
Removing and checking the thermostat
When checking the thermostat on a car after starting a cold engine, the bottom hose from the radiator should remain cold for a while

Replacing the supports of the power unit VAZ-21126
The power unit (engine and gearbox) is mounted on two rubber pads front and rear, mounted through brackets on the engine and gearbox housing

Remove the engine screen. Relieve pressure in the power system
We check the health of the injector windings with the ignition off

An external sign of wear on the valve stem seals is the short-term appearance of blue smoke from the exhaust pipe after starting the engine and when braking the engine after a long drive under load

How carburetors work
The carburetor is used to create a fuel-air emulsion, depending on the conditions and specified operating modes of the engine cylinders