[lei wo classroom] engine body overheating solutions

There are two main reasons for the high temperature of diesel engine:
First, the cooling system does not work;
Second, the engine itself failed
So how do you tell what went wrong?

check coolant

The most common reason for the high operating temperature of diesel engines is insufficient cooling fluid. During the operation of diesel engines, a large amount of underutilized heat will be generated, which will accumulate on the engine components. If the cooling fluid is insufficient, even if everything else is normal, the cooling effect will not be enough.

Check thermostat

Under normal circumstances, the thermostat valve at 78-88 degrees Celsius, as the temperature of the diesel engine gradually increased and gradually opened, the coolant more and more involved in the engine cycle cooling. The main faults of the thermostat are that the main valve cannot be fully open or stuck in the size of the circulation, aging, poor seal leakage of the expansion body, etc., these faults will lead to poor cooling water circulation and overheating of the engine.

check the oil quantity

Because the temperature of diesel engine is higher, the requirement of oil heat dissipation and lubrication is higher. Once excessive oil is added, the engine will encounter greater resistance when working. And if the oil added less, and affect the lubrication and cooling, so when changing the oil, must be in accordance with the requirements, not the more the better.

check fan

Now commonly used silicon oil clutch fan, will adjust the speed through the change of temperature, the key control component is the silicon oil fan on the front cover of the spiral-shaped bimetal plate thermostat, if it breaks or fatigue failure, will directly lead to the cooling fan stop or low speed operation, affect the engine cooling. Similarly, for other cooling fans using belt links, the tightness of the belt should be checked and adjusted to ensure the speed of the fan.

check the oil filter element

Due to the diesel engine work process, it is inevitable to produce some metal grinding debris, coupled with the entry of air debris, oil oxide production, so that the oil debris gradually increased. Many people in order to save dozens of dollars, the use of low-quality filter, not only easy to block, lose the role of intercepting impurities in the oil, but also can aggravate the cylinder block and other parts of wear, the result is more than worth the loss.

check your workload

The engine works under heavy load, which will generate more heat. Especially when the heavy dumper is climbing the slope, it is easy for the water temperature to be too high. If often like this, card friend should pay attention to, the engine is in such a state of work for a long time, the service life will be greatly attenuated, so must stop, act according to one's ability!

In fact, diesel engines. A fever & throughout; Often is the reason that many sided causes, among them a lot of low-level problems pass daily check to be able to avoid, accordingly, check maintains at ordinary times absolutely do not ignore.

& have spent

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