What will bad Impact if Air in Fuel of Generator?

Air in Fuel

Fuel is flammable. Keep all cigarettes, flames, pilot lights, arcing equipment and switches out to the work area and areas sharing ventilation to reduce the possibility of severe personal injury or death when working on the fuel system.

Do not vent the fuel system on a hot engine this can cause to spill onto a hot exhaust manifold which can cause a fire.

How to bubble test of diesel generator fuel?

The low pressure fuel system for diesel generator installation in the vehicle consists of the fuel tank lines between the tank and the engine transfer pump and lines and fuel filter and lines. Air or bubbles at the injection pump can cause the engine not to operate or erratic engine operation and subsequent malfunction of the injection pump. Air can be introduced by leaks in the fuel system prior to transfer pump since the fuel in the lines in under a vacuum and can draw air into the system. Bubbles can result from any number of restrictions in the system

1. Plugged fuel filter

2. Crimped fuel line

3. Stopped up tank module

4. Inoperative transfer pump.

If sufficient fuel reaches the injection pump from the low pressure system then solutions to engine operation problems are elsewhere. The following steps will aid in evaluating low pressure fuel system performance

For cold start or performance problems perform following steps

1. Leave vehicle outside in cold environment for at least 12 hours

2. Perform outlined test

3. If the system fails to meet test criteria replace the fuel lift pump.

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