Note: The presence of liquid droplets or traces of vapor at the coolant pump air bleed hole should not cause concern unless it leads to more significant fluid loss.
Removal
Disconnect the ground wire from the battery.
Drain the coolant into a container. Then immediately connect and secure the hose.
Remove the V-belt.
Remove the front timing belt cover.
Loosen the timing belt.
Loosen the coolant pump mounting bolts and remove the pump.
Installation
Clean the mating surfaces of the pump and cylinder block.
To prevent corrosion of the pump, it is necessary to lubricate the mating surfaces with silicone grease, for example Opel 1970206 (901763530). A rusted pump prevents it from turning to tension the toothed belt.
Install the coolant pump with a new gasket onto the cylinder block.
Attention! Screw in the bolts by hand.
Put on and tighten the timing belt.
Tighten the pump mounting bolts: for 1.4 and 1.6 l engines - to a torque of 8 Nm (M6 bolts), for 1.7, 1.8 and 2.0 l engines - to a torque of 25 Nm (M8 bolts).
Install the front timing belt cover.
Put on and tighten the V-belt.
Fill with coolant.
Connect the ground wire to the battery.
1.7L TC4EE1 Turbocharged Diesel Engine
Removal
Loosen the four nuts securing the coolant pump pulley and remove the pulley.
When loosening the nuts, hold the pulley from turning using the Hazet 2170 (C7265) device.
While holding the central crankshaft mounting bolt with a spanner, loosen the pulley mounting bolts. Remove the pulley.
Loosen the coolant pump mounting bolts and remove it from the cylinder block together with the impeller cover.
Installation
Insert the impeller cover into the cylinder block.
Insert the coolant pump with a new gasket into the cylinder block and tighten its bolts to a torque of 10 Nm.
Install the crankshaft pulley in place and tighten its bolts to a torque of 10 Nm.
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