diesel engine tachometer universal

• 2022-04-25

The red area of the tachometer on the automobile instrument panel is the warning area, and the engine speed shall not reach the red warning area, that is to warn the driver not to let the engine exceed its working range. The measuring range of the automobile tachometer can reflect the speed range of the engine. Usually, the indicated value of the tachometer is multiplied by 1000 or 100 to obtain the engine speed per minute. The measurement unit symbol is R / min and the unit name is rpm. It is also very simple to check the working state and speed of the engine. If the pointer points to 6, that is, the current engine speed is 6000 rpm. If the car is often pulled to the speed red zone, it will hurt the car. In serious cases, it will lead to cylinder pulling and cylinder explosion, and even directly cause the engine to be scrapped; Often around 3000 turns will be very economical and fuel-efficient, which can prolong the service life of the car. Tip: usually the speed in the red zone is above 6000 rpm. Too high speed will affect the functions of vehicle heat dissipation and damage some parts. Please don't try.

The sensor of diesel locomotive mainly has several functions: first, judge the top dead center of the engine and determine the timing of fuel injection; 2、 The output signal will display the engine speed. The sensor generally generates a pulse signal every time it scans a tooth. The specific number of teeth for one revolution is set in the ECU, so it will not be affected. However, pay attention to ensure that the output signal of the sensor is consistent with the original sensor signal. Otherwise, in addition to inaccurate speed, the operation of the fuel injection system may be affected. Ask the repairman more and install it after confirmation.

Sensor mounted on flywheel housing of diesel engine Electromagnetic non-contact The same thread is not universal. It has nothing to do with the number of flywheel teeth. Generally, the teeth on the flywheel are used to start the diesel engine. And sensors on other engines The thread is the same. It can be used. The number of revolutions can be detected and adjusted. The tachometer can be matched with the sensor.