- keys "10", "17"
- two screwdrivers
Disconnect the wire from the "–" terminal of the battery and drain the coolant.
Set the piston of the first cylinder to the TDC position (see subsection 10.1.).
Remove the tension roller (see subsection 10.3.1.).
Remove the camshaft timing pulley (see subsection 10.4.2, operations 1–5).
The main defects of the water pump are coolant leakage from the pump and wear of the pump bearing (determined by the increased noise during its operation).
Repairing a water pump usually does not lead to the desired result. Therefore, it is recommended to replace the pump assembly.
1. Remove the four bolts and nut securing the rear cover of the camshaft drive belt.
2. Remove the rear camshaft drive belt cover.
3. Using a screwdriver inserted into the slot, carefully separate the pump from the block and remove it.
4. Remove the gasket from the pump.
5. Replace the water pump if coolant is leaking through the drain hole (the pump seal is damaged)...
6....there is a noticeable axial play of the pump shaft (the pump bearing is damaged)...
7....cracks, chips, and flaking were found on impeller 1, toothed pulley 2, and pump housing 3.
8. Check the tightness of the pump bearing lock screw. Tighten the screw if necessary.
9. Replace the damaged pump gasket.
10. Install the pump in the reverse order of removal, with the number on the pump facing up.
11. Install the remaining parts in the reverse order of removal. In this case, install the camshaft pulley with the protruding part of the hub away from the engine. After this, check the alignment of the TDC marks on the camshaft pulley and the rear cover of the drive belt. Adjust the tension of the camshaft drive belt (see subsection 10.3.3.) and fill with coolant.