How to judge the abnormality of the engine through the change of oil?

The engine is the heart of the sprinkler. The engine oil is the blood of the engine. Through the various manifestations of the blood, various engine failures can be discovered in time and it is solved in the bud.

When the sprinkler engine is abnormal, the following changes occur in the oil:

1. There are two main reasons for excess oil consumption. One is that the clearance between the piston and the cylinder wall is too large or has serious damage. The piston ring wears, and the cylinder wall wears or pulls the cylinder. Second, the oil seal is damaged, causing the oil to leak from the valve to the cylinder and participate in combustion. At the time of inspection, the engine cylinder pressure gauge can be used to detect the cylinder pressure of the engine, and the exhaust gas detector can be used to measure the exhaust gas of the vehicle.

2. The amount of oil has increased without notice. When checking the oil stock, it is found that the oil is significantly increased, which may be the result of leakage of coolant or fuel into the crankcase. At this time, by measuring the cylinder pressure, etc., check whether the cylinder pad is damaged, whether the cylinder wall or the cylinder sleeve has any trachoma, whether the cylinder head or the cylinder block is damaged, these faults will cause the coolant to infiltrate the crankcase, so that the oil level rises. . If this happens, the contaminated lubricating oil will not only lose its lubricating effect, but it will also corrode the internal parts of the engine and cause the engine to be overhauled in advance.

3. The oil quickly turns black. After the sprinkler is used for a period of time, the changed oil will gradually turn black. This is normal. However, when the synthetic oil was replaced, the oil quickly turned black, indicating that there was a lot of sludge in the crankcase. At this time, because the synthetic oil has a highly effective quiet additive, it can quickly clean the oil sludge and other debris deposited in the crankcase and float on the surface of the oil, so the oil will quickly turn black.

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At present, the most commonly used exterior materials are: PP, ABS, ASA, POM, PA, PC, PE, etc., but specific to each auto part of the materials used are different.


Car exterior decoration is without changing the function and structure of the car, the premise, by adding or refitting before and after the bumper, large siege, diversion plate and other accessories to change the appearance of the car, so that the car more beautiful and stylish to meet people's aesthetic and personalized needs. Mainly include: Automotive solar film decoration, Car Body film, the installation of large body siege, flow plate and spoiler decoration; skylight decoration, lamp decoration, car bottom decoration, other exterior trim auto parts (wheel cover, wheel arc decoration, eyeliner decoration, addition of flagpole lamp, car shelf, spare tire cover, anti-collision bar, decorative strip): Used in car body protective strips, Increase the body side of the aesthetic, and the body radian height consistent, durable not deformed. At the same time, the door switch is easy to bump the body paint to provide effective protection.

Exterior Trim

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