Water Pump Replace Opel Antara I



Water Pump Replace

Remove

Warning: To prevent personal injury, do not remove the surge tank cap while the engine and the radiator are hot. Scalding fluid and steam may be blown out under high pressure.

1. Drain the engine cooling system to a level below the thermostat housing. Refer to Draining and Refilling the Cooling System .
2. Remove the timing belt. Refer to Timing Belt System Replace .

3. Remove the timing belt idler.
4. Remove the fuel injection pump sprocket.
5. Remove the timing belt rear cover.

6. Remove the water pump with the gasket.

Inspect

1. Inspect the water pump body for cracks and leaks.
2. Inspect the water pump bearing for play or abnormal noise.
3. Inspect the water pump pulley for excessive wear. If the water pump is defective, replace the water pump as a unit.
4. Clean the mating surfaces of the water pump and the engine block.

Install

1. Install the water pump with a new gasket.

Tighten

Tighten the water pump tightening bolts to 11 N•m (97.4 lb-in).

2. Install the timing belt idler.
3. Install the fuel injection pump sprocket.
4. Install the timing belt rear cover.

Tighten

Tighten the timing belt idler bolt to 52 N•m (38.4 lb-ft).

Tighten the injection pump sprocket nut to 70 N•m (51.6 lb-ft).

Tighten the timing belt rear cover bolts to 11 N•m (97.4 lb-in).