Drive Belt: Service and Repair

DRIVE BELTS TENSION ADJUSTMENT





1. Check that the belts are not damaged and are properly fit into the pulley grooves.

CAUTION:
1) When installing the V-ribbed belt, check that the V ribs are properly in alignment.
2) If noise or slippage is detected, check the belt for wear, damage, or breakage on the pulley contact surface, and check the pulley for scoring. Also check for the proper belt deflection measurement.





2. Apply 100N (22 lbs.) force to the belt back midway between the pulleys as shown in the illustration, measure the amount of deflection with a tension gauge.

Type A tension gauge





Do not let the dial section of the tension gauge contact other objects during measurement.

Type B tension gauge





1. When measuring, be sure to turn the reset button in the arrow direction to set the gauge needle to the RESET position.
2. If the tension gauge is removed from the belt, the needle will still indicate the tension. Read the tension after removing the gauge.

Alternator and Power Steering Pump Belt Adjustment





1. To increase belt tension, loosen the tension pulley locking nut slightly. Turn the left-hand threaded adjusting bolt clockwise, and move the tension pulley slightly.





2. Tighten the locking nut.

Tightening torque:
Generator tension pulley nut: 39 - 60 Nm (390 - 600 kgs.cm, 28 - 43 ft. lbs.)

NOTE: Put the adjusting bolt into the recess at the far depth of the elongated hole on the tension bracket.

Check for the proper amount of belt deflection. Readjust if necessary.

NOTE: Before re-checking, crank the engine one or more revolutions.

Air Conditioning Compressor Belt Adjustment





1. Loosen tension pulley fixing bolt A.
2. Adjust the belt deflection with adjusting bolt B.
3. Tighten locking bolt A.
4. Re-check the belt deflection and readjust, if necessary.

NOTE: Before re-checking, crank the engine one or more revolutions.