Note: Repairing the water pump usually does not lead to the desired result, so it is recommended to replace the pump assembly.
1. The water pump needs to be replaced if:
- during operation, a coolant leak from the pump was noticed;
- there is noticeable axial play of the pump shaft (more than 0.13 mm);
- cracks, chips, and flaking were found on impeller 1, pulley 3, or pump housing 2.
The bearing with the roller is fixed in the pump body with a locking screw 4. For sealing, a gasket 5 is installed between the pump body and the cylinder block.
[The original source is published on the website VazBook]
2. Install the water pump in the reverse order of removal, replacing the sealing gasket. Then adjust the camshaft drive belt tension and fill with coolant (see subsection 11.5.7.).