4WD Touring Australia – June 2018

(Ben Green) #1
088 | 4WDTouringAustralia



The brilliant simplicity of brass tyre deators.

The 4WD industry is full of gadgets that can make our life that
little bit easier. Remembering to take them can end up being
the difference between a fun trip and a total downer. They

don’t have to be big things either, sometimes it’s all about the
smaller and the simpler the better...

GO NUTS! – Adam.

The other thing I thought of? If you have a desired PSI then,
depending on your driving, it doesn’t take long for the tyres to
heat up.
When the tyres heat, the pressures will increase, so setting a
pressure to 22PSI may soon see the pressure rise up to 26. Depending
on your driving, this is when you may want to stop and drop the
pressures a second time.
Unfortunately you can’t just screw them on and leave them as,
believe it or not, they are actually quite heavy for their size and
damage to the tyre valve could occur through the centrifugal
forces from the wheel spinning.

Adjusting the pressure beyond your set PSI may mean that you
also need to carry a tyre deator as well, but for most of us we
usually stick to one set PSI.
Beach driving may be the only time that dropping tyre pressure
further may be an advantage, sometimes driving in mud as well.
These little brass deators just seem to work and if you can
take the time to preset them to the pressure you want, then it
becomes even easier again.



By now, we all know why we let our tyres
down – a much larger footprint gives much
better traction.
A softer tyre allows it to mould around
rocks and sticks to help against punctures,
plus, a softer ride eases the suspension
work rate and overall ride of the 4WD.
Last weekend, we were out in the High
Country, up Bulla way. B1 (Brett) needed to
let his tyres down and he pulled these little
brass tyre deators out. He simply walked
around the 200 Series and screwed them
down and walked off.
I, on the other hand, have always used

the speedy tyre deators, which I love, but
after getting up from the third tyre with
my knees struggling from sitting crouched
while I let the air out, I suddenly took
more notice of these little brass things.
I rst saw these Staun tyre deators
when they came out years ago, and I’ve
seen them from time to time ever since
and have been duly impressed on each
The ones that B1 had, were just a copy of
this great product. B1 doesn’t even remember
where he got them from. They are very basic
to use and are pre-set to a PSI of 18.

Of course, if you do want to get slightly
technical, you can actually override them
with a separate PSI if you like.
From what I can see, they are just a
simple apparatus that works with a valve
and a spring. As you tighten the valve,
the spring tension is greater so it holds a
larger pressure. And, when screwed out,
it releases tension on the spring so it lets
out air to a lower PSI.
B1 sat down and watched me walk around
the car while he simply waited for the valves
to stop letting air out and then he unscrewed
them and retted the valve caps.
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