I recently had a Marvel 4-5 carb rebuilt for an O-360 and it runs fantastic... above idle. If I'm below about 1300 RPM the engine will surge up and down by about 50-70 rpm. Does anyone know what would cause this?
At any normal flight power setting the engine runs great, no issues. I have a wood prop, which I know is known for making idling more difficult, but I feel above 850ish rpm it should have enough momentum to idle smoothly.
Any help is appreciated.
At any normal flight power setting the engine runs great, no issues. I have a wood prop, which I know is known for making idling more difficult, but I feel above 850ish rpm it should have enough momentum to idle smoothly.
Any help is appreciated.