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Electric fuel pump with LPG

General Tech Talk

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Posts: 1060
Joined: Mon Feb 14, 2005 8:05 pm
Location: Kilsyth, Victoria

Electric fuel pump with LPG

Post by hokey »

G'day guys,
just trying to get the petrol working on my tb42 in my maverick and i noticed that the fuel pump isn't wired up. my question is should it turn off when i switch to LPG or stay on. just trying to work out how to wire it up.
Thanks,
Calvin
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Joined: Sat Apr 29, 2006 6:03 pm
Location: Victoria

Re: Electric fuel pump with LPG

Post by TEAMRPM »

hokey wrote:G'day guys,
just trying to get the petrol working on my tb42 in my maverick and i noticed that the fuel pump isn't wired up. my question is should it turn off when i switch to LPG or stay on. just trying to work out how to wire it up.
Thanks,
Calvin
obviously it sounds efi ? or is it custom ?

generally the fuel pump is kept running, just make sure you leave fuel in it other wise it will burn the pump out..

i have disconnected a few it doesnt really matter. some people say on / off..

just add a relay in the fuel pump wiring. activate the rlay off the petrol side of the lpg switch..

cheers :D
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Post by hokey »

Nah was just carby. It was wired up but i think it got caught in steering knucker and i cant find it. Once i start wiring i'll prob find it. Thanks
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Re: Electric fuel pump with LPG

Post by hokey »

TEAMRPM wrote:
just add a relay in the fuel pump wiring. activate the rlay off the petrol side of the lpg switch..

cheers :D
so if i wire it this way it will go off when the petrol switch is off right?
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Post by ludacris »

What happened to the mechanical pump on the motor.

LudaCris
Cris's 4 X 4 Accessories & Suspension 0404 736 325 Rock Sliders From $499
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Post by hokey »

I'm not sure? i bought it like this...
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Post by GRINCH »

it should be off when runnning on gas. but you should run it on fuel for a bit every week or so to keep everything lubricated, and clean
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Post by hokey »

yeh just wired it up to the switch then and its running well. i'll use petrol whenever i'm 4wd'ing prolly as the power is better.
Thanks for the help,
-Calvin
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Joined: Wed Apr 27, 2005 9:36 pm
Location: Gold Coast

Post by scout392 »

LPG is way better off road thjan a carb.
If you have a huge power differance there might be a problem with the LPG system.

ERic
78 scout 392ci V8 LPG, 727 TF, dana 20, dana 44 locked and loaded, 9" rear Diff. 10inch lift'n'so on
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Post by Loanrangie »

Wire it to only power up when on petrol, no point having it pumping away if not needed and also can be dangerous if a hose splits and fuel leaks.
Saddle up tonto, its the not so loanrangie! . 98 TDI DISCO lightly modded with more to come.
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Post by 1patrol »

scout392 wrote:LPG is way better off road thjan a carb.
If you have a huge power differance there might be a problem with the LPG system.

ERic
Exactly right i have lost count of how many people have asked me why i run mine on lpg all have said to use petrol while 4x4ing, but in my case gas is more reliable than fuel cos its a gas not a liquid so there is no pickup :)
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Post by scout392 »

1patrol wrote:
scout392 wrote:LPG is way better off road thjan a carb.
If you have a huge power differance there might be a problem with the LPG system.

ERic
Exactly right i have lost count of how many people have asked me why i run mine on lpg all have said to use petrol while 4x4ing, but in my case gas is more reliable than fuel cos its a gas not a liquid so there is no pickup :)
The only time petrol may be better is if you need every bit of HP say in a tractor pull comp
:twisted:
Eric
78 scout 392ci V8 LPG, 727 TF, dana 20, dana 44 locked and loaded, 9" rear Diff. 10inch lift'n'so on
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