Jim Rosenthal
Supporter
We are having trouble with the pumps in 1149, which lose prime as soon as you shut them off, and then won't reprime. The pumps run in parallel, drawing through a Spitfire selector valve from the two tanks. The pump outputs are then merged to go into a single fuel line, to the filter/regulator unit, which has a glass bowl, and from there to the Weber carbs. When you shut the pumps down, you can see the fuel filter bowl drain immediately.
I don't recall this happening before. Does anyone know enough about 240A pumps, which haven't been made since I think the 70s, to know if they have an anti-drainback feature in them? this is maddening.
I don't recall this happening before. Does anyone know enough about 240A pumps, which haven't been made since I think the 70s, to know if they have an anti-drainback feature in them? this is maddening.