In winter, the temperature is low, and diesel engine cylinder heads are prone to crack leakage. The main reasons are the following:
1. Add cooling water after starting. After the diesel engine is started, the temperature inside the engine immediately rises. If cooling water is added at this time, the cylinder block and the cylinder head will cool rapidly and cracks will occur due to shrinkage.
2. After shutdown, no cooling water was put. The water in the machine freezes into ice and the volume increases, causing the cylinder block and the cylinder head to burst.
3, when the diesel engine is running, the cooling water is insufficient or the temperature of the water tank casserole is too high, suddenly adding cooling water. Cooling and shrinkage of the cylinder block and cylinder head can also cause cracking.
4. The diesel engine is running for a long time. The temperature inside the engine is high. Immediately after parking, let go of high-temperature water. Can cause hot parts to encounter cold air and crack.
5. Use the decompressor to stop the machine, so that the high temperature cylinder head suddenly encounters cold air and causes cracking.
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