- keys "17" and "19", wheel wrench
- two drills ∅ 4 mm
Place the gear shift lever in neutral position.
Remove the front camshaft drive belt cover.
Excessive belt tension will result in increased wear on the water pump bearings and tension roller.
If the belt tension is weak, the valve timing may be disrupted due to the belt jumping over the teeth of the camshaft pulley. In addition, a misalignment leads to increased belt wear.
Caution! Turn the crankshaft clockwise (in the direction of crankshaft rotation) only by the bolt that attaches the pulley to it. It is prohibited to turn the crankshaft by the camshaft pulley.
(The text is on the website vazbook.ru)
1. Turn the crankshaft with a wheel wrench using the generator drive pulley mounting bolt through the hole in the right wheel well (to make it easier to turn the shaft, you can remove the spark plugs).
2. Check the belt tension: its leading branch should turn 90° from the force of the fingers (15–20 N or 1.5–2 kgf) applied in the middle between the crankshaft and camshaft pulleys.
3. If the tension is not as specified, loosen the tension roller mounting nut.
4. To tighten the belt, turn the tension roller counterclockwise (approximately 10–15°), to loosen it – clockwise. If you do not have a special key, insert two drills into the roller holes...
5.... using a screwdriver, turn the roller in the appropriate direction and, holding the roller in this position, tighten the nut that secures it.
6. Turn the crankshaft two revolutions and check the alignment of the TDC marks (see subsection 10.1.) and belt tension. Repeat adjustment if necessary. After adjustment, install the front cover.