Engines with a capacity of 1.4 and 1.6 liters produced since June 1990.
Since June 1990, all 1.4 and 1.6 litre engines have been equipped with an automatic timing belt tensioner. These engines can be identified by the flat surface of the timing belt cover above the camshaft and by an additional tensioner roller mounting bolt below the crankshaft.
Installation and adjustment conditions
Installation should only be performed when the engine is cold.
The crankshaft pulley and timing belt cover must be removed.
Installation
Set the piston of the 1st cylinder to the ignition advance position before TDC.
The mark on the camshaft pulley must match the mark on the rear timing belt cover (see arrows in the top picture), and the mark on the crankshaft pulley must match the mark on the engine body.
Engines with a capacity of 1.4 and 1.6 liters produced since August 1992.
Loosen the coolant pump mounting bolt, but do not remove it completely.
Install the timing belt in the following order: crankshaft pulley, camshaft pulley, coolant pump pulley (i.e. counterclockwise).
Text copied from an internet website (OpelBook.ru)
Tighten the toothed belt by turning the cooling system pump using the Opel KM-412-A key.
Attention! The movable element 1 of the tension roller 2 must be at the right stop (see fig.D5445).
Make two full turns of the crankshaft in the direction of rotation until the piston of the 1st cylinder stops at TDC. To turn, use the head, installing it on the bolt of the toothed pulley of the crankshaft.
Attention! Rotate the crankshaft evenly, without jerking, to prevent the teeth of the timing belt from jumping. Do not change the position of the cooling system pump when rotating the crankshaft.
Loosen the toothed belt by turning the coolant pump in the direction of the arrow (see top of fig.D5446), achieving the coincidence of marks 1 and 2 on the base of the tension roller.
In this position, tighten the coolant pump mounting bolt to a torque of 8 Nm.
Attention! If the toothed belt must be loosened during any work, it is necessary to move the tension roller to the side until the holes 3 (Fig. 05446) coincide. In this position, insert the bolt into the hole and thus fix the tensioner. After this, the belt can be removed.
Install the timing belt cover.
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