My fuel pump too noisy?

[Daemione]

So I've got a '79 280zx, and the fuel pump is awful noisy. For the month I've had the car, I just figured it was a normal symptom of it not being an in-tank pump, but I read something that makes me think that something might be wrong. Is the pump supposed to prime loudly for a few seconds & then stop if I don't start the car? Mine just hums loudly indefinitely until I turn the key off, or changes to a higher pitch if I start the car.

 

Anyway, here are some videos - the first one is from outside the car, about 8 feet away. I toggle the key from 'on' to 'acc' once, it's not shutting off on it's own. As far as I know, it will buzz like that indefinitely as long as I leave the key in 'on'. Mic doesn't pick it up as loud as it seems in person - it's the humming at a pitch of F#.

 

Second video is from sitting in the drivers seat, windows up. It's covered up some from the engine/exhaust noise, but when I start the car pitch raises to a G#. Again, the rear trim is missing, so it's probably a little louder inside because of that.

 

 

So any thoughts? Is it supposed to be running that loudly that long before starting? Should I be worried about the pump dying on me in the near future? Or is it all just normal noise as a result of an external pump?

 

Thanks in advance!