Loosen the bolts securing the pump cover and remove it together with the bushing, shaft and impeller, detach the cover from the gasket plane with light blows of a plastic mallet.
Unscrew the thermostat fitting and remove the thermostat with the sealing cuff.
The pump cover is integral with the bearing and cannot be separated from it; if a fault is detected, they are replaced as a set.
Install the pump body gasket, having first applied sealant.
Assemble the pump in the reverse order of disassembly.
Water pump parts: 1 - pump body; 2 - thermostat cover; 3 - thermostat (installed by a spring on the side of the water pump; 4 - pump bearing cover; 7 - pump drive pulley.