Crankshaft pulley — removal and installation (Opel Astra G)

Engines 1.4, 1.6 and 1.8 l

1. Raise the front of the car and place it on stands, remove the right wheel and the protective fender panel.

2. Remove the drive belt (Chapter 1).

3. Secure the crankshaft from turning and unscrew the bolt. To secure the crankshaft, engage the highest gear and have an assistant press the brake pedal. On models with an automatic transmission, unscrew one of the drive disk mounting bolts and secure the disk relative to the crankcase using a bar and 2 bolts. If the bolt unscrews on a removed engine, secure the flywheel with a tool by the toothed ring.

4. Remove the washer and pulley, taking care not to damage the crankshaft angle sensor.

5. Installation is carried out in reverse order (see photo). Tighten the pulley bolt in 2 stages (see Technical data).

Engine 2.0 l

6. Set the piston of the 1st cylinder to TDC of the compression stroke.

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7. Further, the procedure for removing the pulley is no different from that discussed above for 1.4-1.8 l engines (the pulley on the 2.0L engine is secured with several bolts).