ford ranger tachometer not working

• 2022-04-25

The main engine speed measurement system mainly refers to the measurement of the speed of the main engine and the speed of the supercharger. The fault of the general speed measuring system is reflected in the immobility or speed of the tachometer of the main engine and the tachometer of the supercharger.

If the tachometer pointer does not move, first check whether the input signal of the tachometer is in place. If there is no input signal or the signal value does not meet the requirements, the speed measuring device shall be checked (such as simulation test on the speed measuring device).

In addition, check whether the sensor works normally and whether the installation clearance of the sensor meets the requirements. If the installation clearance is incorrect, it shall be adjusted until it meets the requirements. At the same time, check the circuit of the whole speed measurement system to see if there are loose wiring and wrong wiring.

The diesel engine cannot be stopped during operation; In fact, the fuel injection pump cannot be stopped during operation. It is impossible to stop. First, the control signal is not in place. That is, when the control handle is in the parking position, it also sends a control signal, and then the fuel injection pump continues to supply oil. In this way, of course, I won't stop. The control signal shall be adjusted to make it meet the parking requirements. The stop signal is in place, but the connection of the oil regulating rod system is not properly connected, resulting in failure to stop. For example, when the output shaft of the governor has reached the zero position or the parking cylinder has been activated, the rack grid number of the fuel injection pump is not within the starting fuel supply grid number of the fuel injection pump. Therefore, when it is necessary to stop, the fuel injection pump is still in the fuel supply state, so it cannot be stopped. The rod system shall be adjusted so that when it stops, the rack number of the fuel injection pump shall be less than the grid number of the pump starting fuel injection. In short, the connection principle of the oil regulating rod system is: "the throttle should be increased and reduced".

The reversing of general ford ranger tachometer involves the reversing of starting air distributor and energy cam. For illustration, when reversing is needed during normal operation, the following situations may do in the reversing of starting air distributor, for slice distributor; The distributor is operated by the air cylinder and rotates at a certain angle to reverse the distributor. The plunger distributor is operated by the air cylinder to change the matching position of the forward/ rear starting cam to realize the reversing of the distributor. Thus, when reversing, if the reversing cylinder of the distributor and the forward or rear signal air aren't in place, the reversing action of the distributor can not berealized.However, the diesel machine can not complete the change direction easily, If the air distributor can change direction rightly and the energy cam can not change direction rightly. Thus, for the main machine that only needs energy reversing, the reversing action of the diesel machine can be completed only when the distributor and energy cam can be reversed easily.