80 seris fuel tanks size + use

Hi TurboCruise,
The sub tank gauge shows below empty after having done only say 250 on this tank, but i am just thinking now if sub tank only 50lt (mine not turbo unfortunatly) and its pumping its return fuel into main then perhaps gauge is correct??? i will look to fix the return fuel issue 1st then see how gauge works!, cant recall how much fuel sub tank took on the 1 trip we did as i did not fill it! i have an old 60 seris and its 2nd tank is 100lt so this might be putting me off trake a bit as i thought the 80 seris would have been as least 75 lt!

Steve
The system is dessigned to fill the main when selected to main, but fill both when selected to aux...dont ask why, i dont know, but it is the case.
Andrew
ps you wouldnt run out of aux if it was empty and pumping back to main because main will overflow back to aux if there is enough diesel in it., otherise u will run out.....common fault is crud in the solenoid, take off the hoses, and blow through the solenoid to dislodge the rubbish...it will be the smaller return solenoid that is at fault.
A

Thanks for that Bob Y,
i did know about the lube of the pump, but not the cooling idea.
so it seems the gauge probably is ok.
where does the long ranger fit? do you have to remove your spare???

Dingo,

Long Ranger tank fits where spare and aux tank now reside. Is a good fit, and even with std height springs, doesn't hang below the rear axle.
As we had a rear wheel carrier, from the 90 model, this was fitted to the current cehicle.

In hindsight, wish we had purchased a Kaymar twin carrier and rear bar with the previous vehicle. They are now around $3K, I believe.

Have had no probs with the tank, except when it comes time to fill it! We can comfortably travel from south of Winton, to Toowoomba, on both tanks, almost 1500 kms. There might be some weight penalty, initially, with economy, but achieved 12-14L/100km, on recent trip to Brisbane and back.( 80 is multi-valve turbo)

Unless one was doing a lot of long trips, the original fuel set-up, is adequate. Our '90 model could achieve up to 1,000km range, and the bigger tanks cost over $1100 fitted.

Hooroo...