V belt when engine is cold.

      • Check the viscous heater V belt tension at the specified point.

      • Perform the V belt tension and deflection value check after idling the engine for a few minutes. After this, rotate the crankshaft pulley 2 times and adjust to the middle of the range of values given for "New belt".

      • With the exception of new belts, when reinstalling a belt used for 5 minutes or more, adjust to the middle of the range of values given for "Used belt".


      1. A01W80K

        Using a belt tension gauge, check the viscous heater V belt tension.

        Standard Tension
        Item Condition Specified Condition
        New belt Crankshaft pulley after 2 rotations 382 to 618 N (39 to 63 kgf, 85.9 to 138.9 lbf)
        Used belt Crankshaft pulley after 2 rotations 282 to 478 N (29 to 49 kgf, 63.4 to 107.5 lbf)

        If the belt tension is not specified, adjust the viscous heater V belt.

      2. Check the viscous heater V belt deflection by pressing on the V belt at the point indicated in the illustration with 98 N (10 kgf, 22 lbf) of force.

        Standard Drive Deflection
        Item Condition Specified Condition
        New belt Crankshaft pulley after 2 rotations 9 to 12 mm (0.354 to 0.472 in.)
        Used belt Crankshaft pulley after 2 rotations 11 to 14 mm (0.433 to 0.551 in.)

        If the belt tension is not specified, adjust the viscous heater V belt.

  3. INSPECT V-RIBBED BELT TENSIONER ASSEMBLY


    1. Remove the fan and generator V belt.

      Click here

    2. A01W8Q4

      Check that nothing gets caught in the V-ribbed belt tensioner assembly by turning it clockwise and counterclockwise.

      If a malfunction exists, replace the V-ribbed belt tensioner assembly.

    3. B0025XHC01
      *a Turn

      Turn the pulley, and check that the tensioner bearing moves smoothly and quietly.

      If necessary, replace the tensioner pulley.

    4. Install the fan and generator V belt.

      Click here