65.03101-6071b Diesel Engine Cylinder Head Assy for Doosan Crawler Excavator Dh220LC-V

In winter, when the temperature is low, diesel engine cylinder heads are prone to cracking and water leakage. The main reasons for this are as follows: 1. Add cooling water only after starting. After the diesel engine starts, the temperature inside the engine immediately rises. If cooling water is added at this time, the cylinder block and cylinder head will rapidly cool down and crack due to cold shrinkage. 2. After shutdown, no cooling water was discharged. The water inside the machine freezes into ice, causing the volume to increase and causing the cylinder body and cylinder head to expand and crack. 3. When the diesel engine is running, if the cooling water is insufficient or the temperature of the water tank is too high, suddenly add cooling water. Overcooling shrinkage of the cylinder block and cylinder head can also cause cracking. 4. The diesel engine has been running for a long time, and the temperature inside the engine is high. After stopping, immediately drain the high-temperature water. It can cause high-temperature parts to suddenly crack when exposed to cold air. 5. Stopping the engine using a pressure reducer caused the high-temperature cylinder head to suddenly encounter cold air and cause cracking. There are the following methods to prevent cracking of various cylinder bodies and cylinder heads: 1. Before starting the diesel engine, warm hot water should be added to the water tank. In severe winter seasons, hot water should be injected 2-3 times. It is best to start when the water flowing out of the drain valve is about 30-50 ºC. 2. When the diesel engine runs for a long time, it should wait for about half an hour after shutdown, and then drain the cooling water when the engine temperature drops to 40-50 ºC. After draining the water, it is best to use a fine iron wire to poke through the drain valve switch to prevent sediment from blocking the drain valve. 3. When the diesel engine runs overheated and severely lacks water, it should be allowed to idle at low speed for 10-15 minutes before slowly adding cooling water.

Jinan CARMAN International Trade Co., Ltd. has been committed to building excellent suppliers in the automobile industry for many years, providing high-quality vehicle and auto parts services for new and old customers. Our company was founded in 2013,Warehouse inventory is huge, and many kinds, to meet your various needs. The company has been adhering to the quality as the core,to serve customers as their responsibility, strict with themselves, has been China and the world a lot of quality inspection,china heavy truck spare parts has been exported to Russia,the United States, Europe and Southeast Asia and other countries.Our company is looking forward to your attention and visit.

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Jinan Carman International Trade Co., Ltd. is located in Shandong. It has a registered capital of 5 million and has been in the company for 12 years. Here, we always provide customers with good products and technical support, and sound after-sales service. We supply many parts for diesel engine including Weichai, Shangchai, Yuchai, Deutz. We have always pursued the concept of sincere cooperation, coordinated development, and win-win excellence, and pursue long-term and outstanding achievements. We have successfully provided global customers with high-quality technical services and timely spare parts supply, and have established stable cooperative relations with customers in North Africa, Central Africa, Southeast Asia, the Middle East, Latin America and other regions. Seek long-term partnerships with global business partners and better serve our customers in the future. We have good products and a professional sales and technical team.