Bernardi Quote:
I'd like to put an auxiliary fuel pump on my 400 so that the battery doesn't get a severe workout after it sits a week or two. I believe it would be prudent to bypass the mechanical pump so that gasoline wouldn't be pumped into the crankcase if the mechanical pump poops out.
Question - Is that the preferred installation? What electric pump is being used? Approximate cost?
I have an electric auxiliary pump on my 55 Pat. I located it right below the driver's door on the frame by cutting the existing fuel line. I've had it there for 10 years. I bought it at NAPA. It's a pulse-type pump which means if it fails or is off, fuel will still be drawn through by the mechanical pump. I wired the on/off switch through the package tray fan switch on the dash. "High" is full on and "Low" is reduced speed which I never use.
Price? I forget, but it was inexpensive as those things go.
I wouldn't worry about pumping gas into the engine through a broken fuel pump. I've never inspected the fuel pump to see if there is a route where pushed through gas can get into the crankcase. I suppose it's possible, that's pretty rare from my experience.
For priming the carb after sitting or dealing with vapor lock, the electric pump can't be beat.
Craig
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