How to deal with damaged car differential gear?

Update:13-01-2022
Summary:

The common faults of the differential are gear damage, […]

The common faults of the differential are gear damage, excessive gear meshing clearance, lack of lubricating oil, damage to the differential bearing, etc. The emergency measures are as follows:

1. During the driving process, the rear axle suddenly made a "clang, clang" sound, and the sound became more and more severe, and the off-gear sliding sound disappeared. This may be the collapse of the gear teeth or the damage of the differential connecting bolt. You should stop and open the rear cover. Check and troubleshoot before driving.

2. If there is a rhythmic impact sound during driving, and there is a "squeak, squeak" sound when the vehicle speed is slowed down or changed sharply, it is generally because the backlash is too large, and it should be driven to the repair shop at low speed for adjustment and maintenance, otherwise The reducer will be severely damaged.

3. If there is a continuous screaming sound during driving, it is likely that the backlash is too small or there is a lack of oil. You can touch the differential with your hand. If it is hot, it is a lack of oil. Unscrew the refueling bolt on the rear cover of the differential, check the oil level and add gear oil (the oil level should meet the manufacturer's requirements); if there is no gear oil on the road, it can be temporarily replaced by ordinary lubricating oil. After emergency treatment, drive slowly, drain the substitute lubricating oil when the oil can be changed, clean the differential and add the same level of gear oil. If it does not feel very hot, the backlash is too small, and it should be driven to the repair shop at low speed for adjustment and maintenance.

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