Collecting some common problems and solutions from card friends, one of them wrote to me and talked about the problems he had encountered. Although it is not a difficult and miscellaneous disease, it is often ignored by driver friends, that is, “if you often use exhaust brake, will it damage manifold pad”.
Often use exhaust brake, which is easy to damage the cylinder mattress?
This should be a problem encountered by many card friends. The student sister also specially consulted some old drivers. Some drivers think that since the exhaust brake is so designed, it must be no problem, because the pressure generated by the working stroke of the engine is much higher than the negative pressure generated by brake.
Some old drivers believe that the exhaust brake blocks the normal discharge of exhaust gas, and the high pressure generated is easy to “wash out” the exhaust manifold pad. Such things do happen in the actual use process.
Improper operation is the reason. Acute sub card users are easy to appear
So why is there such a problem? It is mainly because many card users are “acute”. When the vehicle drives to the top of the slope, the engine temperature is relatively high, and the temperature of gas is also very high, resulting in the high temperature transmitted to pipe and other components.
So why is there such a problem? It is mainly because many card users are “acute”. When the vehicle drives to the top of the slope, the engine temperature is relatively high, and the temperature of gas is also very high, resulting in the high temperature transmitted to pipe and other components.
When going downhill, the correct method should be to first shift to low gear and use the brake to make the engine run normally (no oil injection or only a small amount of oil at this time),exhaust take away a large amount of heat generated by high load operation on the uphill slope, and then use braking.
When the engine speed is high, open the exhaust brake, and the instantaneous pressure is too large, which is one of the reasons for the damage of manifold pad.
Therefore, we can turn on the exhaust brake switch when the engine speed is low (within 1500 rpm) and let it rise slowly, so that the pressure in manifold increases gradually and the damage to the exhaust manifold pad will not be too great.
At the beginning of going downhill, the acute card friends use the exhaust brake, but at this time, due to the high temperature, the exhaust manifold pad is easy to be burned, which is what we usually call the exhaust manifold pad is damaged by the exhaust brake. Of course, improper operation is not the cause of damage to all exhaust manifold gaskets, but only one of them.
So why is there such a problem? It is mainly because many card users are “acute”. When the vehicle drives to the top of the slope, the engine temperature is relatively high, and the temperature of gas is also very high, resulting in the high temperature transmitted to pipe and other components.
Correct posture can solve the problem of first engaging and resisting the brake
When many people encounter this problem, they always complain about the poor quality of the engine and radiator, but they don’t reflect on whether their operation is correct. If the correct operation mode is adopted when going downhill, such problems can be avoided.
Good driving habits can effectively improve operation efficiency. If you don’t pay attention to the driving method, you may have problems with the vehicle. When you drive at ordinary times, you should pay more attention to the driving mode and stick to it for a period of time. You will find that your “old man” may not have problems as much as before.
Thank you for sharing your experience with us. Ask you again if there are any unexpected problems caused by driving habits. You are welcome to leave a message to share or add Xuejie wechat communication.
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