2. Remove the radiator (Chapter 7).
3. Remove the drive belt pulley from the cooling fan hub (four screws).
4. Unfasten and remove the timing belt covers.
5. Turn the engine with a wrench on the crankshaft pulley bolt until the mark on the camshaft sprocket aligns with the pointer on the top of the rear timing belt cover. Also align the notch in the crankshaft pulley with the pointer on the bottom of the rear timing belt cover.
6. Loosen the three bolts securing the water pump to the block.
7. Loosen and remove the bolt securing the water pump portion of the drive cover to the oil pump housing.
8. Turn the water pump housing counterclockwise. Remove the toothed drive belt from the water pump sprocket, tie it aside.
9. Unscrew and remove the three clamp bolts and washers, remove the water pump from the block (photo).
10. Remove the rubber O-ring from the groove in the water pump (photo).
11. If a new water pump is being installed, transfer the drive cover portion to the new pump (photo). Install the cover on the new water pump in the same manner.
12. Begin installation by lubricating the water pump contact surface with silicon grease or equivalent. If this precaution is not taken, the water pump may seize in the block.
13. Apply grease to the rubber O-ring and place it in the groove.
14. Position the water pump in the block. Insert the clamp bolts and washers.
15. Install the timing belt onto the water pump sprocket. Rotate the water pump clockwise and tighten the belt. Complete the tensioning procedure as described in Section 1, making sure the timing marks are aligned correctly. Tighten the water pump bolts to the specified torque Specification.
16. Insert and tighten the bolt securing the drive cover to the oil pump housing.
(Material copied from this resource: «www.opelbook.ru»)
17. Install the timing belt covers.
18. Install the drive belt pulley onto the cooling fan hub and tighten the screws.
19. Install the radiator (Chapter 7).
20. Install the alternator/fan drive belt (Chapter 13) and a thermo-viscous cooling fan (Chapter 11).
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