4.1. Introduction

The cooling system of the engine is under pressure, circulation of cooling liquid is controlled by the thermostat and provided with the water pump located in a forward part of the block of cylinders.

Arrangement of elements of the cooling system of the engine

1. Radiator 2. System refrigerator air conditionings 3. The cooling fans

4. Water pump 5. Thermostat 6. Broad tank

Thermostat

1. Flange 2. Piston 3. Valve 4. Main spring 5. Additional spring 6. Basis 7. Valve 8. Valve saddle

Hydrometer

For check of a condition of cooling liquid you can use a hydrometer.