Yaroslavl Engine Plant YMZ-536, Operation Manual, Page: 83 / 168

83
1 2 3
4 5
6
7
8
A
9
10
А
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
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