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List of contents of this article:

• 1 , How to run during the running-in period after the overhaul of the car engine
• 2, What is cold grinding in engine run-in??
• 3, engine cold run-in
• 4、 What are cold run-in and hot run-in of generator sets?

How to run during the run-in period after the overhaul of the car engine

1. The engine speed should not be too high, and it is best not to exceed 3000 rpm. The running-in period should not be carried out at a speed of less than 60 kilometers for a long time, and the speed must be gradually increased. After running at a speed of 80 kilometers, the sudden increase in speed will make the new car uncomfortable. Therefore, it is necessary to gradually increase the maximum speed of the running-in period.

2. Preheat first: When starting cold, it is best to wait for the water temperature to warm up to 40° and start from above. When starting, you should gently step on the clutch and accelerator pedal, and choose a good road to drive. Don't blow the accelerator when the car is cold. Speed needs to be controlled: During the running-in period, the driving speed must be controlled, not too high, and it is best to control 50~80km/h.

3. Step on the clutch and throttle when starting, choose a good road to drive, and don't step on the accelerator when the car is cold.

4. The engine speed should not be too high, and it is better not to exceed 3000 rpm. The running-in period should not be carried out below 60 kilometers per hour for a long time, and the speed must be gradually increased.

What is cold grinding in engine run-in??

Engine cold grinding refers to the installation of the engine on a special machine tool and the motor to drive the running-in. Because there is no high-temperature heating caused by fuel combustion when the engine is working normally, such a run-in is called cold run-in. On the other hand, thermal run-in usually refers to the run-in when the engine is installed on the car and the fuel is ignited and burned.

In theory, the so-called cold run-in of automobile engines is to install the engine on a special machine tool and use a motor to drive the engine for run-in. Because there is no high-temperature heating caused by fuel combustion when the engine is working normally, this kind of running is called cold running.

Engine cold grinding refers to the grinding of the engine installed on a special machine tool driven by a motor. Because there is no fuel combustion to produce high temperature, it is called cold grinding;Thermal run-in refers to the running-in in an appropriate way when the engine is installed in the car.

The so-called cold running-in refers to the installation of the engine on a special machine tool and driving the running-in with a motor. Because there is no fuel combustion to produce high temperature, it is called cold grinding; on the contrary, hot running-in is to install the engine in the car and run in an appropriate way.

Thermal run-in refers to the installation of the diesel generator, and after detailed inspection, the machine is started. Through no-load and load experiments, the engine is further inspected and adjusted to make it have good power and economy.

Engine cold run-in

1. The so-called cold run-in of the engine, theoretically, is to install the engine on a special machine tool and use a motor to drive the run-in.Because there is no high-temperature heating caused by fuel combustion when the engine is working normally, this kind of running is called cold running. On the contrary, thermal run-in usually refers to the installation of the engine in the car and the run-in by ignition and burning fuel.

2. The function of engine cold run-in is to solve or eliminate the inconvenience caused by the owner's running-in period after buying a new car.

3. The so-called cold run-in of automobile engines, theoretically speaking, refers to the installation of the engine on a special machine tool and the motor to drive the motion run-in. Because there is no high-temperature heating when the engine is working normally, fuel combustion produces high temperature heating, so such a running-in is called cold grinding.

What are cold run-in and hot run-in of generator sets?

1. ColdRun-in refers to the diesel engine being driven by an electric motor or other power to drive the crankshaft on the test bench to achieve the purpose of running in the crankshaft connecting rod mechanism, gas distribution mechanism and other dynamic matching parts.

2. Cold running-in refers to the diesel unit being driven by an electric motor or other power on the test bench to drive the crankshaft to achieve the purpose of running in the crankshaft connecting rod mechanism, gas distribution mechanism and other dynamic matching parts.

3. When the engine is working, it is divided into cold car and hot car. Due to the hot expansion and cold contraction of spare parts, grinding can also be divided into cold grinding and hot grinding. When running in, we only need the engine to reach more than 80 degrees, that is, after the working temperature, we can drive normally, avoiding some extreme working conditions such as rapid acceleration and rapid deceleration.