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奔驰发动机出现异响懂检修与解决!

来源:http://www.sdrunao.com/ 发布时间:2020-05-18   发布人:admin
  故障现象:发动机在运转时,有嗖、嗖、嗖样的异音,而且变速时振动过大。
  Fault phenomenon: when the engine is running, there is a whoosh, whoosh, whoosh like noise, and the vibration is too large when changing speed.
  故障检修:为了确认故障症状,即起动发动机试验,在怠速运转状态,异音很小,不大能听清楚,但是在怠速运转状态空调开关一拨到ON,瞬间就产生嗖、嗖、嗖的皮带打滑声。
  Troubleshooting: in order to confirm the fault symptoms, i.e. start the engine test, the abnormal sound is very small and can not be heard clearly in the idle running state, but when the air conditioner switch is turned to on in the idle running state, the belt slip sound of swish, swish and swish will be produced instantly.
  空调压缩机皮带打滑是发动机产生异音的原因。
  The belt slip of air conditioning compressor is the cause of abnormal noise of engine.
  打滑的原因不外乎皮带老化、皮带张紧轮不良、张紧轮调节器不良等。
  The reasons for the slippage are not only the aging of the belt, the poor belt tensioner, the poor tensioner adjuster, etc.
  其次确认变速时振动过大,从N档位向R档位、D档位变换档位时以及在行驶中换档时都产生很大的振动。
  Secondly, it is confirmed that the vibration is too large when changing gears, such as from n to R, D and driving.
  进行行驶试验,从3档向4档升档时以及从4档向3档降档时,变速振动较小,1档与2档之间的升档和降档,2档与3档之间的升档和降档振动较大。
  In driving test, the vibration of gear change is small when the gear change is from 3rd to 4th and from 4th to 3rd. The vibration of gear change is large when the gear change is from 1st to 2nd and from 2nd to 3rd.
  变速振动过大的原因不外乎驱动轴的橡胶联轴节老化或者折裂,自动变速器操作油压过高或者自动变速器内部的零件不良。
  The reasons for the excessive vibration of the transmission are the aging or fracture of the rubber coupling of the drive shaft, the high operating oil pressure of the automatic transmission or the poor parts inside the automatic transmission.
济南奔驰汽车维修
  首先寻找变速振动大的原因,反复操作变速选择杆,确认变速振动状态。
  First of all, find out the reason of large vibration of variable speed, operate the variable speed selector repeatedly, and confirm the state of variable speed vibration.
  试验结果,从N档位向D档位变换时,离合器缔结的瞬间产生咕嗤一声,振动之后又喀嚓一声,在驾驶席上也能清晰地确认。
  The test results show that when changing from n gear to D gear, the clutch will make a hiss at the moment when it is closed, and a snap after the vibration, which can also be clearly confirmed on the driver's seat.
  如果说这种声音是自动变速器产生的,则非常不好理解。
  If this sound is generated by automatic transmission, it is very difficult to understand.
  马上把车子举升起来,用于转动驱动轴一试,手左右摆动就可以听见咔嚓、咔嚓的小响声。
  Lift up the car immediately and use it to rotate the drive shaft for a test. You can hear a small click when you swing your hand left and right.
  拆下驱动轴,发现橡胶联轴节变形得将裂开了。
  Remove the drive shaft and find that the rubber coupling is deformed and will crack.
  根据以上的作业结果,把不良的零件,即空调压缩机的驱动皮带、皮带张紧轮、张紧轮调节器一起更换了。
  According to the above operation results, the defective parts, i.e. the driving belt, the belt tensioner and the tensioner adjuster of the air conditioning compressor, were replaced together.
  这三个零件配套更换效果好一些。
  The replacement effect of these three parts is better.
  因为变速而产生异音,所以更换了驱动轴橡胶弹性联轴节。
  The rubber elastic coupling of the drive shaft was replaced because of the abnormal sound caused by the speed change.
  作业结束后进行试验行驶,结果发动机异音完全消除,从N档位向行驶档位切换时以及行驶中换档振动也完全消除
  After the operation, the test driving was carried out. As a result, the abnormal noise of the engine was completely eliminated, and the shifting vibration was also completely eliminated when shifting from n to driving and during driving
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