Cooling system of car engines VAZ-2121

Cooling system device
The device of the cooling system is shown in fig. 2-60. Pic. 2-60. Cooling system: 1 - hoses for supplying and draining fluid from the interior heater radiator; 2 - outlet pipe; 3...

Checking the level and density of liquid in the cooling system
The correct filling of the cooling system is checked by the level of liquid in the expansion tank, which, on a cold engine (at 15-20°C) should be 3-4 cm above the mark «MIN»,...

Filling the cooling system with liquid
Refueling is carried out when changing the coolant or after repairing the engine. Carry out the filling operations in the following order: remove the plugs from the radiator and...

Pump Drive Belt Tension Adjustment
Belt tension is checked by deflecting it between the alternator and pump pulleys or between the pump and crankshaft pulleys. Under normal belt tension, deflection A (pic. 2-61)...

Coolant pump — disassembly and assembly
Disassembly To disassemble the pump: disconnect the pump body from the cover 2 (pic. 2-62); Pic. 2-62. Longitudinal section of the coolant pump: 1 - body; 2 - cover; 3 - bracket...

Thermostat — device
At the thermostat, the main valve opening start temperature and the main valve stroke should be checked. To do this, install the thermostat on the stand BS-106-000, lowering it...

Radiator — removal and inspection
Removal from vehicle To remove the radiator from the vehicle: remove the spare wheel and remove the spare wheel support tube; drain the fluid from the radiator and cylinder block...