G'day.
I have not had a problem yet with my in tank fuel pump
I am planning a lot of big desert trips next year.
My wife hasn't seen alot of them and would like too.
Now, I understand that you can put an inline pump in
as well as the in tank unit. Thats fine but can I put an
isolating electrical switch on the inline pump and have it in reserve ?
Will the in tank pump feed the fuel thru the turned off non pumping inline unit ?
If the in tank pump fails and I switch over to the inline,
will it pull fuel thru the dead pump ?
I could just have two pumps in tandem but if one fails
you wouldn't know about it if the other pump works on
its own.
Reason that I am thinking along these lines is because
it would be alot of trouble to remove the false floor and
draw system, to replace the intank pump out the back
of Giles or somewhere.
The system I am thinking about would provide a backup and peace of mind in case of a failure. My wife is not
in perfect health so I would like to have reliable systems in place.
Most of the time we will be one vehicle out unless we
are joined by some of you blokes along some of the routes ?
Tar.
Cheers.
PS: this fuel pump system will be attached to a long range tank.
The MOD Father
There was thread on just this the other day,,,
in Tech??
someone said the inline electric WOULD pull through the in-tank pump---
did I add it to common threads???
edit;
yuk yuk
try here, post 20,,,
http://www.aulro.com/afvb/showthread.php't=44523&page=2
Last edited by Pedro_The_Swift; 4th November 2007 at 11:24 AM.
"How long since you've visited The Good Oil?"
'93 V8 Rossi
'97 to '07. sold.
'01 V8 D2
'06 to 10. written off.
'03 4.6 V8 HSE D2a with Tornado ECM
'10 to '21
'16.5 RRS SDV8
'21 to Infinity and Beyond!
1988 Isuzu Bus. V10 15L NA Diesel
Home is where you park it..
[IMG][/IMG]
Super Moderator
Is the in-tank fuel pump not managed by the ECU?
You won't find me on: faceplant; Scipe; Infragam; LumpedIn; ShapCnat or Twitting. I'm just not that interesting.
Master
I believe if you fitted a Repco/Facet type pump out side your tank this will pull through the existing pump, I have done a similar method and it works fine, excellent back up, just watch your pressure you may need to fit a pressure regulator.
OldBushie
Yeeaaaahhhh, and but you would still use the same wiringOriginally Posted by Lotz-A-Landies
I wouldn't pump through a pump, its madness, just buy a spare intank, disco's already have a hole in the floor, so swapping is eassy as, RR's didn't, but I judt did one the other day, sut square hole.....cut bigger square out of wreck's floors..... goo and screw and you have a nice little lid
OldBushie
They come with a reg. from factory
A facet/repco pump?? are you talking the square little ticker pumps? if so they are low pressure pumps and not suitable for EFI
The MOD Father
but he doesnt want to remove the rear storage bins---
"How long since you've visited The Good Oil?"
'93 V8 Rossi
'97 to '07. sold.
'01 V8 D2
'06 to 10. written off.
'03 4.6 V8 HSE D2a with Tornado ECM
'10 to '21
'16.5 RRS SDV8
'21 to Infinity and Beyond!
1988 Isuzu Bus. V10 15L NA Diesel
Home is where you park it..
[IMG]
OldBushie
Ahhh, yes, but if he's that worried about failures, it'd be best to buy japanese or stay at homebut he doesnt want to remove the rear storage bins---
If its that much of a concern, best to remove the intank pump, replace with some hose and fit the external pump and carry a spare or 2 in parallel
Either way they'll have to come out at some stage after a pump failure
TopicToaster
I know what you mean about having a fully loaded Disco complete with cargo drawers have a fuel pump failure
At least mine happened at work with all the right tools at hand (no spare pump though).
RoverLord
I would not run the pumps in series like your talking about doing Id carry a spare external pump (assuming that for some reason you dont want to have to pull the gear out to get to the intank pump and replace it with an aftermarket intank pump) and the pumbing to fit it up.
Mock Fit everything and make sure it all fits, dummy the wiring across and fit blanking plugs where needed, Personally I would cut and reroute the original wiring so that it went to where the new pump was going to live and plug in then run a cable much like an extention cord from that location back to the current intank pump. This allows for easy and convenient isolation of the intank pump so it doesnt go kablooie and prevents leaving open live electrical plugs hanging around.
In theory theres now no new joins in the fuel lines so the integrity is retained the electrics are set up ready to go and you have a ready to mount pump in a box. you dont have to worry too much about a regulator as the one on the back of the fuel rail should take care of it unless you do something like install a high flow high pressure drag car type pump but given the cost of those I dont think that likely.
IMHO It is better to carry the right kind of intank pump and fit that up rather than running the pumps in series
Dave
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