second air tank

Troll 81

I have been using my spare tyre on the bake of the car .
You need to make up a deecantng hose and put about 75 - 80 KPA in the spare.

This will put enough air in the fat tyre aswell as leaving the spare tyre ok to use the pressures will become =

You can also top the 4 main tyres up to road pressure if you have been running on the sand.

From

BBB

A friend of mine used the tubes of his buul bar.

Truck wreckers, wander around until you find a tank of the size you want, quite often come with fittings and relief valves etc.

Same here as BBB

If you think about it , a tyre is around 60lt and a standard compressor tank of 24lt
doesn't go a long way even at 100psi.
Ok if your building a comp rig but a bit awkward in touring car.

The spare tyre system has its detractors but it has the same capacity as each other tyre and is easy to work out what it can do.

I.E. if your tyres are 18psi and spare is at 68psi then you can pump up
each of the others by 10psi and all 5 tyres will be at 28psi which is
enough to go home or get to servo and this is what tends to happen in practise.

Hence transfer hose from spare tyre ,as has been described here before is a
very practical device.

Using a screw on attachment to the tyre is the best way to go , and remember the best air comes from other peoples tyres

Robin Miller

Just buy a truck air tank and mount it under the truck, 1000's of others do it without issue.. check out Woops truck on Olimits.. he has 3 tanks with an outlet on each corner with endless air.

Thanks for the imput guys I will look into tanks when I get back but then again maybe a second big compressor might be the way to go anyway..time will tell :)

Dive tank laying down on the floor of the rear cargo area. Costs $8 to fill up, but will give you heaps of air. Should be cheap on Ebay. Be VERY careful not to overfil the tyres through, theyr'e up to 40PSI in no time!

Hello Troll,
I've got one of these, Tank mounted between the chassis rail and the gearbox, above the gearbox rear crossmember. The one I bought was as this auction describes, a factory second. What that means is in the case of mine it comes with the first scratch as standard.

D-Jack mentions a SCUBA cylinder for inflating tyres. I use one of those too for the same job. Down sides are its weight and size on a long trip. You've got to fit it and leave something else out. The other problem is you must by law posses a SCUBA diving certification for the shop to fill the cylinder with high pressure air also I've never ried to get a SCUBA fill in Birdsville but I imagine it would be challenging.

Geoff.

I use 2 tanks (a 3L and a 4L {approx}) which I have mounted in the back of the Patrol, up high on the cargo barrier. The twin compressors are just below, sitting on the single drawer system, above the left wheel arch. They feed the 2 tanks via a 3-way brass joiner and then have outlets going to front and back of Patrol.

In my experience, even with these 2 tanks (admitedly there is still not that much volume available), there is no real advantage when trying to air-up tyres. The compressor/s very quickly cut-in (cos the pressure has dropped to 80psi), once the hose has been connected to a tyre.......it's only a matter of seconds.

I will be able to test out this weekend how much quicker the 2 pumps together, make the job of airing-up.

In my Ptrol I have a stainless steel stored pressure fire extinguisher mounted in the winch space of the bull bar. They don't rust and can be safely pressurised to 120 psi. They can often be found hanging about !

Ken

People,
haven't heard anyone mention a LPG gas cilinder. These also hold good air and fit very nice under the bull bar below the winch.

My 2c
Toytruck

Hi All

I have put a lightweight tank on my cargo barrier near the bottom behind my fridge, it is supplied by two pumps, the ARB one and one of those big black ones that I have put into a hole beside the draws and in the gard.
The tank has a 10mm line running to the ARB tank so the pressure switch turns on both pumps and all runs of the ARB switch one the dash, I can also isolate the ARB so I only turn it on when pumping up tyres.

I use it for everything even have a small coil hose with a air gun on it and blow all the dust of the back before I set up camp.

Have fun

Remember though any tank should have a pressure relief valve set at an appropriate pressure, having seen what an old truck tank did to a ute body when it went off underneath at about 150psi!