Pay attention to the tension and wear of the engine pulley during routine inspection
2022-11-23
Phenomenon: When the engine is running, there will be abnormal noise, such as rustling, squeaking, squeaking, etc. When the engine stops, you can move the pulley by hand to check whether there is sputum. If the gap is large, replace the belt. Middle wheel.
When driving without timely replacement, sometimes the swing of the middle wheel will lead to belt acceleration and wear. Sometimes the pulley in the belt is stuck and the belt is polished, sometimes the pulley itself falls off, the belt falls off, and the engine generator and water pump, as well as the steering pump, air conditioning pump and other components require the power source of the engine to be lost, which causes the vehicle to fail and cannot drive normally.
If the car engine runs between 60000 and 90000 kilometers, we should check the wear of the belt and the working condition of the engine pulley. In case of any abnormality, replace it. Even if the belt is not seriously worn, replace the engine pulley.
Daily inspection method of belt
Belt inspection mainly includes two aspects: belt tension and belt wear.
First check the tension of the belt. At this time, press the belt between the two pulleys with your thumb. The pressure is about 10kg. If the belt pressure is about 10mm, the belt tension is considered appropriate. If the pressing amount is too large, the belt tension is considered insufficient. If the belt hardly decelerates, the belt tension is considered too large. When the tension is insufficient, the belt is easy to slide. When the tension is too large, it is easy to damage the bearings of various auxiliary machines. To do this, loosen the relevant adjusting nut or bolt to adjust the tension of the belt to the best condition.
In addition, pay attention to the wear of the belt. The old belt is seriously worn, resulting in a sharp drop in the contact area between the belt and the pulley. At this time, as long as the belt is pressed hard, the belt will sink deeply into the groove of the pulley. The rubber of the belt is also aging. If the belt rubber is seriously deteriorated, it must be replaced with a new belt in time.
There are several belts at the front of the engine, each of which plays an important role. On the engine, various auxiliary machines are driven by drives, such as air conditioning compressor, power steering oil pump, alternator, etc. If the belt breaks or slides, it will cause the relevant auxiliary machine to lose its function or reduce its performance, thus affecting the normal use of the car. Therefore, the daily inspection of the belt is very important.
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