When repairing a car, we often encounter the problem of abnormal sound of manual active transmission. Today, we have arranged the solution of abnormal sound for manual active transmission. Let's learn it together! 

变速箱异响修理方法

Solution to Repair of Gearbox Abnormal Sound

在诊断修理变速器异响毛病原因时，应区别异响发生的规律，依据情况进一步判别或许的毛病原因和方法。

When diagnosing and repairing the cause of abnormal noise in transmission, we should distinguish the rule of abnormal noise occurrence in advance, and further distinguish the possible cause of abnormal noise and solve the problem according to the situation.

轿车怠速时或行进过程中，在驾驶室听到变速器部位有异响。

When a car is idling or in the course of driving, there is an abnormal noise in the transmission part of the cab.

其或许原因是：

Perhaps the reason is that:

变速器油短少或油质变坏;变速器轴承磨损、松旷或轴承损坏;变速器轴弯曲;齿轮啮合不正常，啮合空隙过大或过小;齿轮齿面金属脱落，齿牙开裂或修理安装错位;变速杆与变速拨叉凹槽松旷。

The transmission oil is short or deteriorated; the transmission bearing is worn, loose or damaged; the transmission shaft is bent; the gear meshing is abnormal and the meshing gap is too large or too small; the gear tooth surface metal falls off, the teeth crack or repair and installation dislocation; the groove of the transmission rod and the transmission fork is loose.

相应的处理措施为：

The corresponding treatment measures are as follows:

轿车行进中有金属干冲突声，用手摸变速器外壳有棘手的感觉，这是因为短少光滑油或光滑油变质而引起的响声，应加油或查看油质，必要时替换。

There is a clash of dry metal in the car, and it is difficult to touch the transmission case by hand. This is due to the noise caused by the deterioration of short smooth oil or smooth oil. The oil quality should be oiled or checked and replaced when necessary.

空档时变速箱有异响

There is abnormal noise in gearbox in neutral gear

空档时有异响，踏下离合器踏板后声音，一般为变速器一轴前后轴承磨损、松旷或常啮合齿轮响，如换入任何档位都响，多为第二轴后轴承响，对于严峻松旷或损坏的轴承，应进行修理或替换。

When in neutral, there is abnormal noise, after stepping on the clutch pedal, the sound is eliminated. Generally, the wear of front and rear bearing, loose or meshing gear noise of one shaft of transmission are common. If any gear is changed into gear, the noise of rear bearing of the second shaft is mostly. For severe loose or damaged bearings, repair or replacement should be carried out.

车辆低速行进变速箱异响

Abnormal noise of low-speed vehicle transmission

车辆低速行进时呈现，无节奏的“嘎啦、嘎啦、嘎啦”的噪音，而在车速增加时变为较杂乱的齿轮碰击声且挂档也响，或许是因为变速器内齿轮啮合不良引起的，如响声细微且较均匀，可继续磨合运用，如较严峻且不均匀时，应拆下查看，必要时应重新调整或予以替换。

The noise of "Gala, Gala and Gala" without rhythm appears when the vehicle is moving at low speed, but when the vehicle speed increases, it becomes more chaotic gear collision noise and gearshift noise. Perhaps it is caused by the poor engagement of gears in the transmission. If the noise is fine and uniform, it can continue to run in and use. If the noise is severe and uneven, it should be removed and checked. If necessary, it should be readjusted or given. Replace.

发动机怠速工作变速箱异响

Abnormal sound of engine idle gearbox

发动机怠速工作时，宣布“嘎啦、嘎啦、嘎啦”有节奏的响声，加大油门时响声更严峻，并感到变速器有轰动的现象，一般是因为齿面脱落或轮齿开裂掉牙所造成的，假如修理安装错位，齿轮偏移，也会宣布此响声，遇此情况，应解体查看，必要时予以替换新件。

When the engine idles, announce that "Gala, Gala, Gala" has a rhythmic sound. When the accelerator is increased, the noise is more severe, and the transmission is sensed to be sensational. Generally, it is caused by the tooth surface falling off or the tooth cracking. If the repair and installation is wrong, the center of the gear is offset, it will also announce the noise. In this case, it should be disintegrated and inspected, and if necessary, it should be replaced with a new one. Pieces.

变速箱无节奏异响

Non-rhythmic abnormal sound of gearbox

行进中某档呈现无节奏而沉闷的响声，用手握住变速杆时响声即消失，或许是因为该档齿轮拨叉凹槽磨损或变速杆下端工作面磨损所造成的，应拆检修正或替换。

During the course of travel, the noise of a gear appears to be rhythmic and dull. The noise disappears when the transmission rod is grasped by hand. Perhaps it is caused by the groove wear of the gear dialing fork or the working face wear of the lower end of the transmission rod. It should be disassembled, corrected or replaced.

变速箱换入某档异响

Change gearbox into a gear with abnormal noise

行进中换入某档后响声显着，即为该档齿轮磨损过甚而发响，若宣布周期性的响声，则为单个轮齿损坏。变速操作时宣布俄然碰击声，或许是轮齿开裂，应及时拆开变速器查看，进行修正或替换。

When a gear is changed into a gear, the noise is remarkable, that is, the gear is worn too much, and if the periodic noise is announced, the single gear is damaged. When the transmission is operated, it is announced that the sudden bump may be the cracking of the gear teeth. The transmission should be removed and checked in time for correction or replacement.

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