DRIVE BELT ON-VEHICLE INSPECTION

PROCEDURE

1. INSPECT FAN AND GENERATOR V BELT

   
   

   1. 

      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. 

      Text in Illustration

      *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 V-RIBBED BELT TENSIONER ASSEMBLY

   
   

   1. Remove the fan and generator V belt. Click here

   2. 

      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. 

      Text in Illustration

      *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.

3. INSPECT VISCOUS HEATER V BELT

   
   

   1. 

      Check the 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. 

      Text in Illustration

      *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 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. 

         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.