I recently changed the fuel pump on my O320-D3G (installed in a RV6). After completing a check flight and attempting to shut down the engine with the mixture, the engine ran on a bit roughly at about 500 rpm. Advancing the throttle slowly with the mixture in ICO finally allowed the engine to stop.
I am trying to understand how a change of fuel pump would cause this problem. I am currently investigating the primer circuit as a source of fuel, but failing that I will look to the carburetor.
Has anyone had such an experience?
In the event that the troubleshooting leads to the carburetor, does anyone know where I can find an overhaul manual for a Marvel-Schebler MA-4SPA carburetor?
Lee Fasken
RV6
Ottawa Ontario
I am trying to understand how a change of fuel pump would cause this problem. I am currently investigating the primer circuit as a source of fuel, but failing that I will look to the carburetor.
Has anyone had such an experience?
In the event that the troubleshooting leads to the carburetor, does anyone know where I can find an overhaul manual for a Marvel-Schebler MA-4SPA carburetor?
Lee Fasken
RV6
Ottawa Ontario