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GU Ute Ditching Main Tank

Posted: Tue Mar 09, 2010 7:42 pm
by noodle
Im looking at ditching my main tank on my GU Coil Cab. Is it possible to use the sub tank as the main. Is it just as simple as rewiring the pump and re-routing the fuel lines ?

Posted: Tue Mar 09, 2010 10:11 pm
by ludacris
Is there a particular reason why you want to ditch the main tank. Having to refuel every 280 km's is going to be a pita. But yes it is very possible to just use the sub tank only.

Cris

Posted: Tue Mar 09, 2010 10:36 pm
by noodle
Im going to shorten the chassis and use the sub tank for the time being until I have time to build a larger tank for it. How many litres does the sub tank hold ?

Posted: Wed Mar 10, 2010 6:29 am
by turbo gu
noodle wrote:Im going to shorten the chassis and use the sub tank for the time being until I have time to build a larger tank for it. How many litres does the sub tank hold ?
If it has the large sub its around 90/95 litres!! so the same as the main

Posted: Wed Mar 10, 2010 10:05 am
by bogged
noodle wrote:Im going to shorten the chassis and use the sub tank for the time being until I have time to build a larger tank for it. How many litres does the sub tank hold ?
standard main 95
standard sub 35 from memory

Posted: Wed Mar 10, 2010 10:28 am
by weeman
bogged wrote:
noodle wrote:Im going to shorten the chassis and use the sub tank for the time being until I have time to build a larger tank for it. How many litres does the sub tank hold ?
standard main 95
standard sub 35 from memory
Thats for a wagon a ute is differnt,

I believe they are 95 again... or slightly lower

Posted: Wed Mar 10, 2010 10:54 am
by noodle
It certinly looks as big as if not bigger than the main

Posted: Wed Mar 10, 2010 5:05 pm
by GUGQ
sub tank on the utes are 80 litre

Posted: Wed Mar 10, 2010 5:59 pm
by nastytroll
you will have to pipe the fuel return hose back into the fast fill line, and change the main fuel hose over to the sub tank fuel outlet. Should not take long.

Posted: Wed Mar 10, 2010 6:20 pm
by bogged
weeman wrote:
bogged wrote:
noodle wrote:Im going to shorten the chassis and use the sub tank for the time being until I have time to build a larger tank for it. How many litres does the sub tank hold ?
standard main 95
standard sub 35 from memory
Thats for a wagon a ute is differnt,

I believe they are 95 again... or slightly lower
sweet, so do they fit into wagons?

Posted: Wed Mar 10, 2010 6:26 pm
by toaddog
Without dragging out the manual sub and main both 90 ltrs

Posted: Wed Mar 10, 2010 6:29 pm
by chunks
toaddog wrote:Without dragging out the manual sub and main both 90 ltrs
Just another reason gu coil cabs rock :armsup:

Posted: Wed Mar 10, 2010 6:54 pm
by nayto
cruiser utes are both 90, patrols are 90 and 85.

Posted: Wed Mar 10, 2010 8:36 pm
by toaddog
chunks wrote:
toaddog wrote:Without dragging out the manual sub and main both 90 ltrs
Just another reason gu coil cabs rock :armsup:
Yes I am very happy with mine.

Posted: Thu Mar 11, 2010 6:12 pm
by nastytroll
bogged wrote:
weeman wrote:
bogged wrote:
noodle wrote:Im going to shorten the chassis and use the sub tank for the time being until I have time to build a larger tank for it. How many litres does the sub tank hold ?
standard main 95
standard sub 35 from memory
Thats for a wagon a ute is differnt,

I believe they are 95 again... or slightly lower
sweet, so do they fit into wagons?
If you cut a hole through the floor it should fit, prolly need to remove the back seat also. The tanks are high, prolly finish at the bottom of the drivers seat.

Posted: Thu Mar 11, 2010 7:24 pm
by big red
the senders are different with respect to number of pipes.

you may be able to swap them over but i'm not sure if the depths are the same?

Posted: Fri Mar 12, 2010 12:49 pm
by RoldIT
GU coil-cab tanks are 95ltr main and 80ltr sub.

Completely different "in tank" modules, you will need to custom build one ... but the rear in-tank module may to able to be modified to suit.

Posted: Fri Mar 12, 2010 4:14 pm
by nastytroll
big red wrote:the senders are different with respect to number of pipes.

you may be able to swap them over but i'm not sure if the depths are the same?
You can use the same sender for the pick up and cut into the fast fill hose (hose that run up to the top of the filler, breather about 12mm dia.) for the fuel return from the IP. This will keep the SUB fuel gauge working as normal also and lets the exess fuel return to tank,no mods to speak of.

Posted: Fri Mar 12, 2010 5:31 pm
by 20sic
the sub tank on a gu coilcab st is 85 litres.