Deagostini RB7 - Cleaning the Air Filter; Cleaning the Filter

Red Bull Racing RB7: Step by Step
™
376
Some nitro fuel
Phillips screwdriver
(size 1)
Absorbent cloth
Small container
Air lter
Air lter
oil
Protective
gloves
Craft knife
To clean the air lter, you will need
these tools and materials.
CLEANING THE
AIR FILTER
TO PROTECT THE ENGINE FROM CONTAMINATION AND TO INCREASE ITS LIFESPAN,
YOU SHOULD GIVE THE AIR FILTER A THOROUGH CLEAN AT REGULAR INTERVALS.
HERE’S HOW YOU DO IT.
The air lter of your RB7 model contains a cylindrical
foam insert. This traps grains of dust and dirt that would
otherwise be carried along with the air sucked into the
carburettor and then into the cylinder, where they could
cause damage to the cylinder liner. When your RC car is
running, the air lter intake is only a few centimetres above
the ground. So as well as having to lter out the dust that
exists in the air, it has to deal with dirt from the track and
the residue of worn tyres. Consequently, the lter can
become clogged after quite a short time. The engine no
longer receives enough air to burn the fuel in the cylinder
completely, and the result is a reduction in engine power.
CLEANING THE FILTER
Depending on the condition of the track, it is advisable to
clean the air lter at intervals of ve to ten tanks of fuel.
Cleaning it doesn’t take long, and the process requires little
eort. The tools and materials needed are illustrated in the
photograph on the right, and they include items that you
may already have in your RC workshop case. The cleaning
agent is the same nitro fuel that you use to run your car.
Please note that this uid can cause skin irritation, so
make sure to protect yourself by wearing gloves when you
use it to clean the lter. Just follow the steps on the next
page, and your GX21 engine will reward you by delivering
consistent performance.
Before any prolonged period in which the engine will not
be used, you can supplement this regular basic cleaning
of the lter element by washing it in a bowl of warm water
containing a little dishwashing liquid, which will remove
all traces of oil residue. Then place it in clean water to rinse
away all the detergent.