Pic. 467. Elements of the cooling system located on the engine: 1 - bolt, 20 Nm; 2 - pulley; 3 - V-ribbed belt; 4 - bolt, 10 Nm; 5 - coolant pump; 6 - bolt, 20 Nm + 90°; 7 - sealing ring; 8 - clamp; 9 - temperature sensor; 10 - holder; 11 - oil cooler; 12 - connecting element; 13 - hose to the bottom of the radiator; 14 - thermostat; 15 - gasket (replace always); 16 - nut, 30 Nm; 17 - bracket; A - to the radiator; B - to the heater radiator; C - from the heater radiator
Pic. 468. Coolant pump: 1 - bolt, 20 Nm; 2 - coolant pump; 3 - bolt, 10 Nm; 4 - bolt, 10 Nm; 5 - coolant temperature sensor, 7 Nm; 6 - thermostat; 7 - bolt, 10 Nm; A - attached to the cylinder head; B - to the heat exchanger; C - to the heater core; D - from the radiator
The coolant pump is located to the right of the engine and is driven by a V-ribbed belt from the engine crankshaft (pic. 467). On fig. 468 pump shown separately.
To remove the coolant pump:
- turn off AB;
- place the front of the car on supports and remove the crankcase protection;
- drain the coolant from the cooling system (see 19.1.1);
- loosen the coolant pump pulley bolts while the belt is on;
- remove poly V-belt;
- remove the coolant pump pulley;
- unscrew the four bolts of the crankshaft pulley and remove the pulley;
- remove the lower part of the drive belt guard;
- loosen the hose clamps at the points of their attachment to the pump, and disconnect the hoses;
- Remove the pump mounting bolts and remove the pump from the cylinder block. Remove the O-ring and check its condition. Another O-ring is between the pump inlet pipe and the coolant pump housing.
The pump is installed in the reverse order. The tightening torque of the pump and pulley bolts is 20 Nm.
Install the V-ribbed belt and adjust its tension as described in clause 19.3.3.
Pour coolant into the cooling system (see 19.1.1).
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