Pack 10
Advanced technology3cc nitro engine All-wheel drive
RADIO-CONTROLLED CAR WITH NITRO ENGINE
Lamborghini
Build and
Drive the
™
CONTENTS
™
www.model-space.com
NOT SUITABLE FOR CHILDREN UNDER THE AGE OF 14.
THIS PRODUCT IS NOT A TOY AND IS NOT DESIGNED
FOR USE IN PLAY. ITEMS MAY VARY FROM THOSE
SHOWN. THERE MAY BE COLOUR VARIATIONS
OWING TO THE MATERIALS USED.
Assembly Guide
All rights reserved © 2016
Published in the UK by De Agostini UK Ltd,
Battersea Studios 2, 82 Silverthorne Road,
London SW8 3HE
Published in the USA by De Agostini Publishing USA Inc.,
915 Broadway, Suite 609, New York, NY 10010
English adaptation by Continuo Creative, 39-41 North Road,
London N7 9DP
Printed in the EU.
The trademarks, copyrights and design rights in and associated with
Lamborghini, Lamborghini with Bull and Shield Device are
used under licence from Automobili Lamborghini S.p.A., Italy.
Picture credits:
Cover © Automobili Lamborghini S.p.A.; 150-167 Milanoedit srl.
™
RADIO-CONTROLLED CAR WITH NITRO ENGINE
Lamborghini
Build and
Drive the
The step-by-step guide to building your Lamborghini Huracán
Stage 54: Piston, connecting rod and cylinder liner
Stage 55: The crankcase
Stage 56: The carburettor
Stage 57: The crankshaft
Stage 58: The starter rear plate
Stage 59: The recoil starter
Piston, connecting rod and
cylinder liner
The parts supplied with this stage are the cylinder liner and the pre-assembled piston and
connecting rod, which are three of the most vital elements of your Huracán’s engine. You
will fit them into the main engine assembly in Stage 57. Meanwhile, here’s a quick guide to
these components and their functions.
Parts supplied:
A Piston with
connecting rod
B Cylinder liner
The cylinder liner has four ports cut in its sides.
The port indicated above is the one through which
the fuel/air mixture flows into the crankcase. It is
positioned opposite and slightly lower than the port
through which the exhaust gases exit.
The two lateral transfer ports, one of which is
shown here, are located higher up the liner than the
inlet port (on the left in this picture). These ports
transfer the fuel/air mixture from the crankcase to
the combustion chamber.
B
A
ASSEMBLY GUIDE – STAGE 54
150
The fourth opening in the side of the cylinder liner
is the exhaust port, through which the exhaust
gases are pushed out of the combustion chamber.
The piston is made of aluminium alloy. The top is
perfectly flat, a feature of most RC engines because
it is the easiest way to achieve the largest possible
volume inside the combustion chamber, and thus
the maximum amount of engine power.
The opposite end of the conrod, hidden inside the
piston, is similar to the big end but smaller, and is
known as the little end.
The fit between piston and cylinder liner is very
precise. On its upward stroke, the piston stops a few
millimetres from the top of the cylinder.
A bush (arrowed) is fitted inside the end of the
conrod into which the end of the crankshaft will fit.
This end is known as the big end. The lubricating oil
in the engine will ensure that these parts run
smoothly together.
The connecting rod (or conrod) is attached to a pin
on the inside of the piston. The other end of the
conrod is attached to the crankshaft, which pushes
the rod and the piston upwards inside the liner.
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ASSEMBLY GUIDE – STAGE 54
Above: Here you can see the main bearing, which is
unsealed, and its 12 steel balls. Its internal and
external diameters are 12mm and 20mm.
Below: The exhaust port (indicated here) is a
rectangular window through which the gases
will escape. This is where the exhaust manifold
will be connected.
The crankcase
The components for Stage 55 are the
crankcase and the carburettor attaching
screw. The crankcase is the main block of
the engine, to which all the other parts will
be fitted, and is pre-fitted with two ball
bearings that will carry the crankshaft. The carburettor attaching screw and its retaining nut are
not used until the next stage, but they are quite small, so either fit them loosely in place (see
bottom right on the opposite page) or keep them safely in a labelled bag until you need them.
ASSEMBLY GUIDE – STAGE 55
152
Parts supplied:
A Crankcase assembly
B Carburettor attaching screw
B
A
The second ball bearing, placed at the other end
of the engine, has rubber seals and seven steel
balls. The internal diameter is 7mm and the
external is 17mm.
This is one of the ports inside the crankcase
through which the fuel/air mixture passes into the
transfer ports of the cylinder liner.
The inlet port, opposite the exhaust port, is
narrower than the others. The size, shape and
position of each duct is calculated to obtain the
maximum yield from the engine.
If you wish, you can pass the carburettor attaching
screw through the indicated hole and secure it
temporarily with the nut.
The exhaust port on the inside of the crankcase
corresponds with the exhaust port in the liner.
The hole indicated here is the carburettor mount, to
which the carburettor will be fitted. This is also the
opening through which the fuel/air mixture will
enter the engine.
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ASSEMBLY GUIDE – STAGE 55
ASSEMBLY GUIDE – STAGE 56
The carburettor
Parts supplied:
A Carburettor
B O-ring
1 In addition to the carburettor, you will need the
parts from the previous stage – the crankcase and
the carburettor attaching screw.
2
1
2 The only tool required for this stage is a 7mm
socket wrench, which you will need when you tighten
the carburettor attaching screw’s retaining nut.
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With this stage, you receive another important part of the engine – the carburettor – along with
the O-ring that will create an airtight seal between it and the crankcase. Now you will begin the
assembly of your engine by fitting the carburettor to the crankcase.
A
B
3 Here you can see the different
parts of the carburettor. Don’t
dismantle yours: this is just to show
you all the components. From left to
right, they are the throttle slide
screw, the throttle slide, the
carburettor body, the fuel inlet and
needle valve housing, the needle
valve and the idle mixture screw.
4 The fuel inlet and needle valve
housing has a nozzle (left-hand
arrow) to which the pipe from the
fuel tank will be attached. The fuel
will flow through this nozzle and into
the idle mixture screw via the hole
at the bottom (lower arrow).
5 The idle mixture screw has a
lateral hole (arrowed) through which
the fuel will flow from the inlet. The
fuel will then pass through the
hollow centre of the screw, and
spray out through the hole, or jet, in
the narrow end and into the
carburettor body.
6 The throttle slide regulates the
amount of fuel/air going into the
engine. This part will be connected
to the throttle servo.
3
4 5
6
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ASSEMBLY GUIDE – STAGE 56
7
9
8
11
10
7 The needle of the
throttle slide fits inside
the jet in the centre
of the narrow end of the
idle mixture screw.
8 When you use the
throttle, the needle
moves in and out of the
jet, increasing or
decreasing the amount
of fuel entering the
carburettor.
9 The needle valve
regulates the amount of
fuel entering the fuel
inlet and needle valve
housing by widening or
narrowing the inlet. To
run the engine ‘lean’,
the needle valve should
be screwed in, and to
run it ‘rich’, it should
be screwed out.
10 The O-ring creates a
seal between the
carburettor and the
crankcase. To a certain
extent, it also thermally
isolates the carburettor
from the engine, thus
avoiding any excessive
heat build-up that can
cause a vapour lock.
11 Fit the O-ring over
the bottom port
of the carburettor,
and push it up against
the body of the carb,
as indicated.
ASSEMBLY GUIDE – STAGE 56
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12
14
13
15
12 Before fitting the carburettor
to the crankcase, you will need to
adjust the position of the recess
in the carburettor attaching screw
to match the inside of the
carburettor mount, as shown.
13 Place the carburettor into its
mount in the position shown.
14 Now tighten the carburettor
attaching screw nut to secure the
carburettor to the mount.
15 This is how the crankcase and
carburettor of your model should
look at the end of this stage.
13
156 157156 157
ASSEMBLY GUIDE – STAGE 56
1
2
ASSEMBLY GUIDE – STAGE 57
Parts supplied:
A Crankshaft
B Tapered collet
The parts provided with this stage are the crankshaft and a tapered collet, which allow you to
complete the main assembly of your Huracán’s engine. Before you begin, it is recommended that
you remove the two head covers, fitted in Stage 53, for ease of assembly.
1 You will need the crankcase and carburettor assembly from Stage
56, the cylinder head, covers and screws from Stage 53, the two
shims from Stage 49, and the parts from Stage 54.
2 You will also need a
2mm Allen key and
some lubricating oil.
158158
The crankshaft
B
A
3
5
4
6
3 Insert the crankshaft into the
crankcase, as shown in the
picture. Its shank should pass
through the two bearings inside
the crankcase.
4 Keep pushing the crankshaft
into the crankcase until the end of
the shank comes out of the case,
below the carburettor, as shown.
5 Hold the piston with the
connecting rod positioned as
shown, then lower the rod and
piston into the crankcase. You
must make sure that the
lubrication hole (arrowed) is
on the carburettor side of
the crankcase.
6 Now rotate the crankshaft until
its pin lines up with the hole in the
big end of the connecting rod.
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ASSEMBLY GUIDE – STAGE 57
9
8
10
ASSEMBLY GUIDE – STAGE 57
7
Carefully move the crankshaft
pin and the big end (circled) until
they are fully aligned, and then
push the big end onto the pin.
Apply a drop of oil to the two
parts to prevent any friction
between them, which would
damage the bush inside
the big end
.
8
This is how the parts should
look when fitted correctly.
9
Now insert the cylinder liner
into the crankcase. Before you do
so, make sure that you align the
notch on the liner with the pin on
the crankcase (both circled).
10 The cylinder liner will enter
the crankcase more easily if you
spread a thin film of lubricating oil
around it, as shown. Remove any
excess oil with a paper towel.
160160
7
11
13
12
14
11 Lower the cylinder liner into
the crankcase until it is a little
less than halfway in. Then rotate
the crankshaft to push the piston
up into the liner.
12
Be careful when pushing the
piston into the cylinder liner, as
the fit between them is very tight.
If they get stuck, apply a little
lubricating oil to the inside of the
liner, and work slowly to push
the liner fully into the crankcase.
13
This is how the cylinder liner
should look when in position.
Make sure that the pin fits into
the notch.
14 Fit the two shims from
Stage 49 on the underside of
the cylinder head, as shown.
160160 161
ASSEMBLY GUIDE – STAGE 57
15
A few drops of oil on the
shims will help to keep them
in place.
16
Align the four holes in the
cylinder head with those in the
top of the crankcase. Insert four
of the screws supplied with Stage
53 into the aligned holes, and
half-tighten them into place.
17
Fullytighten the four screws
into their holes (arrowed),
screwing each one in by a few
turns at a time until they are all
done. Use a crossover sequence:
starting with any one of them,
tighten it, and then tighten the
screw diagonally opposite it. Then
tighten the other two screws.
18 Place the head covers into
position and align the holes in
them with those in the cylinder
head. Insert the remaining four
screws into the holes in the
underside of the head to fix the
covers to it (see Stage 53).
ASSEMBLY GUIDE – STAGE 57
162
15
17
16
18
19
Tighten the four screws into place to
secure the covers.
20
Place the tapered collet onto the end
of the crankshaft. Make sure you have it
the right way round, as shown.
21
Push the collet along the shaft until it
butts up against the bearing.
22 The engine assembly should now
look like this. Store it safely until you
need it again.
162 163
19
21
20
22
ASSEMBLY GUIDE – STAGE 57
ASSEMBLY GUIDE – STAGE 58
The starter rear plate
The starter rear plate
164
The components supplied with this stage are more
parts of the engine. The starter rear plate closes
the end of the crankcase into which the crankshaft
was inserted, and the gasket fi ts between the plate
and the case. The recoil starter then fi ts onto the
outer face of the plate. You will notice that the
inner face has a raised cylindrical section. This is to
reduce the volume inside the crankcase slightly,
and the cutaway part of the section is to keep it
clear of the piston and the cylinder liner.
The gasket will ensure an airtight seal once the
plate is secured with the four screws. Keep these
parts safely to one side until the following stage,
when they will be fi tted to the engine along with the
rest of the starter system.
Parts supplied:
A Starter rear plate
B Screws 2.5 x 7mm
C Starter gasket
A
BCB
B
B
The two faces of the
starter rear plate. The
one on the left is the
outer face, to which the
recoil starter will be
attached. On the right is
the inner face, which will
fi t into the crankcase.
This is the end of the crankcase to which the
starter rear plate will be fi tted.
164 165
165
The recoil starter
Parts supplied:
A Recoil starter
B One-way bearing and housing
C Recoil starter shaft
D Screws 2.5 x 8mm
The components supplied with this stage make up the recoil starter, with which you start the engine of
your Huracán. When you have fitted these new parts, your engine will be almost complete.
A
BC
D
165
1 In addition to the components provided with this
stage, you will need a Phillips screwdriver and the
parts from Stage 58.
2 The recoil starter shaft will fi t into the hole in
the centre of the starter rear plate, as shown. Do
not fi t it yet.
1
2
ASSEMBLY GUIDE – STAGE 59
3
5
4
6
3 Locate the end of the
crankshaft (circled), inside
the crankcase.
4 Insert the recoil starter shaft
into the crankcase, placing the
cutout over the end of the
crankshaft, as shown.
5 Place the gasket onto the
starter rear plate. You may find it
easier to fit it if you push one of
the screws through one of the
holes in the plate, as shown.
6 Fit the rear plate onto the
crankcase, passing the starter
shaft through the hole in the
centre of the plate. Align the plate
as shown, and line up the four
screw holes in the plate (circled)
with those in the crankcase.
ASSEMBLY GUIDE – STAGE 59
166
7
9
8
10
7 Insert the four 2.5 x 7mm
screws from Stage 58 into the
holes and tighten them gradually,
in a crossover sequence, until
they are all secured.
8 Now fi t the one-way bearing
onto the starter shaft. Make sure
that the exposed (silver) end of
the bearing is closest to the
crankcase, as shown. The bearing
must turn anticlockwise.
9 Place the recoil starter onto
the bearing housing. Rotate the
starter so that the four holes in
the corners line up with those
in the rear plate, then tighten a
2.5 x 8mm screw into each of the
holes, again in a crossover
sequence. Do not overtighten the
screws, because this can damage
the plastic.
10 This stage is now complete,
and your engine is one step closer
to being finished.
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ASSEMBLY GUIDE – STAGE 59
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