Fuel Pump

When I came in today to work on the engine more the fuel pump had failed. After relieving some of the fuel pressure I tested it again and it still would not go.  When powered up it clicks once as though the rotor turns one bar and then stops. I tested it without connection to fuel lines and tapped it to make sure the brushes had good contact but it still would not run.

I obtained another one of the same specification and (Bosch model 0580464070). After reconnecting it and addressing a few fuel leaks I was ready to test injectors again.

 

Engine Running

Last week I determined that the engine had spark and crank and filled it with oil, and some fuel. It also seemed to have injector pulse as we thought we could hear and feel the injector pulsing. Unfortunately we had to delay actually firing it until this week.

Today I attempted ot fire the engie for the first time and it would not. I again confirmed spark and fuel pressure so the problem had to be the injector. I further confirmed this by adding a small amount of fuel to the inlet manifold and the engine fired a few times. It seems either the injector is bad or the controller is not driving it properly if at all.

Tomorrow I will test fire the injector in the bench tester and test another one as well.