Cooling system of car engines VAZ-2121

All articles on the device and repair of components and assemblies of the engine cooling system of VAZ-2121 Niva cars and their modifications.

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

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

Filling the cooling system with liquid
Filling is performed when changing the coolant or after engine repair. Filling operations are performed in the following order: remove the plugs from the radiator and the...

Adjusting the tension of the pump drive belt
The belt tension is checked by its deflection between the generator and pump pulleys or between the pump and crankshaft pulleys. With normal belt tension, deflection A (Fig. 2-61)...

Coolant pump — disassembly and assembly
Disassembly To disassemble the pump: detach the pump body from cover 2 (Fig. 2-62); Fig. 2-62. Longitudinal section of the coolant pump: 1 - body; 2 - lid; 3 - Fan casing mounting...

Thermostat is a device
The thermostat should be checked for the temperature at which the main valve starts to open and for the stroke of the main valve. To do this, install the thermostat on the...

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

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More articles from other manuals on VAZ cars:
➠ Power unit: Cooling system VAZ-2114 (2004-2013)
➠ Power unit: Cooling and lubrication system VAZ-2108 (1984-2003)
➠ Power unit: Cooling system VAZ-21011 (1974-1983)
➠ Power unit: Cooling and lubrication system VAZ-21061 (1976-2006)
➠ Power unit: Cooling system VAZ-1111 (1988-1996)

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