[jhein]

Originally Posted by Jay S

I do not do safety switches on the mechanical and electric pusher combinations, just the full electrics. With the engine shut off an electric 7 psi pump usually won’t pump much fuel thru most mechanical pumps. The full electrics have full flow to the carb all the time.

I usually start the car as soon as the electric pusher pump is under a load after the fuel line fills up to the mechanical pump. I don’t wait for the electric to fully fill the carb, once the mechanical pump has fuel to it, the engine does not have to crank over very much to start (about 3 seconds)

So with the oil pressure safety switch, I assume cranking will give you enough oil pressure to activate the pump so it will start right up.

If you don't have any kind of shut off system and you have the ignition on, the pump turns on, then what? The pump just runs and floods the carb?