The exhaust brake is often used to hardly damage the cylinder mattress. This should be a problem that many card friends will encounter. Some old drivers have also been consulted. Some drivers think that the exhaust brake should be designed in this way, so appreciation is no problem. Yes, the pressure generated by the engine working stroke is much higher than the negative pressure generated by the exhaust brake.
Some older drivers believe that the exhaust brake is blocking the stable discharge of exhaust gas, and the high pressure generated is difficult to “break” the exhaust manifold pad. In the specific use process, such a thing does happen. So why is this happening?
It is still important because many truckers are “acute”. If the vehicle is driven to the top of the hill, the engine temperature is low and the temperature of the exhaust gas is very low, resulting in very low temperature transmission to the exhaust pipe and other components.
Acute card enthusiasts used exhaust brakes just after they started downhill, but because of the relatively low temperature, the exhaust manifold pads were difficult to burn. This is what we usually call the exhaust manifold pads. Damaged by exhaust brake. Perhaps improper handling is by no means the cause of all exhaust manifold pad damage, but only one of them.
Accurate posture can solve the problem
When many people encounter such problems, they often complain that the quality of the engine and radiator is good, but they do not reflect on whether their operations are accurate. This problem can be avoided if you use accurate operation methods when going downhill.
When going downhill, the accurate method should be to use the brakes in high gear first to make the engine run stably (never spray oil or only a small amount of oil), and take away a lot of heat generated by high load operation on the uphill slope. Exhaust braking is then used again.
When the exhaust brake is turned on when the engine speed is relatively low, the instantaneous pressure is very small, which is one of the reasons for the exhaust manifold pads to be damaged. So we can turn on the exhaust brake switch (within 1500 revolutions) when the engine speed is relatively high, so that it gradually rises, so that the pressure inside the exhaust manifold is gradually increased, which will damage the exhaust manifold pad. It will never be too small.
Good driving habits can accurately improve operational efficiency. I still want to remind everyone here that when driving normally, you still have to pay attention to the driving style. If you persist for a while, you will find that your “old buddy” may not have the love problem as before.
Post time: Apr-16-2021