Here is some reasons and solutions for diesel generator fail to start:
1. There is air in the fuel systems
Check if the fuel line connection is loose and remove air from the fuel system. First unscrew the exhaust screws on the injection pump and the fuel filter and pump the oil with the hand pump until there are no bubbles in the spilled fuel. After, tighten the exhaust screw. Pump oil again, when there is return oil in the tubing, then tighten the hand pump. Loosen the nut of the high pressure tubing at one end of the injector, pry high injection pump plunger spring seat, when there is no bubble in the fuel out of the nozzle, spin the nut, then pry a few more times, so that each cylinder injector is filled with fuel.
2. The fuel line is blocked. Check if the pipeline is unimpeded.
3. Fuel filter block. Clean filter or replace filter.
4. Oil pump does not supply oil or intermittent oil supply. Check that the inlet pipe is leaking, and that the filter screen on the inlet joint is blocked. If no oil is supplied after removal, the intake pipe and oil pump shall be inspected.
More reasons and solutions, please see at:
https://www.dieselgeneratortech.com/generator-sets/Why-My-Diesel-Generator-Set-Fail-to-Start.html
×