1 - radiator; 2 - temperature sensor; 3, 17, 20, 22 - hose; 5 - bolt (М6х25); 6 - thermostat in the housing; 7 - gasket; 3 - block head; 9, 13 - ring (20x3); 10 - heating hose; 11 - nut (M6); 12, 15, 16 - bolt; 14 - pipeline; 18 - heating pump; 19 - holder; 21 - air removal screw; 23 - timing cover; 24 - ring (68x5); 25 - engine pump; 26 - pulley; 27 - bolt (M6x16); 28 - nut (M6); 29 - expansion tank; 30 - tank cap
The pump shaft is driven by a poly-V-ribbed (multi-stream) belt simultaneously with the generator and the power steering pump from the engine crankshaft pulley. The viscous coupling controls the fan activation. When removing the coolant pump, replace the O-ring (24, 68x5).
Engines are fitted with drive belts «Hutchinson», its model depends on the vehicle equipment. The required belt tension is provided automatically by tightening the adjusting bolt of the tension roller to a torque of 0.8 kgf·m or by a hydraulic mechanism.