Specifications

ENGINE <4G9-GDI> – On-vehicle Service

11A-7

Use a belt tension gauge to check that the belt tension is

within the standard value.

Apply 98 N of force to the middle of the drive belt between

the pulleys (at the place indicated by the arrow) and check

that the amount of deflection is within the standard value.

ALTERNATOR DRIVE BELT TENSION ADJUSTMENT

1. Loosen the nut of the alternator pivot bolt.

2. Loosen the lock bolt.

3. Use the adjusting bolt to adjust the belt tension and belt

deflection to the standard values.

Standard value:

Items When adjusted When replaced

Vibration frequency Hz 155 – 175 203 – 234

Tension N 343 – 441 588 – 784

Deflection

(Reference value) mm

10.5 – 12.0 6.7 – 8.5

4. Tighten the nut of the alternator pivot bolt.

Tightening torque: 44 Nm

5. Tighten the lock bolt.

Tightening torque: 22 Nm

6. Tighten the adjusting bolt.

Tightening torque: 5 Nm

Crankshaft pulley

Alternator pulley

Belt tension

gauge

Crankshaft pulley

Alternator pulley

98 N

Adjusting bolt

Alternator

pivot bolt

Lock bolt

Alternator

pivot nut