Radiator
The radiator is tubular-finned, with a safety valve built into the plug.
Safety valve opening pressure: kg/cm:
- on pressure increase: 1+0.15-0.10;
- with pressure drop: up to 0.9.
Safety valve brand: Langeru et Reich or Behr.
Safety valve control pressure, kg/cm2: 1.5.
On vehicles with automatic transmission, a radiator with an oil cooler is installed.
Oil cooler pressure, kg/cm2:
- control: 12.0;
- working: 8.0.
Water pump
The rotary water pump is mounted on the front of the cylinder block.
Gap between pump housing and impeller, mm: 1±0.2.
Water pump drive V-belt
Deflection of the belt when pressing with a finger on the middle of the belt branch between the pulleys of the water pump and the generator, mm: 5-10.
The frequency of checking the belt tension: every 15 thousand kilometers.
Fan
The fan is five-bladed. Diameter, mm: 360.
Thermostat
Main valve opening temperature,°С: 80±1.5.
Piston stroke of the main valve at a temperature of 80°±1.5°, mm: 8.
Brand: Wamer.
Coolant
Capacity of engine cooling and interior heating systems, l: 7.2.
Coolant used: a mixture of distilled water and antifreeze in a ratio of 60% and 40% (at temperatures up to -25°С).
Replacement interval: every two years of operation.