After the chassis was scratched, the gearbox leaked oil!

As shown in the figure below, there are no protective plates at the bottom of the engine and gearbox, only small plastic protective plates on both sides. The front part of the plastic protective plate on the right side has been scraped off, and there is a lot of oil stains on the bottom of the gearbox and the subframe on this side.

There is a lot of oil stains on this position of the subframe. The master said it is gearbox oil. Where did these gearbox oils come from?

The master said that these gearbox oils are all flowing out from the bottom of the gearbox, as shown by the red arrow in the picture below. This position at the bottom of the gearbox has been scratched and bumped, and due to the deep scratches and aluminum alloy material, cracks and oil leakage have appeared.

After a collision with the chassis, the car owner discovered oil leakage at the bottom of the gearbox. They quickly called the technician's rescue hotline and towed the car back. The oil seeping from the bottom was blown by the wind to the rear of the gearbox and the subframe. The yellow arrow indicates the oil drain screw of the gearbox. The technician said they have encountered a situation where this screw leaked oil after being touched before.

Looking at the rear bracket of the gearbox again, as shown in the yellow area below, there are scratches on the bottom of the bracket.

The master said that the scratch was not really serious, but the consequences were more serious due to the special location of the scratch.

I asked the master, how to repair scratches like this? The master said that the car has car damage insurance, and the repair is to remove the gearbox and replace the aluminum alloy shell.

For such scratches, the master said that if there were protective plates at the bottom of the engine and gearbox that could cushion the scratches to a certain extent, the gearbox would not have such a serious situation, and a repair would cost several thousand yuan. Presumably, car owners will regret not installing protective panels when they see such a situation, but fortunately there is a safety net.

The master said that most American cars are like this, with no protective panels on the chassis, and in most cases there won't be any scratches, except for a few rare cases where scratches may occur. As shown in the figure below, the middle part of the chassis has no protective plate or chassis armor, and its condition is very good.

Look at the bottom of the fuel tank, there is a heat insulation tile between it and the exhaust pipe, and this position is also deformed.

The master said that the deformation of the insulation tile should also be caused by this scratch, and there is no problem elsewhere. The deformation of insulation tiles is easy to solve and can be easily bent over by hand.

Although the chassis of this Chevrolet does not have protective plates or chassis armor, there is basically no rusting on the chassis, and there are no rusted areas on the rear of the chassis. The drainage hole at the bottom of the exhaust muffler, which is prone to rusting, is also not rusted.

Finally, the master said that if the car can be equipped with a protective plate, it is best to install one. You can buy a high-quality alloy protective plate yourself, which is not expensive and can be of great use in critical situations.