Remove the circlip and press the impeller and bearing off the shaft using a press.
Remove the sealing collar and thrust sealing ring.
Rinse the parts and check their technical condition. Assemble the water pump in the reverse order of removal, taking into account the following:
- press the impeller onto the roller, applying sealant such as Loctite 270 to the mating surfaces «IN» 1±0.2mm shown in the photo. When installing previously used parts during pressing, apply a force of approximately 400 kgf, for new parts it is 500 kgf;
- when installing the hub, maintain the size «A» 3±0.5 mm shown in the photo.
Thoroughly clean mating surfaces and replace copper washers.
In the future, the installation of the water pump is carried out in the reverse order of removal. Fill in the coolant by first turning the handle of the heater tap control switch to the stop clockwise.
Start the engine and check for coolant leaks.