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boat fuel gauge works intermittently
The marine boat fuel gauge works intermittently. The reason for the high and low is that the fuel level sensor is faulty. The fuel gauge consists of a fuel level indicator with a voltage regulator and a fuel level height sensor. The function of the low fuel level alarm device is to give an alarm when the fuel in the fuel tank is less than a specified value, so as to attract the attention of the driver. The fuel gauge is mainly composed of two parts: the sender that measures the fuel level in the fuel tank and the fuel gauge that displays the measurement results to the driver. The fuel gauge is also a very simple device. Precautions for using the fuel gauge are as follows :
1.Do not refuel when the alarm light is on, because the gasoline pump is in the boat oil tank and relies on gasoline for heat dissipation and lubrication . Too little oil will be detrimental to the normal operation of the oil pump and reduce its service life;
2.It is not recommended to top up when refuelling, because gasoline expands when heated and evaporates into gasoline vapor at high temperature in summer, so there needs to be space to contain it. If it is overfilled and there is no space , gasoline vapor or even liquid gasoline will enter the carbon canister for storage, and the carbon canister will escape into the air when it is full, which not only wastes but also pollutes the environment;
3.Indication deviation. If the battery or gasoline filter element is replaced daily, or the boat is started again after overnight parking , it may be noticed that the pointer of the fuel gauge is lower than the previously displayed position , which is considered as a fault. In fact, it is a normal phenomenon, because when the oil pump is working, there is a negative pressure in the oil tank, the corresponding oil tank volume decreases , the oil level is higher, and in addition, the temperature has a thermal expansion effect on the gasoline, so the natural display is higher . When the temperature drops and the oil tank is opened, the pressure is released, and the oil level drops , so the display deviation is a normal phenomenon . However , the deviation will not exceed one pointer width.
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