In winter, the temperature is low, and the cylinder head of diesel engine is prone to cracks and water leakage. The main reasons are as follows:
1. Add cooling water after starting. After the diesel engine is started, the temperature inside the engine rises immediately. If cooling water is added at this time, the cylinder block and cylinder head will be cooled rapidly, and cracks will occur due to cold shrinkage.
2. After the shutdown, no cooling water is released. The water inside the machine freezes into ice, increases in volume, and cracks in the cylinder block and cylinder head.
3. When the diesel engine is running, the cooling water is insufficient or the temperature of the boiler boiler in the water tank is too high, and cooling water is suddenly added. Shrinkage of cylinder block and cylinder head can also cause cracking.
4. Diesel engine runs for a long time and the temperature inside the engine is high. Discharge the high temperature water immediately after stopping. It will cause high-temperature parts to suddenly encounter cold air and crack.
5. Use the decompressor to shut down, so that the high-temperature cylinder head suddenly encounters cold air and causes cracking.
