Removal and installation the timing belt (Sierra)

Belt cover mounting bolts

Removal the timing belt tensioner using key 21.012

Installation signs of the gas distribution system

Removal

1. Set the gearbox to neutral and secure the vehicle with the parking brake.



2. Remove the V-belt by loosening the bolts securing the generator and moving it towards the engine.

3. Set piston 1 of cylinder to top dead center by turning the crankshaft by the bolt securing the V-belt pulley in the direction of working rotation until the top dead center mark aligns with the mark on the casing.

4. Unscrew the bolts securing the timing belt cover, tilt it to the side and forward and remove it.

5. Loosen the tension of the toothed belt by first unscrewing the Allen bolt (key s=6) on the belt tension block, then the Allen bolt (s=16) and, overcoming the resistance of the spring, tilt the tension block and completely unscrew the bolts.

6. Remove the timing belt pulley from the crankshaft. If the timing belt is removed only from the camshaft pulley, then the pulley should not be removed from the crankshaft.

7. Remove the timing belt.

Attention! Do not turn the engine by the camshaft pulley, as this may destroy the belt. If there are cracks, traces of oil or damage to the teeth on the belt, the belt must be replaced.

Installation

1. Check that the marks on the camshaft pulley and cylinder head match. If necessary, align the marks.

2. Install the intermediate shaft so that the mark on the distributor rotor is above the mark on the edge of the distributor. First, remove the distributor cover by lifting the 2 side mounting brackets with a screwdriver and unscrewing the 2 cover mounting screws.

3. Install the toothed belt on the crankshaft pulley and tighten the V-belt pulley on the crankshaft.



4. Install the timing belt onto the camshaft pulley and loosen the belt tensioner block.

5. Turn the crankshaft two turns by the V-belt pulley so that the tension block is on the toothed belt and tighten the tension block: first with a hexagonal head bolt, and then with an internal hexagon.

6. Turn the crankshaft another 2 revolutions and check the alignment of the marks on the camshaft pulley, distributor rotor and crankshaft V-belt pulley.

7. Install the timing belt cover.

8. Install the distributor cap (see Fig. Timing system installation marks).