Degree of wear of drive belts
1. Permissible wear
2. Transverse cracks on the belt ribs
3. Unacceptable wear
4. There are no adjacent sections of belt ribs longer than 1 cm
5. Cracks parallel to the belt ribs
Examination
1. Inspect the drive belt along its entire length on both sides for cracks or signs of wear.
2. Check the drive belt tension by pressing on the belt midway between the two pulleys and measuring the belt deflection (1) using a ruler (4). Make sure the ruler is perpendicular (2) to the rack (3).
Tension adjustment
1. To adjust the power steering pump and air conditioning compressor drive belt tension on four-cylinder models, loosen the pump pinch bolt and lock bolt, then tighten the adjusting bolt to loosen or tighten the belt tension.
2. On four-cylinder models, to adjust the tension of the water pump and alternator drive belt, loosen the alternator mounting bolts and tighten the adjusting nut.
3. On six-cylinder models, to adjust the tension of the power steering pump and air conditioning compressor drive belt, loosen the upper tensioner nut and tighten the adjusting bolt (indicated by the arrow).
4. On models with a six-cylinder engine, to adjust the tension of the water pump and alternator drive belt, loosen the lower nut (1) of the tensioner and tighten the adjusting bolt (2).
Replacement
1. Loosen the drive belt tension and remove it from the pulleys.
2. If one belt requires replacement, it is recommended to replace the other belts as well. The belt installation diagram is usually shown on a plate located in the engine compartment or on the hood.
3. Installation of a new belt is carried out in the reverse order of removal.