Yaroslavl Engine Plant YMZ-536 Operation Manual page 83

А
The water pump suction cavity and the volute are located in the
aluminum housing of the service module. The pump drive spindle 8 is
made as a single piece with the double-row ball-and-roller bearing and
3 2 1
Fig. 25 Water pump with thermostats:
1 – cooling liquid feed pipe from the vehicle
radiator; 2 – suction cavity; 3 – thermostat;
4 – water pump volute; 5 – water pump impeller;
6 – water pump housing; 7 – water pump pulley;
8 – water pump drive spindle; 9 – end seal;
10 – drain hole
A – end seal
4 5 6
10
7
8
A
9
83