Hello,

I want to know when my main tank is failing to feed the swirl pot. I do not have provision for, not can easily add any form of fuel level sender. I have a Facet 7-10psi cube pump feeding the swirl pot which houses a Yamaha injection pump.

If I put an adjustable fuel pressure switch (2-7psi) in the yellow-arrowed feed below, will I be able to get the switch to activate if I run low on gas in the main tank?

Fuelsing around

My concern is that, because of the free-flowing overflow/return to the main tank, it might not register (enough) pressure.

Obviously, my aim is to not get to this point but I'd like a warning system nonetheless.

Ta,

Tim

I don't think that'll work. As there's no restriction after the lift pump and fuel is free to flow back to the tank then there's no/little presure in the line... I think...

quote:

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Originally posted by adithorp
I don't think that'll work. As there's no restriction after the lift pump and fuel is free to flow back to the tank then there's no/little presure in the line... I think...

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Put a restriction in the return line?

Can’t you put a float switch in the side of the tank so it puts a light on the dash
G

Whats the weight of the fluid in the swirl pot? If you have a non return valve prior to the pot and then the pressure switch between the non return and the pot that may work (i'm guessing). eg



Pump -> non return valve -> pressure switch -> Pot full of fuel