Deagostini Lamborghini Huracan User guide

Brand: Deagostini

Model: Lamborghini Huracan

Type: User guide

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

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.

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.

150 151

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

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.

152 153

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 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.

154154

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.

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.

4 5

154 155154

ASSEMBLY GUIDE – STAGE 56

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

156156

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.

156 157156 157

ASSEMBLY GUIDE – STAGE 56

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

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.

158 159158

ASSEMBLY GUIDE – STAGE 57

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

This is how the parts should

look when fitted correctly.

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

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.

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.

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

A few drops of oil on the

shims will help to keep them

in place.

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.

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

Tighten the four screws into place to

secure the covers.

Place the tapered collet onto the end

of the crankshaft. Make sure you have it

the right way round, as shown.

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

ASSEMBLY GUIDE – STAGE 57

ASSEMBLY GUIDE – STAGE 58

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

BCB

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.

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.

ASSEMBLY GUIDE – STAGE 59

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 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.

166 167

ASSEMBLY GUIDE – STAGE 59

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Deagostini Lamborghini Huracan User guide

Deagostini Lamborghini Huracan User guide

Deagostini Lamborghini Huracan User guide

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