Radiator cleaning
Using water or a steam cleaner, clean the radiator core. Caution: When using a high pressure cleaner, take care not to damage the tubes and fins of the radiator core. In particular, at a pressure of 30 - 35 kgf / cm2 (2940 - 3430 kPa) it is necessary to keep the atomizer at a distance of 40 - 50 cm from the surface of the radiator.
Details.
1 - fan,
2 - coolant pump,
3 - viscous coupling of the fan drive,
4 - drive pulley of the coolant pump,
5 - gasket,
6 - fan drive option without viscous coupling,
7 - fan drive shaft (drive without viscous coupling),
♦ - a part that cannot be reused.
Radiator check
1. Check the cap of the radiator or expansion tank.
Using a tester, check the opening of the steam valve, which should open in the pressure range of 0.75 - 1.05 kg/cm2 (74 - 103 kPa). Check the tightness of the plug when the pressure drops below 0.6 kg/cm2 (59 kPa).
In case of any violations, replace the plug.
2. Check the cooling system for leaks.
A) Fill the system with coolant and attach a radiator tester.
b) Warm up the engine.
V) Use a tester to create a pressure in the cooling system of 1.2 kg / cm2 (118 kPa), make sure the pressure does not drop. If the pressure drops, try to fix leaks in the radiator, hoses, pump. If no sources of external leakage are found, check the radiator core, cylinder block, cylinder head and intake manifold.