tachometer gauge for boat

• 2023-03-03

The function of the engine tachometer gauge of the small boat is to let the driver know whether the working state of the engine is low or high. If the engine turns to the red line at high speed for a long time, reaching more than 7000 rpm, or even more than 8000 rpm, the engine is prone to high temperature, resulting in engine damage! Some people don't trust to start it again, and then hear the sound of the motor jamming. If you pay attention to the tachometer at this time, you can avoid such problems.

How to view the tachometer? First, always observe whether the engine can run smoothly at various speeds. For example, whether the engine speed is stable at idle speed, whether the speed is high or low, whether the engine speed climbs steadily and smoothly when accelerating, whether the engine speed drops smoothly when decelerating, whether the maximum engine speed is too low, and so on. These parameters can reflect the working state of the engine. For example, unstable idle speed indicates that the throttle is dirty or the ignition system is faulty, and low maximum speed indicates that the engine performance is degraded, which may be due to excessive fuel supply system or mechanical wear.

Secondly, you can check the shift of the transmission through the tachometer. For vehicles with manual gear, you can also switch gears according to the tachometer and select the appropriate shift time. The engine speed of automatic transmission models will decrease when the transmission is upshifted, and increase when the transmission is downshifted. We can judge whether the transmission works normally by checking the shift speed of the transmission. For example, if the shift speed is too high, the transmission may be in motion or manual mode, or the engine power may be insufficient; The shift speed is too low, which may be that the transmission is in economic mode, etc.

Finally, we can also use the tachometer to judge the car fault. For example, use the stall test to check the internal wear of the automatic transmission. The engine speed is very high and the vehicle speed is not high, and the fuel consumption is greatly increased. It may be that the lock-up clutch of the hydraulic torque converter cannot be locked or the lock-up speed is too high; In situ acceleration test, check the working state of the engine , check whether the clutch of the manual transmission boat slips , and so on . These are commonly used fault inspection methods by auto repairers.