If the oil cooler is damaged and not replaced in time, it can lead to serious consequences. The function of the oil cooler is to cool the lubricating oil and maintain the oil temperature within the normal working range. On high-power reinforced engines, due to the high heat load, an oil cooler must be installed. When the engine is running, the viscosity of the oil becomes thinner with increasing temperature, which reduces the lubrication capacity. Therefore, some engines are equipped with oil coolers, which lower the oil temperature and maintain a certain viscosity of the lubricating oil.

When repairing diesel engines that encounter the following situations, it is necessary to perform a strong cleaning of the oil cooler core:

① Diesel engine tile burning or axle holding failure;

② Diesel engine cylinder pulling or piston top burning failure;

③ When the resistance of the oil cooler is too high (exceeding 0.08 MPa).

To clean the engine oil cooler, gasoline, kerosene, or other specialized cleaning agents (such as carbon tetrachloride solution) can be used.

When cleaning, directly guide the cleaning agent into the oil cooler channel, block both ends, and then shake the oil cooler core up and down (or left and right). After releasing the cleaning agent, observe the effect. If the released cleaning agent is very dirty, you can wash it several times until you are satisfied.

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