Note: The right front wheel may need to be removed.
19. Removing the pulley is not particularly difficult. The pulley is mounted directly on the trunnion or on the crankshaft gear. On most engines, the pulley acts as a torsional vibration damper. To remove it, depending on the model, it is necessary to unscrew one central or several bolts located along the perimeter of the mounting flange.
20. With the first mounting method - Z14XE / Z16SE / Z16XE / Z18XE engines - you must first block the engine flywheel from turning, for which remove the plug on the flywheel dome and install the special tool Opel-KM-911 (see resist. illustration) If this is not enough to lock, engage first gear and apply the parking brake. Do not forget to remove the locking device if, after disconnecting the pulley, it will be necessary to rotate the crankshaft.
5.20. Blocking the engine flywheel from turning using the KM-911 tool - the arrow indicates the location of the plug (on the example of the Z16SE engine)
21. On multi-bolt pulley models (mounting bolts are located around the perimeter of the pulley) the crankshaft must be held against turning by the central hexagon with a socket wrench.
22. If the gearbox was previously disconnected from the engine, the flywheel is blocked using a special stopper mounted on the engine housing (see Section 15).
23. To eliminate a malfunction when making a long trip, when it is not possible to jack up the car, etc., in order to block the crankshaft from turning, ask an assistant to turn on the gear and depress the foot brake pedal all the way (on models with manual transmission).
24. Before removal, if there are no special marks or mounting pins / keys for installing the pulley in a strictly defined position, it is necessary to remember its position on the mounting flange / crankshaft shank, for which mark with a core or marker.
25. Installation of a pulley is made in an order, the return to its removal. Tighten the fixing bolts to the required torque (see specs). When installing, use only new bolts.
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