Astra J
Water Pump Replacement (LDD and LUJ)Removal Procedure
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| 1. | Drain the cooling system. Refer to Cooling System Draining and Filling |
| 2. | Remove the engine coolant thermostat housing from water pump. Refer to Engine Coolant Thermostat Housing Replacement |
| 3. | Remove the water pump pulley. Refer to Water Pump Pulley Replacement |
| 4. | Remove the heater outlet hose from the water pump. Refer to Heater Outlet Hose Replacement |
| 5. | Remove the 5 water pump bolts (4) and the 5 long engine front cover bolts (3). |
| 6. | Remove the water pump (2). |
| 7. | Remove and DISCARD the water pump gasket (1). |
Installation Procedure
| 1. | Clean the sealing surfaces. |
| 2. | The water pump and engine front cover bolts are located as followed: |
| • | Engine front cover special bolt without cone end 60 mm (2.362 in) (1). |
| • | Engine front cover standard bolt with cone end 52 mm (2.047 in) (2). |
| • | Water pump bolt 25 mm (0.984 in) (3). |
| 3. | Install the water pump (2) and a NEW water pump gasket (1). |
Caution: Refer to Fastener Caution |
| 4. | Install the 5 water pump bolts (4) and the 5 engine front cover bolts (3) and tighten in a cross sequence to 8 N·m (71 lb in) . |
| 5. | Install the heater outlet hose from the water pump. Refer to Heater Outlet Hose Replacement |
| 6. | Install the water pump pulley. Refer to Water Pump Pulley Replacement |
| 7. | Install the engine coolant thermostat housing to the water pump. Refer to Engine Coolant Thermostat Housing Replacement |
| 8. | Fill the cooling system. Refer to Cooling System Draining and Filling |
