one. Addition of Cooling Water In the spring and autumn, when cooling water is poured into the repaired engine, as long as the water in the tank can be submerged in the water pipe, the cooling water can be maintained to circulate. This will shorten the heat engine time. When the water temperature rises to 80°C, it will slowly add cold water to the tank. Be careful not to top up the tank one at a time to avoid running the engine at low temperatures for a long time. To warm up the engine in winter, the engine must be filled with hot water. In the cold regions of the north, warm water of 40-50°C should be added to the tank first to prevent the heat pipe from bursting suddenly due to thermal expansion. Then heat the water and wait for the open drain switch to flow out of the warm water before turning it off. The engine can be started by filling the tank with hot water. Second, the engine water temperature is too high 1 water tank water shortage: 2 fan belt too loose; 3 improper use of insulation curtain; 4 heat pipe plug; 5 pump can not work properly; 6 fueling (diesel engine) or ignition (gasoline) too late; 7 There is excessive accumulation of scale in the cooling system. Third, when scale cleaning is heavy, add 750 grams of caustic soda and 250 grams of kerosene per 10 litres of water. When scale is light, add 1000 grams of soda powder and 500 grams of kerosene per 10 liters of water. Add the cleaning solution to the water tank, start the engine, run at medium speed for 5-10 minutes, stall for 10-12 hours, restart the engine plant for 5-10 minutes in the middle speed, turn off the flame after combustion, release the cleaning fluid while hot, add clean Cool the water, let the engine run at medium speed for a few minutes to let off the water, so that it can be washed 2-3 times repeatedly.