Camshaft Drive Belt — Removal and Installation (VAZ-2108)

Before starting to replace the belt, brake the car with the parking brake and engage the fourth gear. Remove the toothed belt protective cover. Loosen the alternator drive belt and remove it from the pulleys. Remove the alternator drive pulley from the crankshaft and tighten the pulley mounting bolt back into place.

Set the gearbox lever to neutral and turn the crankshaft clockwise to a position where the mark on the flywheel (see figure 52), visible in the clutch housing hatch, was opposite the middle division of the scale. In this case, the mark on the camshaft pulley should be opposite the installation mark on the rear protective cover of the toothed belt.

Loosen the tension roller axle mounting nut and turn it to a position where the belt is as loose as possible. Remove the belt from the pulleys.

Put a new belt on the crankshaft pulley and, pulling both branches of the belt, put the left branch on the coolant pump pulley and put it behind the tension roller. Put the belt on the camshaft pulley and slightly tighten it with the tension roller, turning the roller axis counterclockwise. When installing the belt, avoid sharp bends.

Turn the crankshaft two revolutions clockwise and check whether the timing marks on the pulley and the rear protective cover of the toothed belt match, and also whether the mark on the flywheel is opposite the middle division of the scale (see figure 52).

If the marks do not match, then repeat the belt installation operation. If the marks match, then unscrew the bolt from the crankshaft, install the generator drive pulley and secure it with a bolt and washer, finally tightening it with a torque of 10.5 kgf·m.

Adjust the belt tension as specified in the Engine Adjustments section and install the front toothed belt cover. Install the alternator drive belt and adjust its tension (see ibid). Check and, if necessary, adjust the ignition timing.