#wheel loader spare parts##wheel loader cylinder gasket##wheel loader bushing##wheel loader Torsional Vibration Damper##second-hand wheel loader#
The cylinder gasket is burned by the high-temperature gas in the cylinder, which is called “burning the cylinder gasket”, also known as “burning the cylinder gasket”. After the diesel engine flushes the cylinder gasket, abnormal phenomena such as “bubbling” of the water tank, water in the oil pan, emulsification of the engine oil, and drainage of the exhaust pipe (white smoke) will generally occur. The main reasons for flushing the cylinder gasket are:
⑴ Cylinder head deformation
The cylinder head is thermally deformed due to the alternating effect of high temperature and high pressure gas for a long time; improper disassembly and assembly (not disassembling and assembling in sequence) will also cause deformation. After the cylinder head is deformed, the raised part cannot press the cylinder gasket tightly, causing high-temperature gas leakage and burning the cylinder gasket.
⑵ The height of the cylinder liner boss is different, causing individual cylinders to be poorly sealed.
In order to make the cylinder liner and cylinder gasket pressed against the cylinder body and maintain good sealing, it is generally required that the cylinder liner end face boss plane is higher than the cylinder body by a certain size (generally 0.05-0.12mm). The difference in the protrusion of the cylinder liner of the same diesel engine (or two cylinders under the same cylinder head) is also specified (generally 0.05mm). If it exceeds the specified value, it may cause insufficient sealing pressure, causing high-pressure and high-temperature gas to burst out and damage the cylinder gasket.
⑶ Loose cylinder head bolts or insufficient tightening torque
When the diesel engine leaves the factory, the manufacturer provides the use and maintenance instructions with clear requirements for the torque of the cylinder head fastening bolts. During maintenance, the cylinder head should be tightened strictly according to the specified time and method.
⑷ The cylinder gasket assembly method is incorrect or the cylinder gasket is of poor quality.
⑸ The machine is not working properly and overheating causes the cylinder gasket to be punched.
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Post time: Dec-10-2024