marine rpm gauge not working

• 2023-02-10

The master of the marine's tachometer rpm gauge not working. If it doesn't move at all, the socket at the back of the dashboard is loose. Check it first. If it is not a socket problem, the speedboat engine tachometer does not display data because the tachometer is damaged. Replace it with a new instrument to check it. If it is indeed damaged, it is recommended to replace it directly. There may also be a problem with the speed sensor, which needs to be checked.

The control system of marine high-power diesel engine produces various faults. Not only the phenomena of the faults are different, but also the causes of the faults are complex. Therefore, only those who are quite familiar with the control system, have rich practical experience, and have a good understanding of the control object diesel engine can quickly "diagnose the fault" and eliminate it.

Therefore, for each fault of the control system, it is necessary to carefully observe the fault phenomenon and carefully analyze it before making a correct judgment; Therefore, corresponding measures shall be taken to finally eliminate the fault and restore the control system to normal working state. When the marine diesel engine is started, it has reached the firing speed, but it cannot run on fire.

For compression-ignition internal combustion engines, in the three starting elements: temperature, fuel and air, the starting speed, in fact, simply represents the temperature in the cylinder. If the ignition speed has been reached when the diesel engine is started, it means that the ignition point temperature of the fuel has been reached in the cylinder. At this time, as long as there is good atomized oil injected, it can ignite. If there is no fire, it is caused by the following main reasons: Although the ignition point temperature has been reached in the cylinder, there is no fuel injection; Of course, the main engine will not fire; Generally, there is no problem with cylinder air supply. And there are many factors that cause no fuel injection. For example, the fuel injection pump rack has reached a large position for refueling, but the main fuel pipe is not open. Of course, it is impossible to inject fuel. If the fuel has been injected into the cylinder, but the atomization is poor (such as bad fuel head), the 357 will not ignite even if the amount injected is more. This is caused by too little contact between oil and oxygen.