825 bobcat added electric fuel pump

[cash]

Replaced my old electric fuel pump with a Holly Blue but after much trial and tribulation realized that the pump has to be below the source, or it will build up air and stall. There is not a safe place on the 825 to locate the pump lower than the tank. Question is there an electric pump that will pull 12" and push 12"

 

[sledesigns]

I've went the same way then came back & hit the easy button. Had a Mallory race pump on because it was handy & looked too cool, needed a rebuild after a few months. Grab an el-cheapo little pump at the local auto parts store. I have one mounted at mid tank, pulls up a ways, no problems. The normal cheapies work differently, not rotory like race pumps to lose suction. Solenoid, clacking valve or something. I'll have to dissect one when they die. It'll work though. Good luck.

 

[Tazza]

I've went the same way then came back & hit the easy button. Had a Mallory race pump on because it was handy & looked too cool, needed a rebuild after a few months. Grab an el-cheapo little pump at the local auto parts store. I have one mounted at mid tank, pulls up a ways, no problems. The normal cheapies work differently, not rotory like race pumps to lose suction. Solenoid, clacking valve or something. I'll have to dissect one when they die. It'll work though. Good luck.

If there are no leaks it shouldn't pull air after you get prime.... There is no reason for it to draw in air if the line is air-free. My cheap and nasty fuel pump i use as a transfer pump works up to a few feet above the fuel level I'm drawing from, I'd think your pump may be damaged or really bad quality?
The only other option is put a hand primer in line with it, use it to get prime and then let the electric one take over from there.

 

[skidsteer.ca]

If there are no leaks it shouldn't pull air after you get prime.... There is no reason for it to draw in air if the line is air-free. My cheap and nasty fuel pump i use as a transfer pump works up to a few feet above the fuel level I'm drawing from, I'd think your pump may be damaged or really bad quality?
The only other option is put a hand primer in line with it, use it to get prime and then let the electric one take over from there.

Yes, put a boat primer bulb above the blue pump, one you prime the fuel to it you willbe all set. You might want to use the regulator that came with them to as they produce about 20 psi.
As for the small elecrics the motor is pulsing a diaphram and a series of one way check valves force the fuel forward. They are not known for long life, though the flow would be a better match for a 40 to 50 hp diesel then the blue Holley with 110 gph.
Ken