How to correctly replace the cooling water of the engine
Time:2023-07-26 Click:281
After the engine cooling water has been used for a period of time, the minerals have been precipitated. Unless the cooling water is very dirty and may block the pipeline and radiator, do not replace it lightly. Because the newly replaced cooling water, even though it is soft water or softened hard water, will still contain some minerals, and these minerals will be deposited in the water jacket and other places to form new scale. The more minerals there are, the thicker the scale will be, and the worse the cooling capacity of the engine will be, which will often cause the engine to overheat, resulting in a decrease in engine power and affecting the service life of the engine. Therefore, the cooling water should be replaced according to the specified method steps and steps according to the actual situation.
When replacing the cooling water, the engine cooling system should be cleaned by "alkali washing" or "acid washing". The "alkali cleaning method" is a method of cleaning the cooling system by using 750 grams of caustic soda, 150 grams of kerosene, and 10 kilograms of soft water to prepare a cleaning solution. "Alkaline cleaning method" is a method of cleaning the cooling system with 2.5% hydrochloric acid cleaning solution. The steps to clean the engine cooling system are as follows: firstly, unscrew the water tank cover and drain the cooling water; secondly, remove the thermostat seat, take out the thermostat seat, and reinstall the thermostat seat; thirdly, fill the cleaning fluid into the In the cooling system, after starting the engine, first idle and then run at a medium speed. When the temperature of the cleaning fluid reaches about 80°C, turn off the engine, and when the temperature of the cleaning fluid drops to about 50°C, release the cleaning fluid; Rinse the engine water jacket, radiator and other parts with clean water; finally, reinstall the thermostat, install the connecting water pipes, and fill in cooling water that meets the requirements.
