Drive Belt: Service and Repair
INSPECTIONCheck the following items and replace if any case in items.
1. Check the belt surface for damage, peeling or cracks.
2. Check the belt surface for oil or grease.
3. Check the belt for worn or hardened areas.
4. Check the surface of the pulley for cracks or damage.
DRIVE BELT AND PULLEY
Disassembly
1. Loosen the coolant pump pulley bolts.
2. Loosen the generator support nut.
3. Looses the generator lock bolt, and remove the belt.
4. Remove the coolant pump pulley bolts.
Tightening torque:
Generator support nut A: 20 - 25 Nm (200 - 250kg.cm, 14 - 18 ft. lbs.)
Generator lock bolt B: 15 - 22 Nm (150 - 220kg.cm, 11 - 16 ft. lbs.)
Generator brace mounting bolt: 20 - 24 Nm (200 - 240kg.cm, 14 - 17 ft. lbs.)
Reassembly
1. Install the coolant pump pulley to the coolant pump pulley bracket and tighten the bolts firmly.
2. After installing the belt, adjust the belt tension.
DRIVE BELTS TENSION ADJUSTMENT
1. Check that the belts are not damaged and fit properly into the pulley grooves.
CAUTION:
1) When installing the V-ribbed belt, check that the V-ribs are properly aligned.
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 100 N (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.
Standard value:
NOTE:
1) The belt tension must be measured between the specified pulleys.
2) When a new belt is installed, adjust the tension to the center of the standard range indicated under "New." Let the engine idle for 5 minutes or more, and check the standard value indicated under "Inspection."
3) When adjusting a used belt or a newly installed belt after 5 minutes or more of operation, refer to the standard value indicated under "Used."
4) Refer to the standard value indicated under "Inspection" for periodic inspections.
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, turn the reset button in the direction of the arrow to set the gauge needle to the RESET position.
2. When the tension gauge is removed from the belt, the needle will still indicate the tension. Read the tension after removing the gauge.
Alternator Belt Adjustment
CAUTION: If the belt is too loose, there will cause noise or premature wear. If the belt is too tight, the water pump bearing or the alternator will get damaged.
1. Loosen the alternator support-nut "A" and the tension adjuster lock bolt "B"
2. Using the tension adjuster bolt, adjust the belt tension to specification.
3. Tighten the adjuster lock bolt "B".
4. Tighten the alternator support nut "A".
5. Check the tension or the deflection of belt, readjust if necessary.
Tightening torque:
Alternator support nut A: 20 - 25 Nm (200 - 250 kg.cm, 14 - 18 ft. lbs.)
Adjuster bolt B: 12 - 15 Nm (120 - 150 kg.cm, 9 - 11 ft. lbs.)
Belt length: 875 ± 5 mm (34.4 ± 0.2 inch)
Power Steering Oil Pump Belt Adjustment
1. Loosen the adjustment bolt of the Power steering oil pump.
2. Adjustment the deflection or the tension of the power steering pump to specification.
3. Tighten the adjustment bolt.
4. Crank the engine one or more revolutions.
5. Check the belt deflection, readjust if necessary.
Air Condition Compressor Belt Adjustment
1. Loosen the tension pulley adjustment bolt A.
2. Adjust the belt deflection with adjustment bolt B.
3. Tighten the fixing bolt A.
4. Re-check the belt deflection and re-adjust, if necessary.
NOTE: Before re-checking, crank the engine one or more revolutions.