Automobile training: failure analysis of automobile wax thermostat

The wax thermostat has stable operation, low water flow resistance, large flow into the radiator, firm structure, long service life, heat resistance, freeze resistance and pressure resistance.

Due to the long-term operation of the thermostat, the valve opening is insufficient or the paraffin leaks, the spring cannot be circulated after tightening the valve, and only a small cycle will cause the engine to overheat and cause damage to the machine or serious machine accidents. The general driving 5000km should be updated. Therefore, it is necessary to regularly check the working conditions of the thermostat.

Inspection method of thermostat: first put the thermostat in a container filled with hot water, then heat up to check the valve:

1. Determine the starting temperature;

2. Determine the full opening temperature;

3. The valve lift when fully open.