Drive Belt: Adjustments

DRIVE BELTS


Tension Adjustment







CAUTION:
- When belt is replaced with new one, adjust belt tension to the value for "New belt", because new belt will not fully seat in the pulley groove.
- When tension of the belt being used exceeds "Limit", adjust it to the value for "After adjusted".
- When installing a belt, make sure it is correctly engaged with the pulley groove.
- Never allow oil or engine coolant to get on the belt.
- Never twist or bend the belt strongly.





1. Loosen the idler pulley lock nut (A) from the tightening position with the specified torque by 45 degrees.





CAUTION:
- When the lock nut is loosened excessively, the idler pulley tilts and the correct tension adjustment cannot be performed. Never loosen it excessively (more than 45 degrees).
- Put a matching mark on the lock nut, and check turning angle with a protractor. Never visually check the tightening angle.
2. Adjust the belt tension by turning the adjusting bolt.

CAUTION:
- When checking immediately after installation, first adjust it to the specified value. Then, after turning crankshaft two turns or more, re-adjust to the specified value to avoid variation in deflection between pulleys.
- When the tension adjustment is performed, the lock nut should be in the condition at step"2". If the tension adjustment is performed when the lock nut is loosened more than the standard, the idler pulley tilts and the correct tension adjustment cannot be performed.
3. Tighten the idler pulley lock nut.

Idler pulley lock nut : 34.8 N.m (3.5 kg-m, 26 ft-lb)