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+--- Thread: Can fuel pumps be run dry? (/showthread.php?tid=7481)
Can fuel pumps be run dry? - jimxms - 06-04-2019
I want to test a fuel pump I've purchased before installing it. However I know from experiences in other trades that submersible pumps generally don't like being run dry.
On the other hand, I'd imagine that fuel pumps must be able to tolerate it a bit just in case the fuel tank is run dry (unless they have auto cut-off?)?
Advice appreciated.
Can fuel pumps be run dry? - Phil01 - 06-04-2019
they can be run up for a second or two mate just to test but not for a continuous time as overheating will occur and no lube to cool the bearings if it is in a dry state.
Can fuel pumps be run dry? - jimxms - 06-04-2019
Cool. I'm assuming the Walbro will arrive with bare wires, so I'll just hook it up to a 12v PSU for a couple of seconds to make sure it fires up.
I'm guessing though that if I installed a dead fuel pump, the car just wouldn't start - rather than doing any actual damage?
Can fuel pumps be run dry? - Phil01 - 06-04-2019
should be ok just to flash it across a power supply to see if it spins up.
Can fuel pumps be run dry? - Sparkystav - 06-04-2019
Yeah its arrive with pins, and a connector to bare wires