Thermostat
Main valve opening temperature,°С: 85. Full opening temperature of the main valve,°С: 105. Main valve piston stroke, mm: 7.
Coolant pump
The coolant pump is located at the front left in the cylinder block. It is driven by a V-belt simultaneously with the generator.
Alternator and water pump drive belt
Belt brand and type: 9.5x950 La Continental V 1915 or Gates 6265 MC. The belt tension is considered normal if the belt deflection when the thumb is pressed hard on the middle of the belt branch between the crankshaft and generator pulleys is within 10-15 mm
Expansion tank
The opening pressure of the reducing valve in the tank cap, kg/cm2: 1.2-1.5.
Electric fan
Turning on and off the fan motor is carried out by the electric fan switch-on sensor located on the left radiator tank.
Electric fan brand: Bosch.
Temperature of inclusion of the electric motor of the fan,°C: 93-98. Fan motor cut-off temperature,°С: 88-93.
Coolant temperature sensor
The three-pin coolant temperature sensor is located on the fitting on the left side of the cylinder head.
Based on the signals from this sensor, the coolant temperature gauge, the automatic carburetor starter and the intake manifold heating device operate.
Coolant
Capacity of engine cooling and interior heating systems, l: 7.0.
Coolant used: mixture of distilled water and type antifreeze «G10» in the ratio of 60% and 40% (at temperatures up to -25°C).
Replacement interval: every two years of operation.
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