Set the gearbox lever to neutral, remove the front toothed belt cover and turn the crankshaft clockwise until the timing marks in the camshaft drive are aligned. Loosen the tension roller axle mounting nut and turn it until the toothed belt is loosened as much as possible.
Remove the right front wheel, engage fourth gear and turn the steering wheel all the way to the right to facilitate access to the front of the engine.
Raise the car on a lift, remove the engine mudguard, loosen the alternator drive belt and remove it from the pulleys. After unscrewing the mounting bolt, remove the alternator drive pulley, then the belt from the toothed pulley of the crankshaft and the pulley itself.
Remove the old seal from the oil pump cover and use mandrel 67.7853.9580 to press in a new seal, after lubricating it with engine oil.
Install the toothed pulley on the crankshaft and put the belt on it. Install the generator drive pulley and secure it with a bolt and nut. Put the generator drive belt on the pulleys and adjust its tension (see section. "Engine adjustments"). Install the engine mudguard in place.
Lower the vehicle. Lightly tighten the toothed belt with the tension roller, turning the roller axis counterclockwise. Turn the crankshaft clockwise two turns and check the alignment of the timing marks on the camshaft pulley (see figure 6) and flywheel (see figure 52).
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If the marks do not match, then loosen the belt with a tension roller, remove it from the camshaft pulley, adjust the position of the pulley, put on the belt and, slightly tightening it with a tension roller, check the coincidence of the installation marks again by turning the crankshaft two revolutions.
If the marks match, then adjust the tension of the timing belt (see ibid) and install the front timing belt cover. Put on and secure the right front wheel.
Connect the wire to the negative terminal of the battery, check and then adjust the ignition timing.