24. SERVICE PROCEDURE 24.6.6 TEST AND ADJUST TENSION OF WATER PUMP BELT Checking The deflection when pressed with a finger force of approx. 6 kg at a point midway between the water pump pulley and the fan pulley should be approx. 6 mm (0.24 in). Tensile force when using tension gauge: 60 – 65 kg (132.3 – 143.3 lb) Adjusting 1. Loosen locknut 1 and bolts 2 and 3 , then adjust the belt tension with adjustment bolt 4 . 2. After adjusting, tighten bolts 2 and 3 , turn adjustment bolt 4 back 1/2 turns, then tighten locknut 1 . Tightening torque Locknut 1 : 30.90 ± 3.43 N·m (3.15 ± 0.35 kgf·m, 22.8 ± 2.5 lbft) Bolt 2 , 3 : 66.20 ± 7.35 N·m (6.75 ± 0.75 kgf·m, 48.8 ± 5.4 lbft) AM091660 3.
Check for damage to the pulleys, and wear of the V-groove and V-belt. Be particularly careful to check that the V-belt is not in contact with the bottom of the V-groove. 4. If the belt has stretched and there is no allowance for adjust- ment, or if it is cut or cracked, replace the belt. 5. After replacing the V-belt, operate for one hour, then adjust again. 3-55