Xray XB808 Instruction Manual

Page 1

Page 2

INTRODUCTION

The XRAY XB808 is a modern, high-competition premium luxury racing 1/8 nitro buggy that is the epitome of high-performance and fine distinctive design. Your XB808 offers highest performance, responsive handling, and traditionally exceptional XRAY quality, engineering, and design. The superb craftsmanship and attention to detail are clearly evident everywhere on the XRAY XB808.

XB808 was designed around a no compromise platform; the attention to detail creates a low maintenance, extra long life nitro buggy. The ultra-low center of gravity (CG) and optimized weight balance makes set-up, driving, and maintenance easy and quick.

The XRAY XB808 was created by blending highest-quality materials and excellent design. On high-speed flat tracks or bumpy tracks, whether driving for fun or racing to win, the XB808 delivers outstanding performance, speed, and precision handling.

We have made every effort to make these instructions as easy to understand as possible. However, if you have any difficulties, problems, or questions, please do not hesitate to contact the XRAY support team at info@teamxray.com. Also, please visit our web site at www.teamxray.com to find the latest updates, set-up information, option parts, and many other goodies. We pride ourselves on taking excellent care of our customers.

SAFETY PRECAUTIONS

WARNING: This product contains a chemical known to the state of California to cause cancer and birth defects or other reproductive harm. CAUTION: CANCER HAZARD Wash thoroughly after using. DO NOT use product while eating, drinking or using tobacco products. May cause chronic effects to gastrointestinal tract, CNS, kidneys, and blood. MAY CAUSE BIRTH DEFECTS.

When building, using and/or operating this model always wear protective glasses and gloves.

Take appropriate safety precautions prior to operating this model. You are responsible for this model‘s assembly and safe operation! Please read the instruction manual before building and operating this model and follow all safety precautions. Always keep the instruction manual at hand for quick reference, even after completing the assembly. Use only genuine and original authentic XRAY parts for maximum performance. Using any third party parts on this model will void guaranty immediately.

Improper operation may cause personal and/or property damage. XRAY and its distributors have no control over damage resulting from shipping, improper construction, or improper usage. XRAY assumes and accepts no responsibility for personal and/or property damages resulting from the use of improper building materials, equipment and operations. By purchasing any item produced by XRAY, the buyer expressly warrants that he/she is in compliance with all applicable federal, state and local laws and regulation regarding the purchase, ownership and use of the item. The buyer expressly agrees to indemnify and hold harmless XRAY for all claims resulting directly or indirectly from the purchase, ownership or use of the product. By the act of assembling or operating this product, the user accepts all resulting liability. If the buyer is not prepared to accept this liability, then he/she should return this kit in new, unassembled, and unused condition to the place of purchase.

IMPORTANT NOTES – GENERAL

• This product is not suitable for children under 16 years of age without the direct supervision of a responsible and knowledgeable adult.

• Carefully read all manufacturers warnings and cautions for any parts used in the construction and use of your model.

• Assemble this kit only in places away from the reach of very small children.

• First-time builders and users should seek advice from people who have building experience in order to assemble the model correctly and to allow the model to reach its performance potential.

• Exercise care when using tools and sharp instruments.

• Take care when building, as some parts may have sharp edges.

• Keep small parts out of reach of small children. Children must not be allowed to put any parts in their mouth, or pull vinyl bag over their head.

• Read and follow instructions supplied with paints and/or cement, if used (not included in kit).

• Immediately after using your model, do NOT touch equipment on the model such as the motor and speed controller, because they generate high temperatures. You may seriously burn yourself seriously touching them.

• Follow the operating instructions for the radio equipment at all times.

• Do not put ﬁ ngers or any objects inside rotating and moving parts, as this may cause damage or serious injury as your ﬁ nger, hair, clothes, etc. may get caught.

• Be sure that your operating frequency is clear before turning on or running your model, and never share the same frequency with somebody else at the same time. Ensure that others are aware of the operating frequency you are using and when you are using it.

• Use a transmitter designed for ground use with RC cars. Make sure that no one else is using the same frequency as yours in your operating area. Using the same frequency at the same time, whether it is driving, ﬂ ying or sailing, can cause loss of control of the RC model, resulting in a serious accident.

• Always turn on your transmitter before you turn on the receiver in the car. Always turn off the receiver before turning your transmitter off.

• Keep the wheels of the model off the ground when checking the operation of the radio equipment.

• Disconnect the battery pack before storing your model.

• When learning to operate your model, go to an area that has no obstacles that can damage your model if your model suffers a collision.

• Remove any sand, mud, dirt, grass or water before putting your model away.

• If the model behaves strangely, immediately stop the model, check and clear the problem.

• To prevent any serious personal injury and/or damage to property, be responsible when operating all remote controlled models.

• The model car is not intended for use on public places and roads or areas where its operation can conﬂ ict with or disrupt pedestrian or vehicular trafﬁ c.

• Because the model car is controlled by radio, it is subject to radio interference from many sources that are beyond your control. Since radio interference can cause momentary loss of control, always allow a safety margin in all directions around the model in order to prevent collisions.

• Do not use your model:

- Near real cars, animals, or people that are unaware that an RC car is being driven.

- In places where children and people gather

- In residential districts and parks

- In limited indoor spaces

- In wet conditions

- In the street

- In areas where loud noises can disturb others, such as hospitals and residential areas.

- At night or anytime your line of sight to the model may be obstructed or impaired in any way.

To prevent any serious personal injury and/or damage to property, please be responsible when operating all remote controlled models.

Failure to follow these instructions will be considered as abuse and/or neglect.

CUSTOMER SUPPORT

XRAY Europe

K Výstavisku 6992 91101 Trenčín Slovakia, EUROPE Phone: +421-32-7401100 Fax: +421-32-7401109 Email: info@teamxray.com

We have made every effort to make these instructions as easy to understand as possible. However, if you have any difﬁ culties, problems, or questions, please do not hesitate to contact the XRAY support team at info@teamxray.com. Also, please visit our Web site at www.teamxray.com to ﬁ nd the latest updates, set-up information, option parts, and many other goodies. We pride ourselves on taking excellent care of our customers.

You can join thousands of XRAY fans and enthusiasts in our online community at:

www.teamxray.com

XRAY USA

RCAmerica, 167 Turtle Creek Boulevard Suite C Dallas, Texas 75207 USA Phone: (800) 519-7221 * (214) 744-2400 Fax: (214) 744-2401 Email: xray@rcamerica.com

IMPORTANT NOTES – NITRO ENGINES

• Always test the brakes and the throttle before starting your engine to avoid losing control of the model.

• Make sure the air ﬁ lter is clean and oiled.

• Never run your engine without an air ﬁ lter. Your engine can be seriously damaged if dirt and debris get inside the engine.

• For proper engine break-in, please refer to the manual that came with the engine.

• Do not run near open ﬂ ames or smoke while running your model or while handling fuel.

• Some parts will be hot after operation. Do not touch the exhaust or the engine until they have cooled. These parts may reach 275°F during operation!

Page 3

IMPORTANT NOTES – ELECTRICAL

• Insulate any exposed electrical wiring (using heat shrink tubing or electrical tape) to prevent dangerous short circuits. Take maximum care in wiring, connecting and insulating cables. Make sure cables are always connected securely. Check connectors for if they become loose. And if so, reconnect them securely. Never use R/C models with damaged wires. A damaged wire is extremely dangerous, and can cause short-circuits resulting in ﬁ re. Please have wires repaired at your local hobby shop.

• Low battery power will result in loss of control. Loss of control can occur due to a weak battery in either the transmitter or the receiver. Weak running battery may also result in an out of control car if your car‘s receiver power is supplied by the running battery. Stop operation immediately if the car starts to slow down.

• When not using RC model, always disconnect and remove battery.

• Do not disassemble battery or cut battery cables. If the running battery short-circuits, approximately 300W of electricity can be discharged, leading to ﬁ re or burns. Never disassemble battery or cut battery cables.

• Use a recommended charger for the receiver and transmitter batteries and follow

the instructions correctly. Over-charging, incorrect charging, or using inferior chargers can cause the batteries to become dangerously hot. Recharge battery when necessary. Continual recharging may damage battery and, in the worst case, could build up heat leading to ﬁ re. If battery becomes extremely hot during recharging, please ask your local hobby shop for check and/or repair and/or replacement.

• Regularly check the charger for potential hazards such as damage to the cable, plug, casing or other defects. Ensure that any damage is rectiﬁ ed before using the charger again. Modifying the charger may cause short-circuit or overcharging leading to a serious accident. Therefore do not modify the charger.

• Always unplug charger when recharging is ﬁ nished.

• Do not recharge battery while battery is still warm. After use, battery retains heat. Wait until it cools down before charging.

• Do not allow any metal part to short circuit the receiver batteries or other electrical/ electronic device on the model.

• Immediately stop running if your RC model gets wet as may cause short circuit.

• Please dispose of batteries responsibly. Never put batteries into ﬁ re.

WARRANTY

XRAY guarantees this model kit to be free from defects in both material and workmanship within 30 days of purchase. The total monetary value under warranty will in no case exceed the cost of the original kit purchased. This warranty does not cover any components damaged by use or modiﬁ cation or as a result of wear. Part or parts missing from this kit must be reported within 30 days of purchase. No part or parts will be sent under warranty without proof of purchase. Should you ﬁ nd a defective or missing part, contact the local distributor. Service and customer support will be provided through local hobby store where you have purchased the kit, therefore make sure to purchase any XRAY products at your local hobby store. This model racing car is considered to be a high-performance racing vehicle. As such this vehicle will be used in an extreme range of conditions and situations, all which may cause premature wear or failure of any component. XRAY has no control over usage of vehicles once they leave the dealer, therefore XRAY can only offer warranty against all manufacturer‘s defects in materials, workmanship, and assembly at point of sale and before use. No warranties are expressed or implied that cover damage caused by what is considered normal use, or cover or imply how long any model cars‘ components or electronic components will last before requiring replacement.

Due to the high performance level of this model car you will need to periodically maintain and replace consumable components. Any and all warranty coverage will not cover replacement of any part or component damaged by neglect, abuse, or improper or unreasonable use. This includes but is not limited to damage from crashing, chemical and/or water damage, excessive moisture, improper or no

maintenance, or user modiﬁ cations which compromise the integrity of components. Warranty will not cover components that are considered consumable on RC vehicles. XRAY does not pay nor refund shipping on any component sent to XRAY or its distributors for warranty. XRAY reserves the right to make the ﬁ nal determination of the warranty status of any component or part.

Limitations of Liability

XRAY makes no other warranties expressed or implied. XRAY shall not be liable for any loss, injury or damages, whether direct, indirect, special, incidental, or consequential, arising from the use, misuse, or abuse of this product and/or any product or accessory required to operate this product. In no case shall XRAY‘s liability excess the monetary value of this product.

Take adequate safety precautions prior to operating this model. You are responsible for this model’s assembly and safe operation.

Disregard of the any of the above cautions may lead to accidents, personal injury, or property damage. XRAY MODEL RACING CARS assumes no responsibility for any injury, damage, or misuse of this product during assembly or operation, nor any addictions that may arise from the use of this product. All rights reserved.

QUALITY CERTIFICATE

XRAY MODEL RACING CARS uses only the highest quality materials, the best compounds for molded parts and the most sophisticated manufacturing processes of TQM (Total Quality Management). We guarantee that all parts of a newly-purchased kit are manufactured with the highest regard to quality. However, due to the many factors inherent in model racecar competition, we cannot guarantee any parts once

you start racing the car. Products which have been worn out, abused, neglected or improperly operated will not be covered under warranty. We wish you enjoyment of this high-quality and high-performance RC car and wish you best success on the track!

In line with our policy of continuous product development, the exact specifications of the kit may vary. In the unlikely event of any problems with your new kit, you should contact the model shop where you purchased it, quoting the part number. We do reserve all rights to change any specification without prior notice. All rights reserved.

R/C & BUILDING TIPS

• Make sure all fasteners are properly tightened. Check them periodically.

• Make sure that chassis screws do not protrude from the chassis.

• For the best performance, it is very important that great care is taken to ensure the free movement of all parts.

• Clean all ball-bearings so they move very easily and freely.

• Tap or pre-thread the plastic parts when threading screws.

• Self-tapping screws cut threads into the parts when being tightened. Do not use excessive force when tightening the self-tapping screws because you may strip out the thread in the plastic. We recommended you stop tightening a screw when you feel some resistance.

• Ask your local hobby shop for any advice.

Please support your local hobby shop. We at XRAY Model Racing Cars support all local hobby dealers. Therefore we ask you, if at all possible, to purchase XRAY products at your hobby dealer and give them your support like we do. If you have difﬁ culty ﬁ nding XRAY products, please check out www.teamxray.com to get advice, or contact us via email at info@teamxray.com, or contact the XRAY distributor in your country.

IMPORTANT NOTES – NITRO FUEL

• Handle fuel only outdoors. Never handle nitro fuel indoors, or mix nitro fuel in a place where ventilation is bad.

• Only use nitro fuel for R/C models. Do not use gasoline or kerosene in R/C models as it may cause a ﬁ re or explosion, and ruin your engine.

• Nitro fuel is highly inﬂ ammable, explosive, and poisonous. Never use fuel indoors or in places with open ﬁ res and sources of heat.

• Always keep the fuel container cap tightly shut.

• Always read the warning label on the fuel container for safety information.

• Nitro-powered model engines emit poisonous vapors and gasses. These vapors irritate eyes and can be highly dangerous to your health. We recommend wearing rubber or vinyl gloves to avoid direct contact with nitro fuel.

• Nitro fuel for RC model cars is made of the combination of the methyl alcohol,

castor or synthetic oil, nitro methane etc. The ﬂ ammability and volatility of these elements is very high, so be very careful during handling and storage of nitro fuel.

• Keep nitro fuel away from open ﬂ ame, sources of heat, direct sunlight, high temperatures, or near batteries.

• Store fuel in a cool, dry, dark, well-ventilated place, away from heating devices, open ﬂ ames, direct sunlight, or batteries. Keep nitro fuel away from children.

• Do not leave the fuel in the carburetor or fuel tank when the model is not in use. There is danger that the fuel may leak out.

• Wipe up any spilled fuel with a cloth.

• Be aware of spilled or leaking fuel. Fuel leaks can cause ﬁ res or explosions.

• Do not dispose of fuel or empty fuel containers in a ﬁ re. There is danger of explosion.

Page 4

SYMBOLS USED

L=R

OIL

Part bags used Assemble left and

right sides the

same way

Assemble in the

specified order

Pay attention

here

Assemble as

many times as specified (here twice)

Apply instant

glue

Cut off shadded

portion

Cut off

remaining

material

Tighten screw

gently

TOOLS REQUIRED

EQUIPMENT REQUIRED

TOOLS & EQUIPMENT INCLUDED

Assemble front

and rear the same

way

Apply oil

Use special

tool

Silicone Shock Oil Silicone Diff Oil Air Filter Oil

Receiver Pack

Transmitter

.21 Engine Manifold

Exhaust

Glow Plug IgniterStarter Box & Battery Pack

Steering and Throttle Servos

Battery Charger

Receiver

Lexan PaintFuel

Special Tool for all turnbuckles, nuts

CA Glue

Phillips 5.0mm

(HUDY #165049)

Socket 5.0 / 5.5mm

(HUDY #170058/#170059)

Allen 1.5 / 2.0 / 2.5mm

(HUDY #111549/#112049/#112549)

17mm Wheel Nut Tool

(HUDY #107570)

Side Cutters Hobby Knife Body Reamer

(HUDY #107600)

Cross wrench

(HUDY #107581)

Flywheel Tool

(HUDY #182010)

ScissorsNeedle Nose Pliers

➊➋➌

Apply grease Apply

threadlock

Ensure smooth

non-binding

movement

Use pliers Follow tip here

ARM REAMER 3mm/4mm

(HUDY #107633/#107634)

Graphite Grease

(HUDY #106210)

Transmitter Batteries

Threadlock

Follow Set-Up

Book

Use cleaner

GEAR DIFF

Time

Page 5

808 TECH TIPS

962080

S 8x0.1

962081

S 8x0.2

TIP

Tighten screw until pivot ball is tight against block.

Lift ball joint until it snaps into place over pivot ball. Ball joint should move freely.

The ﬁ nished joint. Loosen and remove screw.

INSTALLING PIVOT BALLS INTO COMPOSITE BALL-JOINTS

Place the pivot ball on the ball joint and use a screw to tighten it to an engine mount or some other part.

Before ﬁ lling in the differentials with oil we suggest ﬁ rst to check the gear mesh as below. If there is too much or too little diff side play, this may create non-optimal gear mesh between the diff gear and the pinion drive gear. This is easily resolved by inserting 1 or 2 of the included thin shims behind a diff outdrive ball-bearing, depending on how much play there is.

FRONT & REAR DIFF GEAR MESH ADJUSTMENT

THE LOCATION OF THE SHIM(S) DEPENDS ON WHETHER YOU ARE TRYING TO CLOSE OR OPEN THE GAP:

To close a wide gap:

add 1 or 2 shims against diff spur gear

TO CLOSE A WIDE GAP

TO OPEN A NARROW GAP

To open a narrow gap:

add 1 or 2 shims on the other side of the diff, away from spur gear

#962080 WASHER S 8 x 0.1 mm (10) #962081 WASHER S 8 x 0.2 mm (10)

TIP

insert shim(s) here

DRIVE SHAFT PINS SERVICING

TIP

To enjoy the longest possible lifespan of the drive shafts and diff outdrives, it is extremely important to properly service the drive shaft pins.

Inspect the pins after every 3 hours of runtime. If the pins show any wear, replace them with new pins.

For easy and comfortable drive pin replacements use #106000 HUDY Drive Pin Replacement Tool.

To replace the worn pins use only the premium HUDY drive pins #106050.

GRAPHITE PARTS PROTECTION

TIP

Follow this tech tip to protect the graphite parts.

Fine sandpaper

Use ﬁ ne sandpaper to sand smooth the edges of all graphite parts.

Apply CA glue to all edges of the graphite parts.

Protect all XB808 Graphite Parts:

• Front shock tower

• Rear shock tower

• Steering plate

• Radio plate

Do not use drive shafts when the pins are worn.

Press out the worn pins. Press in new pins and

regularly inspect for wear.

CLOSE A WIDE GAP

OPEN A NARROW GAP

Page 6

1. FRONT & REAR DIFFERENTIALS

F=R

STEP DETAIL

➊

➋

➌

➍

➎

➏

➏➐

➐

35 2070 XB808 COMPOSITE BEARING HUB FOR DIFF (4) 35 5001 XB808 FRONT/REAR DIFFERENTIAL - SET 35 5020 DIFFERENTIAL CASE 35 5030 STEEL DIFF BEVEL & SATELLITE GEARS (2+4) 35 5043 FRONT/REAR DIFF LARGE BEVEL GEAR 43T - HUDY STEEL 35 5062 XB808 FRONT/REAR DIFF OUTDRIVE ADAPTER (2) HUDY SPRING STEEL™ 35 5080 DIFF PIN (2)

35 5090 DIFF GASKET (4) 90 3312 HEX SCREW SFH M3x12 (10) 94 0814 HIGH-SPEED BALL-BEARING 8x14x4 BLUE COVERED (2) 96 4030 WASHER S 3.5x12x0.2 (10) 96 4060 WASHER S 6x18x0.2 (10) 97 1060 SILICONE O-RING 6x1.5 (10) 98 0212 PIN 2x11.6 (10)

BAGS

940814

352070

903312

355043

964060

355030

971060

355020

940814

355090

964030

980212

971060

355080

355062

352070

355062

Use HUDY Ball-Bearing Grease for servicing:

#106220 - Standard #106221 - Extra #106222 - Premium

940814

BB 8x14x4

964060

S 6x18x0.2

971060

O 6x1.5

980212

P 2x11.6

Graphite Grease

(HUDY #106210)

Graphite Grease

(HUDY #106210)

FRONT/REAR DIFF LARGE BEVEL GEAR

#355041

DIFF LARGE BEVEL GEAR 41T (OPTION)

#355043

DIFF LARGE BEVEL GEAR 43T (STANDARD)

➏

➐

Page 7

GEAR DIFF

VERY IMPORTANT!

Fill the differentials with oil just above the satellite gears.

After assembly the differentials should have a length of 32.6~32.7 mm measured from the ends of the installed ball-bearings. If differentials are longer, retighten the 4 screws holding the crown gears.

32.6~32.7 mm

OIL

INCORRECT

CORRECT

FRONT & REAR DIFFERENTIALS

964030

S 3.5x12x0.2

903312

SFH M3x12

F=R

OIL

Tighten the screws equally Finish tightening in this order

OIL

➊

➋

➌

➍

➎

➏

➊

➋

➌

➍

➐

940814

BB 8x14x4

964060

S 6x18x0.2

971060

O 6x1.5

980212

P 2x11.6

STEP DETAIL

Use HUDY Ball-Bearing Grease for servicing:

#106220 - Standard #106221 - Extra #106222 - Premium

➏

Use these silicone oils included in the kit for initial settings:

Front diff:

5000cSt / Rear diff: 2000cSt

Rear diff:

Silicone oil 2000cSt Fill just above the satellite gears.

Front diff:

Silicone oil 5000cSt Fill just above the satellite gears.

Graphite Grease

(HUDY #106210)

Graphite Grease

(HUDY #106210)

Page 8

STEP DETAIL

CENTER DIFFERENTIAL

BAG

➊

➋

➌

➍

➎

➏

➏➐

➐

355070

940814

903312

355054

971060

355030

971060

355020

352070

940814

355090

964060

964030

980212

355080

355070

352070

35 2070 XB808 COMPOSITE BEARING HUB FOR DIFF (4) 35 5011 XB808 CENTRAL DIFFERENTIAL - SET 35 5020 DIFFERENTIAL CASE 35 5030 STEEL DIFF BEVEL & SATELLITE GEARS (2+4) 35 5054 CENTER DIFF SPUR GEAR 42T 35 5070 CENTER DIFF OUTDRIVE ADAPTER (2) - HUDY STEEL 35 5080 DIFF PIN (2) 35 5090 DIFF GASKET (4)

90 3312 HEX SCREW SFH M3x12 (10) 94 0814 HIGH-SPEED BALL-BEARING 8x14x4 BLUE COVERED (2) 96 4030 WASHER S 3.5x12x0.2 (10) 96 4060 WASHER S 6x18x0.2 (10) 97 1060 SILICONE O-RING 6x1.5 (10) 98 0212 PIN 2x11.6 (10)

Use HUDY Ball-Bearing Grease for servicing:

#106220 - Standard #106221 - Extra #106222 - Premium

940814

BB 8x14x4

971060

O 6x1.5

964060

S 6x18x0.2

980212

P 2x11.6

Graphite Grease

(HUDY #106210)

Graphite Grease

(HUDY #106210)

CENTER DIFF SPUR GEAR

#355053 43T

(OPTION) #355054 42T (STANDARD) #355055 41T

(OPTION)

➏

➐

Page 9

GEAR DIFF

After assembly the differential should have a length of 32.6~32.7 mm measured from the ends of the installed ball-bearings. If differential is longer, retighten the 4 screws holding the spur gear.

32.6~32.7 mm

➊

➋

➍

➎

➏

➌

➐

940814

BB 8x14x4

971060

O 6x1.5

964060

S 6x18x0.2

Center diff:

Silicone oil 7000cSt Fill just above the satellite gears.

980212

P 2x11.6

VERY IMPORTANT!

Fill the differentials with oil just above the satellite gears.

OIL

INCORRECT

CORRECT

CENTER DIFFERENTIAL

964030

S 3.5x12x0.2

903312

SFH M3x12

Tighten the screws equally Finish tightening in this order

OIL

➊

➋

➌

➍

STEP DETAIL

➏

Use HUDY Ball-Bearing Grease for servicing:

#106220 - Standard #106221 - Extra #106222 - Premium

Use the following silicone oil included in the kit for initial setting:

Center diff:

7000cSt

Graphite Grease

(HUDY #106210)

Graphite Grease

(HUDY #106210)

Page 10

2. FRONT TRANSMISSION

Cut on both front and rear bulkhead blocks

941319

BB 13x19x4

902305

SH 3x5

902312

SH 3x12

980263

P 2.5x13

Follow the TECH TIP on page 5 for drive shaft pin servicing

Follow the TECH TIP on page 5 to protect graphite parts

3x5

3x12

Replace this pin when wear is present

Graphite Grease (HUDY #106210)

FRONT DIFF 5000 cSt

Graphite Grease

(HUDY #106210)

901303

SB 3x3

3x12

Loosen all 3 screws VERY SLIGHTLY

(approximately 1/12 of a turn). Pinion must turn freely.

➊

➋

➊

➋

DETAIL

step

DETAIL

➊

➋

➌

➍

➏

FRONT

DETAIL

Use HUDY Ball-Bearing Grease for servicing:

#106220 - Standard #106221 - Extra #106222 - Premium

step

STEP DETAIL

➊

➐

902312

352092

352002

355001 FRONT DIFF

980263

355238

355421

941319

352002

355111

941319

902305

902312

35 2002 XB808 DIFF BULKHEAD BLOCK SET FRONT/REAR 35 2092 XB808 GRAPHITE FRONT SHOCK TOWER - CNC MACHINED 4 MM 35 5111 XB808 PINION GEAR 10T 35 5238 XB808 CVD DRIVE SHAFT COUPLING HUDY SPRING STEEL™ 35 5421 XB808 FRONT CENTRAL CVD DRIVE SHAFT - HUDY SPRING STEEL™

90 1303 HEX SCREW SB M3x3 (10) 90 2305 HEX SCREW SH M3x5 (10) 90 2312 HEX SCREW SH M3x12 (10) 94 1319 HIGH-SPEED BALL-BEARING 13x19x4 RUBBER SEALED (2) 98 0263 PIN 2.5x13 (10)

BAG

Tighten screws fully. Make sure the bearing seats properly in the bulkhead.

➎

STEP DETAIL

➎

901303

Use 1.5mm Allen wrench

DETAIL

Page 11

REAR TRANSMISSION

Cut on both front and rear bulkhead blocks

REAR DIFF 2000 cSt

Follow the TECH TIP on page 5 to protect graphite parts

Graphite Grease

(HUDY #106210)

Follow the TECH TIP on page 5 for drive shaft pin servicing

3x5

Graphite Grease (HUDY #106210)

941319

BB 13x19x4

902305

SH 3x5

902312

SH 3x12

980263

P 2.5x13

901303

SB 3x3

3x12

Loosen all 3 screws VERY SLIGHTLY

(approximately 1/12 of a turn). Pinion must turn freely.

➊

➋

➊

➋

Graphite Grease (HUDY #106210)

DETAIL

step

BAG

35 2002 XB808 DIFF BULKHEAD BLOCK SET FRONT/REAR 35 3092 XB808 GRAPHITE REAR SHOCK TOWER - CNC MACHINED 3.5 MM 35 5111 XB808 PINION GEAR 10T 35 5238 XB808 CVD DRIVE SHAFT COUPLING - HUDY SPRING STEEL™ 35 5621 XB808 REAR CENTRAL CVD DRIVE SHAFT - HUDY SPRING STEEL™

90 1303 HEX SCREW SB M3x3 (10) 90 2305 HEX SCREW SH M3x5 (10) 90 2312 HEX SCREW SH M3x12 (10) 94 1319 HIGH-SPEED BALL-BEARING 13x19x4 RUBBER SEALED (2) 98 0263 PIN 2.5x13 (10)

3x12

step

➊

➋

➌

➏

Use HUDY Ball-Bearing Grease for servicing:

#106220 - Standard #106221 - Extra #106222 - Premium

STEP DETAIL

➊

➐

➎

STEP DETAIL

➎

Replace this pin when wear is present

➍

Use 1.5mm Allen wrench

352002

355001 REAR DIFF

980263

941319

352002

941319

355238

902305

902312

353092

355621

355111

901303

DETAIL

Tighten screws fully. Make sure the bearing seats properly in the bulkhead.

DETAIL

Page 12

TOE-IN

ANTI-SQUAT

ROLL CENTER

909395

SS 3.5x45

909372

SS 3.5x22

FRONT VIEW

33 3450 ANTI-ROLL BAR BALL JOINT 5.8 MM (2) 35 2002 XB808 DIFF BULKHEAD BLOCK SET FRONT/REAR 35 2460 PIVOT BALL 5.8 (10) 35 2470 BALL JOINT 5.8 (8) 35 3114 XB808 COMPOSITE REAR LOWER SUSPENSION ARM 35 3302 XB808 COMPOSITE REAR LOWER SUSP. HOLDERS SET 35 3371 XB808 SET OF COMPOSITE LOWER ARM SHIMS 35 3486 XB808 REAR ANTI-ROLL BAR 2.6MM 35 7213 XB808 LOWER INNER PIVOT PIN SCREW 4MM (2)

90 1303 HEX SCREW SB M3x3 (10) 90 1305 HEX SCREW SB M3x5 (10) 90 1312 HEX SCREW SB M3x12 (10) 90 1408 HEX SCREW SB M4x8 (10) 90 2318 HEX SCREW SH M3x18 (10) 90 3308 HEX SCREW SFH M3x8 (10)) 90 9372 SCREW PHILLIPS SS 3.5x22 (10) 90 9395 SCREW PHILLIPS SS 3.5x45 (10) 96 0040 NUT M4 (10)

BAG

3.5x22

3.5x45

REAR ANTI-ROLL BARS

#353482 2.2mm

(OPTION)

#353484 2.4mm

(OPTION) #353486 2.6mm (STANDARD) #353488 2.8mm

(OPTION)

3. REAR SUSPENSION

333450

352470

353114

352460

960040

353302

909372

901303

353486

353371

901408

353371

902318

901305

903308

352002

909395

357213

353302

The composite suspension holders feature preset optimum geometry 3° rear toe-in and 2° rear anti-squat. Use optional adjustable suspension holders for further geometry adjustment.

Do not overtighten the screws. Overtightening may result in composite suspension holder deformation.

901312

Page 13

DOWNSTOP WHEELBASE

ANTI-ROLL BAR

REAR SUSPENSION

901312

SB M3x12

901303

SB M3x3

902318

SH M3x18

903308

SFH M3x8

901305

SB M3x5

901408

SB M4x8

960040

N M4

➊

➋

➌

➍

3x5

3x8

L=R

4mm

DOWNSTOP SETTING

L=R

Loosen the 3x5 setscrew if the anti-

roll bar does not turn freely

4x8 Downstop screw

2mm

Do not overtighten the self-locking nut. Overtightening may result in suspension binding.

L=R

3x12

1.5mm

6mm

Follow the TECH TIP on page 5 to install the pivot balls

3x3

L=R

Step check for free movement

➊

0mm

STEP DETAIL

➍

3x18

Step

➊

(HUDY #107634)

ARM REAMER

If the suspension arm does not move freely use a HUDY Arm Reamer to size the holes of the arms

Check for free movement

REAR ARM

L=R

Ensure there is a little play

DETAIL

INITIAL POSITION

CORRECT

After tightening the suspension pins the suspension holders will slightly bend

which is correct and will not have any negative effect. However it is very important to ensure that the suspension arm moves freely with no binding. When tightening the selflocking nut, ensure that the thread on the pin goes into the nylon insert inside the end of the nut.

Page 14

TRACK WIDTH

WHEELBASE

980317

P 3x17

941319

BB 13x19x4

901504

SB M5x4

980263

P 2.5x13

940814

BB 8x14x4

Use HUDY Ball-Bearing Grease for servicing:

#106220 - Standard #106221 - Extra #106222 - Premium

➊

➋

ASSEMBLED VIEW

L=R

➌

➍

➑

➐

➏

➍

➎

4. REAR SUSPENSION

35 1301 XB808 BODY POSTS 35 2631 ADJ. TURNBUCKLE M5 L/R 64 MM - HUDY SPRING STEEL (2) 35 3131 XB808 REAR UPPER INNER CAMBER LINK BALL JOINT (2) 35 3152 XB808 REAR UPPER OUTER CAMBER LINK BALL JOINT (2) 35 3160 MOUNTING BALL 6.8 (4) 35 3170 PIVOT BALL 6.8 (4) 35 3351 XB808 COMPOSITE REAR HUB CARRIER 35 3370 XB808 SET OF COMPOSITE REAR HUB CARRIER SHIMS 35 3520 REAR WING POSTS 35 3559 COMPOSITE REAR WING MOUNT BRACE (2) 35 5211 XB808 CVD DRIVE AXLE - HUDY SPRING STEEL™ 35 5221 XB808 CVD UNIVERSAL DRIVE SHAFT - HUDY SPRING STEEL™ 35 5237 XB808 CVD DRIVE SHAFT COUPLING - HUDY SPRING STEEL™ 35 5250 ALU WHEEL AXLE - HARD COATED (2)

35 7331 XB808 REAR LOWER OUTER PIVOT PIN SCREW 3MM (2)

90 1504 HEX SCREW SB M5x4 (10) 90 2310 HEX SCREW SH M3x10 (10) 90 2316 HEX SCREW SH M3x16 (10) 90 2318 HEX SCREW SH M3x18 (10) 90 2320 HEX SCREW SH M3x20 (10) 90 2322 HEX SCREW SH M3x22 (10) 90 5314 SCREW PHILLIPS 3.0x14 (10) 94 0814 HIGH-SPEED BALL-BEARING 8x14x4 BLUE COVERED (2) 94 1319 HIGH-SPEED BALL-BEARING 13x19x4 BLUE COVERED (2) 96 0030 NUT M3 (10) 98 0263 PIN 2.5x13 (10) 98 0317 PIN 3x17 (10)

BAG

L=R

980317

355250

901504

353370

902322

941319

960030

902320

905314

960030

902320

353520

353559

352631

353160

353170

960030

351301

902318

960030

902310

902316

355211

355237

357331

355221

980263

353520

905314

940814

Ensure that the rear upright moves freely. If it does not move freely, use sandpaper to thin both wheelbase adjustment shims.

Shims for wheelbase

adjustment

L=R

Graphite Grease

(HUDY #106210)

2mm

Check for free movement

353152

353131

353351

To tighten the setscrew you can also use HUDY 17mm Wheel Nut Tool #107570

3x17

2.5x13

8x14x4

13x19x4

Follow the TECH TIP on page 5 for drive shaft pin servicing

Do not overtighten the self-locking nut. Overtightening may result in suspension binding.

(HUDY #107633)

If the rear upright does not move freely, use a HUDY Arm Reamer to resize the hole.

ARM REAMER

2mm

OFFSET WHEEL AXLES

#355250 0mm (STANDARD) #355251 +1mm

(OPTION)

#355252 +2mm

(OPTION)

2.5mm

Page 15

REAR SUSPENSION

CAMBER

ROLL CENTER

WING ANGLE

902322

SH M3x22

902316

SH M3x16

960030

N M3

905314

SP 3x14

960030

N M3

902318

SH M3x18

902320

SH M3x20

902310

SH M3x20

Follow the TECH TIP on page 5 to install the pivot balls

DETAIL

Use tools to tighten as shown

INITIAL POSITIONS

Right thread Left thread Right threadLeft thread

37.5 mm

INITIAL POSITIONS

RIGHT THREAD

LEFT THREAD

3x16

3x22

3x18

3x10

3x20

NOTE ORIENTATION Adjustment block towards outside

3x14

37.5 mm

NOTE ORIENTATION Adjustment block towards outside

11223

RIGHT THREAD

LEFT THREAD

Follow the TECH TIP on page 5 to install the pivot balls

For stiffer wing mounting use optional alu wing mount brace #353550.

Page 16

KICK-UP

ROLL CENTER

909395

SS 3.5x45

909372

SS 3.5x22

5. FRONT SUSPENSION

33 3450 ANTI-ROLL BAR BALL JOINT 5.8 MM (2) 35 2002 XB808 DIFF BULKHEAD BLOCK SET FRONT/REAR 35 2114 XB808 COMPOSITE FRONT LOWER SUSPENSION ARM 35 2302 XB808 COMPOSITE FRONT LOWER SUSP. HOLDERS SET 35 2317 XB808 STEEL SUSP. HOLDER - FRONT - LASER CUT 35 2460 PIVOT BALL 5.8 (10) 35 2470 BALL JOINT 5.8 (8) 35 2484 XB808 FRONT ANTI-ROLL BAR 2.4MM 35 3371 XB808 SET OF COMPOSITE LOWER ARM SHIMS 35 7213 XB808 LOWER INNER PIVOT PIN SCREW 4MM (2)

BAG

909372

960040

902318

352114

903308

353371

901408

901303

333450

352470

901312

352460

901305

352002

352484

352302

357213

909395

352302

3.5x22

3.5x45

FRONT VIEW

The composite suspension holders feature preset optimum geometry 0° kick-up which with the combination of the 10° angled chassis creates total 10° kick-up. Use optional adjustable suspension holders for further geometry adjustment.

352317

FRONT ANTI-ROLL BARS

#352480 2.0mm

(OPTION)

#352482 2.2mm

(OPTION)

#352484 2.4mm (STANDARD

)

#352486 2.6mm

(OPTION)

#352488 2.8mm

(OPTION)

REAR VIEW

Do not overtighten the screws. Overtightening may result in composite suspension holder deformation.

Page 17

DOWNSTOP WHEELBASE

ANTI-ROLL BAR

FRONT SUSPENSION

901408

SB M4x8

901312

SB M3x12

901303

SB M3x3

902318

SH M3x18

903308

SFH M3x8

901305

SB M3x5

960040

N M4

➊

➋

➌

➍

3x5

3x8

3x3

3x18

L=R

Loosen the 3x5 setscrew if the antiroll bar does not turn freely

1.5mm

6mm

Follow the TECH TIP on page 5 to install the pivot balls

FRONT ARM

L=R

Step check for free movement

➊

STEP DETAIL

➍

(HUDY #107634)

ARM REAMER

L=R

0mm

2mm

3x12

Step

➊

If the suspension arms do not move freely, use a HUDY Arm Reamer resize the holes.

Do not overtighten the self-locking nut. Overtightening may result in suspension binding.

2mm

4x8 Downstop screw

Ensure there is a little play

DETAIL

Ensure there is a little play

L=R

2mm

DOWNSTOP SETTING

Page 18

CASTER

TRACK WIDTH

902414

SH M4x14

Use HUDY Ball-Bearing Grease for servicing:

#106220 - Standard #106221 - Extra #106222 - Premium

➊

➋

➊

980317

P 3x17

941319

BB 13x19x4

901504

SB M5x4

980263

P 2.5x13

940814

BB 8x14x4

6. FRONT SUSPENSION

35 2151 XB808 FRONT UPPER ARM BALL JOINT (2) 35 2181 XB808 STEEL ARM BUSHING (2) 35 2212 XB808 COMPOSITE CASTER BLOCK 10° RIGHT 35 2222 XB808 COMPOSITE CASTER BLOCK 10° LEFT 35 2252 XB808 COMPOSITE STEERING BLOCK RIGHT 35 2262 XB808 COMPOSITE STEERING BLOCK LEFT 35 2299 XB808 STEEL STEERING BUSHING (2) 35 2621 ADJ. TURNBUCKLE M5 L/R 58 MM - HUDY SPRING STEEL (2) 35 3160 MOUNTING BALL 6.8 (4) 35 3170 PIVOT BALL 6.8 (4) 35 5211 XB808 CVD DRIVE AXLE - HUDY SPRING STEEL™ 35 5221 XB808 CVD UNIVERSAL DRIVE SHAFT - HUDY SPRING STEEL™ 35 5237 XB808 CVD DRIVE SHAFT COUPLING - HUDY SPRING STEEL™

35 5250 ALU WHEEL AXLE - HARD COATED (2)

90 1504 HEX SCREW SB M5x4 (10) 90 2316 HEX SCREW SH M3x16 (10) 90 2325 HEX SCREW SH M3x25 (10) 90 2414 HEX SCREW SH M4x14 (10) 90 2418 HEX SCREW SH M4x18 (10) 94 0814 HIGH-SPEED BALL-BEARING 8x14x4 BLUE COVERED (2) 94 1319 HIGH-SPEED BALL-BEARING 13x19x4 BLUE COVERED (2) 96 0030 NUT M3 (10) 98 0263 PIN 2.5x13 (10) 98 0317 PIN 3x17 (10)

BAG

353170

352621

902316

➎

➍

➏

➐

➑

Graphite Grease

(HUDY #106210)

Marked “R“

353160

352151

960030

902418

901504

902418

960030

352181

355221

980263

902414

355237

355211

941319

352252

352299

940814

980317

355250

352212

Marked “R“

➌

352151

902325

352222

352262

3x17

2.5x13

8x14x4

13x19x4

To tighten the setscrew you can also use HUDY 17mm Wheel Nut Tool #107570

Follow the TECH TIP on page 5 for drive shaft pin servicing

CASTER BLOCKS

#352212 10° - RIGHT

(STANDARD)

#352213 12° - RIGHT

(OPTION)

#352214 14° - RIGHT

(OPTION)

#352222 10° - LEFT

(STANDARD)

#352223 12° - LEFT

(OPTION)

#352224 14° - LEFT

(OPTION)

OFFSET WHEEL AXLES

#355250 0mm (STANDARD) #355251 +1mm

(OPTION)

#355252 +2mm

(OPTION)

DO NOT

OVERTIGHTEN

➌

DO NOT OVERTIGHTEN

The standard caster block features 10° caster angle and together with the 10° angle of the chassis creates a total 20° caster.

Marked “L“

ASSEMBLED VIEW

Check for free movement

2.5mm

Page 19

CAMBER

ROLL CENTER

902418

SH M4x18

902325

SH M3x25

902316

SFH M3x16

960030

N M3

➊

➋

➌

FRONT SUSPENSION

L=R

INITIAL POSITION

L=R

DO NOT OVERTIGHTEN

RIGHT THREAD

LEFT THREAD

DETAIL

Use tools to tighten as shown

NOTE ORIENTATION Adjustment block towards outside

3x16

3x25

NOTE ORIENTATION

Left threadRight thread

Left thread

Right thread

Adjustment block towards outside

Follow the TECH TIP on page 5

to install the pivot balls

RIGHT THREAD

LEFT THREAD

RIGHT ASSEMBLY

LEFT ASSEMBLY

Check for free movement

Follow the TECH TIP on page 5

to install the pivot balls

36.5 mm

Page 20

903412

SFH M4x12

FRONT & REAR ASSEMBLY

35 1102 XB808 ALU CHASSIS - HARDCOATED SWISS 7075 T6 (3MM) 35 1200 FRONT & REAR BUMPER - V2 35 3088 XB808 COMPOSITE REAR BRACE

90 2312 HEX SCREW SH M3x12 (10) 90 3312 HEX SCREW SFH M3x12 (10) 90 3412 HEX SCREW SFH M4x12 (10) 96 0030 NUT M3 (10)

BAG

902312

960030

903412

903312

903412

351200

351102

353088

960030

Page 21

903312

SFH M3x12

902312

SH M3x12

903412

SFH M4x12

960030

N M3

FRONT & REAR ASSEMBLY

DETAIL

SH 3x12

SFH 3x12

Page 22

SERVO SAVER

903308

SFH M3x8

940610

BB 6x10x3

Follow the TECH TIP on page 5 to protect graphite parts

7. STEERING

30 3122 ALU SHIM 3x6x1.0MM (10) 30 3123 ALU SHIM 3x6x2.0MM (10) 35 1301 XB808 BODY POSTS 35 1349 XB808 COMPOSITE UPPER PLATE 35 2089 COMPOSITE FRONT BRACE - V2 35 2501 XB808 SERVO SAVER COMPLETE SET 35 2511 XB808 COMPOSITE SERVO SAVER 35 2572 XB808 GRAPHITE STEERING PLATE 35 2576 XB808 STEERING PLATE BUSHING (2) 35 2611 ADJ. TURNBUCKLE M4 L/R 51 MM - HUDY SPRING STEEL (2) 35 2652 XB808 BALL STUD 6.8MM (4) 35 2664 XB808 COMPOSITE STEERING BALL JOINT 6.8MM (2) 35 2665 XB808 COMPOSITE RELIEF STEERING BALL JOINT 6.8MM (2)

90 2308 HEX SCREW SH M3x8 (10) 90 2310 HEX SCREW SH M3x10 (10) 90 3308 HEX SCREW SFH M3x8 (10) 90 3310 HEX SCREW SFH M3x10 (10) 90 3312 HEX SCREW SFH M3x12 (10) 90 3314 HEX SCREW SFH M3x14 (10) 90 3318 HEX SCREW SFH M3x18 (10) 90 3320 HEX SCREW SFH M3x20 (10) 90 3410 HEX SCREW SFH M4x10 (10) 94 0610 HIGH-SPEED BALL-BEARING 6x10x3 BLUE COVERED (2) 96 0030 NUT M3 (10) 96 1032 WASHER S 3.2 (10)

BAG

5~6mm

INITIAL PRELOAD SETTING

CLEANER

For servicing use

Bearing Oil

(HUDY #106230)

940610

902310

903314

960030

903308

352501

903318

352665

352652

960030

352572

303122

352652

352089

903320

352511

902308

903310

960030

903312

903318

352665

352652

960030

352611

352511

352576

352501

940610

352501

903410

351301

351349

352664

903320

352664

303123

step

961032

Page 23

ACKERMANN BUMP STEER

TOE-IN

903314

SFH M3x14

903410

SFH M4x10

903310

SFH M3x10

903312

SFH M3x12

960030

N M3

90238

SH M3x18

902310

SH M3x10

960030

N M3

903320

SFH M3x20

903318

SFH M3x18

303122

SHIM 3x6x1

303123

SHIM 3x6x2

961032

S 3.2

STEERING

INITIAL POSITION

Follow the TECH TIP on page 5 to install the pivot balls

RIGHT THREAD

LEFT THREAD

32 mm

4x10

SFH 3x12

SFH

3x10

SFH

3x14

3x10

3x8

2mm

alu shim

1mm

alu shim

3x18

3x20

NOTE ORIENTATION

Adjustment block towards outside

Left threadRight thread Left thread Right thread

NOTE ORIENTATION Adjustment block towards outside

step

Check for free movement

Follow the TECH TIP on page 5 to install the pivot balls

RIGHT THREAD

LEFT THREAD

Check for free

movement

Page 24

902316

SH M3x16

8. CENTER DIFF & BRAKE

Fibre pad (Ferodo)

BAG

Steel pad

F=R

35 4012 XB808 CENTER DIFF MOUNTING PLATE SET 35 4041 XB808 ALU BRAKE CAM POST & ROD (2+2) HARD COATED 35 4058 XB808 COMPOSITE CENTER DIFF MOUNTING PLATE 35 4110 VENTILATED BRAKE DISK - LASER CUT - PRECISION-GROUND 35 4120 STEEL BRAKE PAD - LASER CUT (4) 35 4130 BRAKE PAD FERODO (4)

90 1304 HEX SCREW SB M3x4 (10) 90 2316 HEX SCREW SH M3x16 (10) 90 2330 HEX SCREW SH M3x30 (10) 90 3308 HEX SCREW SFH M3x8 (10) 90 3412 HEX SCREW SFH M4x12 (10)

Fibre pads together

Temporarily insert brake disk between pads to set correct gap

0.5 mm

354120

355011 CENTER DIFF

354110

354130

354041

354058

903308

901304

354041

902330

Roughen steel plates with

sandpaper before gluing

fibre pads

ROUND HOLE

OVAL HOLE

NOTE

ORIENTATION

NOTE

ORIENTATION

354012

902316

354012

903412

902316

Fibre pad (Ferodo)

Steel pad

NOTE ORIENTATION

ROUND HOLE

OVAL HOLE

DETAIL

2x 2x

903308

Page 25

901304

SB M3x4

903308

SFH M3x8

902330

SH M3x30

903412

SFH M4x12

903308

SFH M3x8

CENTER DIFF & BRAKE

NOTE ORIENTATION

Before inserting 3x30 long screws, loosen the four flat-head screws in the upper plate by 1/2 turn. Tighten all screws after assembly.

1mm

Insert brake disk between brake pads

DETAIL

NOTE ORIENTATION OF ALL PARTS

Page 26

903310

SFH M3x10

960030

N M3

35 1151 XB808 CHASSIS SIDE GUARDS L+R 35 8526 XB808 CLUTCH BELL 16T WITH OVERSIZED 5x12x4MM BALL-BEARINGS 35 8531 FLYWHEEL 35 8540 FLYWHEEL COLLAR (OPTION) 35 8550 FLYWHEEL NUT - HUDY SPRING STEEL™ 35 8561 ALU CLUTCH SHOES - LIGHT 1.71g - CNC MACHINED (3) 35 8585 CLUTCH SPRINGS - HARD (3) 35 8600 FUEL TANK 120CC - SET 35 8680 FUEL TANK MOUNTING POST (2) 35 8685 FUEL TANK MOUNTING GROMMET (4) 35 8711 XB808 ALU ENGINE MOUNT - CNC MACHINED (L+R) 35 8722 EXHAUST WIRE MOUNT SET - LONG 35 9051 XB808 CLUTCH BELL BALL-BEARING 5x12x4 (2)

90 1405 HEX SCREW SB M4x5 (10) 90 2308 HEX SCREW SH M3x8 (10) 90 2316 HEX SCREW SH M3x16 (10) 90 3310 HEX SCREW SFH M3x10 (10) 90 3410 HEX SCREW SFH M4x10 (10) 90 8308 HEX SCREW (CAP HEAD) 3x8 (10) 90 8312 HEX SCREW (CAP HEAD) 3x12 (10) 91 1410 HEX SCREW FLANGED SH M4x10 (10) 96 0030 NUT M3 (10) 96 1025 WASHER S 2.5 (10) 96 2050 WASHER S 5x10x1.0 (10) 96 4073 WASHER S 7x10x0.2 (10) 96 4074 WASHER S 7x10x0.3 (10) 96 4075 WASHER S 7x10x0.5 (10)

BAG

L=R

Follow the order of steps

9. FUEL TANK & ENGINE

902316

358600

358685

358680

903310

902316

908312

Manifold (not included)

Pipe (not included)

Screw

(not included)

358711

Engine (not included)

964073 964074 964075

358540 (OPTION)

358550

358585

359051

358526

358531

961025

358561

902308

358722

960030

962050

359051

903410

358722

903310

960030

➊

➋

➊

➋

901405

960030

903310

351151

911410

908308

351151

CLUTCHBELLS

#358525 15T (OPTION) #358526 16T (STANDARD) #358527 17T (OPTION) #358528 18T (OPTION)

Page 27

GEARING

CLUTCH

902316

SH M3x16

911410

SHF M4x10

908308

SCH M3x8

908312

SCH M3x12

359051

BB 5x12x4

961025

S 2.5

962050

S 5x10x1

901405

SB M4x5

902308

SH M3x8

903410

SFH M4x10

960030

N M3

964073

S 7x10x0.2

964074

S 7x10x0.3

964075

S 7x10x0.5

903310

SFH M3x10

7x10x0.2 / 0.3 / 0.5

3x8

5x10

2.5

Adjust engine position to achieve proper gear mesh

Use appropriate shims to achieve proper clutchbell endplay

Note the orientation of the clutch shoes. The short side of spring must be in the groove of the flywheel nut.

CUT AWAY FOR MUFFLER OUTLET

Make 3mm holes as appropriate to mount muffer support/protector. Use HUDY Body Reamer #107600

11~11.2 mm

FUEL TANK & ENGINE

It is very important that your XB808 has properly-adjusted gear mesh. Adjust the gear mesh so there is adequate (or slightly larger) space between the spur gear and clutchbell teeth. Adjust the gear mesh by sliding the engine mounts in the slots of the chassis. You should be able to rock one gear back and forth slightly while holding the other one firmly. Be sure to check the gear mesh all the way around the spur gear. Tighten the screws once the engine alignment and gear mesh are correct, and then re-check the gear mesh to ensure the engine mounts did not move.

DETAIL

Tighten the clutch nut using HUDY tool #107581

Hold the flywheel using HUDY Flywheel Tool #182010

4x10

3x16

3x10

DETAIL

4x10

4x5

3x8

DETAIL

3x12

Please note that the engine is not parallel with the chassis centerline, so that the clutchbell engages the spur gear at a slight angle. This is correct and will not have any effect on handling, performance, or lifespan of any parts.

DETAIL

Use the cone included with your engine, or use optional XRAY cone #358540

NOTE ORIENTATION

Not using these shims may

cause that the flywheel pins will press out after some time.

Although the XB808 clutch

bearings are oversized and have a longer lifespan than regular-sized ball-bearings, the bearings must still be regularly serviced and replaced when worn out.

IMPORTANT

ANGLED ENGINE POSITION

EXTREMELY IMPORTANT

CORRECT

Page 28

902312

SH M3x12

10. RADIO CASE

BAG

30 2615 ADJ. TURNBUCKLE M3 L/R 30 MM - SPRING STEEL (2) 30 6310 ANTENNA TUBE (2) 30 9400 BODY CLIP (8) 35 2460 PIVOT BALL 5.8 (10) 35 2670 SERVO BALL JOINT 5.8MM (4) 35 6001 XB808 RADIO CASE SET 35 6050 BATTERY CABLE WITH SWITCH (OPTION) 35 6111 XB808 GRAPHITE RADIO PLATE 35 6120 STEERING SERVO MOUNT - SET

35 6200 BRAKE/THROTTLE ARMS & STEERING SERVO ARMS - SET 38 9135 CONNECTING CABLE RECEIVER/BATT. PACK (OPTION) 90 2308 HEX SCREW SH M3x8 (10) 90 2310 HEX SCREW SH M3x10 (10) 90 2312 HEX SCREW SH M3x12 (10) 90 3308 HEX SCREW SFH M3x8 (10) 90 3310 HEX SCREW SFH M3x10 (10) 90 7206 SCREW PHILLIPS 2x6 (10) 96 0030 NUT M3 (10)

LEFT

THREAD

RIGHT

THREAD

Ball-joints must be 90° to each other

USE APPROPRIATE SERVO ARM:

K - KO Propo, JR, Sanwa, Multiplex H - Hitec F - Futaba

Receiver battery (not included)

306310

Servo Grommet (not included)

356001

Throttle Servo (not included)

356120

903308

Steering Servo (not included)

Servo Grommet (not included)

Servo Screw

(not included)

Follow the TECH TIP on page 5 to install the pivot balls

Receiver (not included)

20.5 mm

907206

903308

356001

903310

356200

960030

352670

352460

902312

309400

902310

960030

902310

356111

902308

NOTE ORIENTATION

356120

903308

902312

302615

Left threadRight thread

step

Follow the TECH TIP on page

5 to install the pivot balls

Page 29

903308

SFH M3x8

907206

SP M2x6

903308

SFH M3x8

903310

SFH M3x10

960030

N M3

902308

SH M3x8

902310

SH M3x10

903308

SFH M3x8

Route steering servo lead behind the personal transponder

NOTE ORIENTATION

902310

SH M3x10

Personal transponder (not included)

Ensure the throttle servo is not touching the chassis. If necessary

use shims to alter the height of the servo.

Follow the TECH TIP on page

5 to protect graphite parts

DETAIL

RADIO CASE

Route servo leads as shown

Route receiver wire through mounting hole in top plate and through antenna tube.

KO PROPO

SANWA

FUTABA

Use appropriate servo stands

Servo screw

NOTE ORIENTATION

Route servo leads through this gap. Seal gap with silicone after leads are all routed and plugged into receiver.

Note orientation of servo arm when servo is at neutral

Servo stands

Use foam to cushion the inside of the radio case so the receiver and battery cannot vibrate or move.

SH 3x8

3x10

#356050 Option switch

3x8

2x6

SH 3x10

SH 3x12

SFH 3x10

SFH 3x8

step

SH 3x8

SFH 3x8

Page 30

SHOCK DAMPING

971035

O 3.5x2

960025

N M2.5

358040

S 2.5x6x0.5

970100

O 10x1.5

INCORRECT

CORRECT

BAGS

11.1

35 2460 PIVOT BALL 5.8 (10) 35 8014 XB808 COMPOSITE SHOCK PARTS 35 8015 XB808 COMPOSITE SET OF SHIMS FOR SHOCKS 1 & 2.5 MM 35 8038 XB808 COMPOSITE SHOCK 6-HOLE PISTON SET 35 8040 HARDENED SHOCK SHIMS (4) 35 8041 XB808 STEEL SHOCK BUSHING (2) 35 8042 XB808 COMPOSITE SHOCK BUSHING & SHIM (2+2) 35 8052 XB808 ALU SHOCK CAP NUT - HARD COATED (2) 35 8062 XB808 FELT SHIM FOR ALU SHOCK NUT (4) 35 8082 XB808 SHOCK RUBBER MEMBRANE (4) 35 8122 XB808 ALU FRONT SHOCK BODY - HARD COATED (2)

35 8140 XB808 ALU SHOCK BODY NUT (2) 35 8150 XB808 ALU SHOCK BODY ADJ. NUT (2) 35 8168 XB808/XT8 FRONT SHOCK SHAFT (2) 35 8184 XRAY XB808 FRONT SPRING SET C=0.75 - SILVER (2) 35 8222 XB808 ALU REAR SHOCK BODY - HARD COATED (2) 38 8261 XB808 REAR SHOCK SHAFT (2) 38 8284 XRAY XB808 REAR SPRING SET C=0.53 - SILVER (2) 96 0025 NUT M2.5 (10) 97 0100 O-RING 10 x 1.5 (10) 97 0180 O-RING 18 x 1.8 (10) 97 1035 SILICONE O-RING 3.5x2 (10)

11. SHOCK ABSORBERS

FRONT SHOCKS (SHORT)

PISTONS DETAIL

FRONT SHOCK

11.1

BAG BAG

REAR SHOCK

CORRECT

INCORRECT

There are two different thickness shims, use them as shown. Use the same procedure when building both front and rear shocks.

REAR SHOCKS (LONG)

358041

358261

352460

358168

358042

358082

960025

358040

358222

358122

970100

971035

970180

358015

358062

358140

358150

358284

358184

358052

358038

358014

FRONT SPRINGS

#358182 C=0.65 - White (OPTION) #358183 C=0.70 - Grey (OPTION) #358184 C=0.75 - Silver (STANDARD) #358185 C=0.80 - Grey-Blue (OPTION) #358186 C=0.86 - Blue (OPTION) #358187 C=0.92 - Violet (OPTION) #358188 C=0.98 - Purple (OPTION)

REAR SPRINGS

#358282

C=0.47 -

White (OPTION)

#358283

C=0.50 -

Grey (OPTION)

#358284

C=0.53 - Silver

(STANDARD)

#358285

C=0.57 -

Grey-Blue (OPTION)

#358286

C=0.61 - Blue

(OPTION)

#358287

C=0.65 - Violet

(OPTION)

#358288

C=0.70 - Purple

(OPTION)

1.5mm pistons

1.3mm pistons

1.5mm

1.4mm

1.3mm

1.5mm

1.4mm

1.3mm

DETAIL

DO NOT OVERTIGHTENTIGHTEN GENTLY

The self-locking nut is gently tightened. The piston remains undistorted and fits inside the shock body perfectly, ensuring smooth movement of the piston.

The self-locking nut is overtightened, causing distortion of the piston. This will negatively affect the free movement of the piston in the shock body.

(LONG)(SHORT)

O-ring

Thin Shim

O-ring

Felt Shim

Thick Shim

Grip the shock rod at top of exposed threads with side cutting pliers. Be careful not to damage the shock rod.

Page 31

970180

O 18x1.8

INCORRECT

CORRECT

INCORRECT

CORRECT

FRONT SHOCKS

REAR SHOCKS

1~1.5 mm

Gently push the shock shaft completely into the shock body. Excess oil will flow through the hole in the shock cap.

Keep the shock shaft pushed in the shock body and tighten the shock cap completely. The rebound will be at approximately 0%.

➐

HALF TIGHTEN TIGHTEN FULLY

100%

Follow the steps below to set the shock rebound to the default setting of 0%.

Grip the shock rod at top of exposed threads with side cutting pliers. Be careful not to damage the shock rod.

SHOCK ABSORBERS

DETAIL

Follow the TECH TIP on page

5 to install the pivot balls

FRONT SHOCKS

REAR SHOCKS

FRONT (SHORT) Oil

600cSt

REAR (LONG) Oil

350cSt

1.5mm PISTON

SHORT SHOCK BODY

SHORT SHOCK ROD

1.3mm PISTON

LONG SHOCK BODY

LONG SHOCK ROD

EXTREMELY IMPORTANT

Do not push the shock rod straight through the lower shock body assembly; O-ring damage may result.

Twist the shock rod through the lower shock body assembly.

Extend the shock shaft completely. Fill the shock body with the shock oil. For the FRONT shocks (short) use 600cSt oil. For the REAR shocks (long) use 350cSt oil.

Move the shock shaft up and down a few times to release the air bubbles trapped beneath the piston.

Orient the filled shock vertically for several minutes with the shock shaft fully extended. The remaining air bubbles will release.

Install the shock membrane into the groove in the upper shock cap.

Gently place the shock cap assembly onto the filled shock body. Excess oil will spill from the shock. Screw the shock cap onto the body by only a few turns.

➊➋ ➌➍ ➎➏

DETAIL

3~5x

UP & DOWN

50%

DEFAULT SHOCK REBOUND SETTING 0% (LOW REBOUND)

Page 32

SPRING RATE

SELECTION

Fill the shock body with shock oil up to the top. Make sure to use same viscosity shock oil as is in the shock.

➋

Orient the filled shock vertically for several minutes with the shock shaft fully extended. The remaining air bubbles will release.

Gently place the shock cap assembly onto the filled shock body. Excess oil will spill from the shock.

➌

➍

50%

HALF TIGHTEN

Push the shock shaft 50% into the shock body. Excess oil will bleed thgrough the hole in the shock cap.

Keep the shock shaft pushed 50% into the shock body and tighten the shock cap completely. The rebound will be at approximately 50%.

➎

Gently place the shock cap assembly onto the filled shock body. Keep the shock shaft extended 100% from the shock body and tighten the shock cap completely. The rebound will be at approximately 100%.

➎➐

TIGHTEN FULLY

100%

50%

The default shock rebound setting is 0% (as described on page 31). Alternatively, you may set the shock rebound setting to 50% or 100% as described below. Remove the shock springs before performing shock rebound adjustment.

Fill the shock body with shock oil up to the top. Make sure to use same viscosity shock oil as is in the shock.

➋

Orient the filled shock vertically for several minutes with the shock shaft fully extended. The remaining air bubbles will release.

➌

TIGHTEN FULLY

100%

50%

100%

SHORT FRONT SHOCKS

LONG REAR SHOCKS

IMPORTANT! Both front shocks must be the same overall length.

IMPORTANT! Both rear shocks must be the same overall length.

FRONT SHOCKS

REAR SHOCKS

SHORT SPRING

LONG SPRING

SETTING THE SHOCK REBOUND TO

50% (MEDIUM REBOUND)

SHOCK ABSORBERS

➊

Extend the shock shaft completely and remove the shock cap.

REMOVE SHOCK CAP

SETTING THE SHOCK REBOUND TO 100% (HIGH REBOUND)

ALTERNATE SHOCK REBOUND SETTING (50% AND 100%)

➊

Extend the shock shaft completely and remove the shock cap.

REMOVE SHOCK CAP

REAR SHOCK PRELOAD

9mm

FRONT SHOCK PRELOAD

11mm

Page 33

FRONT SHOCK

902319

SH M3x18

LEFT thread

902325

SH M3x25

960030

N M3

902318

SH M3x18

12. FINAL ASSEMBLY

BAG

35 3510 REAR WING 35 5260 WHEEL NUT - HARD COATED (2) 35 6200 BRAKE/THROTTLE ARMS & SERVO ARMS - SET 35 6401 XB808 BRAKE/THROTTLE SYSTEM - SET 35 6510 CLOSED BALL JOINT 3.9 (4) 35 8045 SHOCK PIVOT BALL WITH HEX (2) 35 8102 XB808 FRONT SHOCK ABSORBERS COMPLETE SET (2) 35 8202 XB808 REAR SHOCK ABSORBERS COMPLETE SET (2) 35 8810 AIR FILTER ELBOW 35 8820 AIR FILTER BODY & CAP 35 8840 AIR FILTER FOAM & OIL 35 8930 FUEL FILTER MOUNT & TUBING HOLDERS 35 8950 SILICONE TUBING 1M (2.4 x 5.5MM) 35 9400 BODY CLIP (10)

35 9703 XRAY XB808 BODY FOR 1/8 OFF ROAD BUGGY 35 9800 WHEELS STARBURST - WHITE (4) (OPTION)

90 1303 HEX SCREW SB M3x3 (10) 90 2308 HEX SCREW SH M3x8 (10) 90 2310 HEX SCREW SH M3x10 (10) 90 2318 HEX SCREW SH M3x18 (10) 90 2319 HEX SCREW SH M3x18 - LEFT THREAD (10) 90 2325 HEX SCREW SH M3x25 (10) 90 3312 HEX SCREW SFH M3x12 (10) 90 3314 HEX SCREW SFH M3x14 (10) 96 0030 NUT M3 (10) 96 1022 WASHER S 2.2 (10)

356401

356510

902310

356200

356401

961022

358950

356401

353510

358840

358810

358820

358840

358820

902308

902318

902319

358045

Tires (not included)

358202

960030

358045

355260

902325

960030

358102

358930

902325

903312

359400

3x18

3x25

FRONT SHOCKS (SHORT)

INITIAL POSITIONS

355260

Inserts (not included)

359800 (not included)

901303

356401

903314

901303

961022

358950

356401

On the front right arm use the SILVER M3x18 screw - this screw has

LEFT THREAD

Use STANDARD M3x18 screw

UPPER

LOWER

UPPER

LOWER

L=R

INITIAL POSITIONS

Page 34

REAR SHOCK

960030

N M3

901303

SB M3x3

902310

SH M3x10

903314

SFH M3x14

961022

S 2.2

902319

SH M3x18

LEFT thread

902325

SH M3x25

902318

M3x18

FINAL ASSEMBLY

3x18

REAR SHOCKS (LONG)

3x10

Brake rod

Throttle rod

Thread brake rods into plastic pivots until flush with outer end

3x14

SILICONE

TUBING

10mm

Brake rod

Tighten screw until snug. Pivots should move freely.

CUTAWAY VIEW

Use servo horn to match your servo

K - KO Propo F - Futaba H - Hitec

Servo screw

(not included)

3x25

L=R

INITIAL POSITIONS

On the rear left arm use the SILVER M3x18 screw - this screw has LEFT THREAD

Use STANDARD M3x18 screw

SHORT

Ensure that the servo is in neutral position before attaching the servo horn.

OUTER

INNER

LOWER

UPPER

Always use UPPER shock position on front shocktower in combination with INNER hole on suspension arm.

Always use LOWER shock position on front shocktower in combination with OUTER hole on suspension arm.

Always use LOWER shock position on rear shocktower in combination with OUTER hole on suspension arm.

Always use UPPER shock position on rear shocktower in combination with INNER hole on suspension arm.

LOWER

UPPER

FRONT SHOCK POSITIONS

REAR SHOCK POSITIONS

UPPER

LOWER

UPPER

LOWER

OUTER

INNER

Clearance

Page 35

903312

SFH M3x12

960030

N M3

902308

SH M3x8

DETAIL

XRAY REAR WING

#353510 White (STANDARD) #353515 Black

(OPTION)

#353516 Orange

(OPTION)

#353518 Pink

(OPTION)

#353519 Yellow

(OPTION)

XRAY STARBURST WHEELS

#359800 White

(OPTION)

#359806 Orange

(OPTION)

#359808 Pink

(OPTION)

#359809 Yellow

(OPTION)

FINAL ASSEMBLY

Cut the silicone tube depending on engine and muffler. Use the plastic clips to hold the tubes together.

To tighten the setscrew you can also use HUDY 17mm Wheel Nut Tool #107570

Apply air filter oil and follow the engine instructions to service the air filter.

SILICONE TUBE MARKED AS GREEN = FROM FUEL TANK TO CARBURETOR

SILICONE TUBE MARKED AS RED = FROM MUFFLER TO FUEL TANK (TOP)

Keep fuel line away from bell and flywheel.

Page 36

BRAKE ADJUSTING KNOBS: Upper linkage - rear brake Lower linkage - front brake

cca 1mm

• Turn on the transmitter and receiver and set the engine control servo trim to the neutral position.

• Adjust the idle adjustment screw on the carburetor to open approx. 1mm.

• Adjust both the throttle linkage and brake linkages accordingly.

• DO NOT adjust the linkage with the engine running.

NEUTRAL (IDLE)

FULL THROTTLE

• Adjust the servo-horn mounting position for the carburetor to open fully.

• Change the pivot mounting position on the servo horn in case the carburetor is not opening fully or if it is opening excessively. Or if available on the transmitter, adjust the throttle high end point.

BRAKE

• Adjust the adjustable collars so the brakes work smoothly.

• If the brakes apply too much or not enough, adjust the adjustable collars accordingly. Or if available on the transmitter, adjust the brake endpoint.

• To tighten brakes, turn collar to thread brake rod INTO pivot.

• To loosen brakes, turn collar to thread brake rod OUT of pivot.

ENGINE IDLING

0.5mm

ADJUST INDIVIDUAL LINKAGES SEPARATELY TO AVOID INTERFERING WITH THE OPERATION OF THE OTHERS

~1mm

ENGINE IDLING

IDLING ADJUSTMENT SCREW. Use to adjust the idle setting of the carburetor. Do not allow carburetor to close to less than 1mm.

Body Reamer (HUDY #107600)

DETAIL

THROTTLE LINKAGE ADJUSTMENT

➍

Before cutting and making holes on the body, put the unpainted body on the chassis to confirm the mounting position and location for holes and cutouts. Before painting, wash the inside of the body with mild detergent, and then rinse and dry thoroughly. Mask all windows. Apply paint masks as appropriate.

Paint the body using paints formulated for polycarbonate bodies. When the paint is dry, remove the masking. Carefully cut out the body using appropriate scissors or cutting tools. When you have finished cutting, peel off the external protective films.

➊

➋ ➌

➎ ➏ ➐ ➑

Ensure to make this rear body mount hole oval so in the case of chassis flex after a big jump the body mount will not tear up the hole.

Page 37

• Never modify the engine or muffler.

• Confirm the position of needle and idling before running. Be sure to run a new engine smoothly.

• Make sure the air filter is clean and oiled.

• Never run your engine without an air filter. Your engine can be seriously damaged if dirt and debris get inside the engine.

• For proper engine break-in, please refer to the manual that came with the engine.

• The engine may not start or run properly if the air filter is dirty, or choked with sand and dust.

• If the fuel pipe is choked or deteriorates, the engine may not start, and there is danger that fuel will leak out.

1. Make sure the transmitter and receiver batteries are fully charged.

Make sure that your transmitter and receiver are both on the same frequency. If you have a transmitter with multiple model memory, make sure you have selected the proper profile for your car.

3. Put the car on the starter box and keep the tires from touching the ground.

4. Turn on the transmitter.

5. Turn on the receiver in the car.

6. Make sure the steering servo and engine servos work normally and adjust them correctly.

7. Put fuel in the fuel tank, and close the cap securely.

8. Apply the glow igniter to the engine glowplug.

9. Push the model car onto the starter box to start the engine. (If the engine is new, follow the instruction manual and be sure to break in the new engine properly).

10. When the engine has started, remove the glow igniter.

11. Follow your engine break-in procedure and tune the engine as appropriate.

STARTING AND RUNNING THE ENGINE

Be sure to observe the following starting process. Failure to do so may cause the model car to start suddenly, which may lead to damage or unexpected accidents.

STOPPING THE ENGINE

Before you stop the engine, try to make sure the engine is at idle first. There are several ways to stop the engine:

• Use a rag to cover the exhaust tip. Be careful! The exhaust is extremely hot so use a thick rag and gloves.

• Pinch the fuel tubing to stop the flow of fuel to the carb. Be careful, this can make the motor run lean which can damage the motor.

• Put your hand over the air filter, or squeeze the air filter element to block the airflow.

• Press an object (such as a screwdriver handle or shoe) against the rotating flywheel to stop its rotation. Be very careful, and do not stick your hand or fingers near the rotating flywheel.

FINISHING OPERATIONS

1. Stop the engine.

2. Turn off the receiver in the car

3. Turn off the transmitter.

MAINTENANCE AFTER RUNNING

Take proper care of your car after running to keep it performing well, and take notice of any damage and wear.

1. Do not leave fuel in the tank.

2. Go outside to drain any residual fuel from the exhaust pipe.

3. Clean the car and remove all sand, mud, and other debris.

4. Use after-run oil in your engine after you have finished running for the day.

• For club racing, it is recommended to check the shocks for air inside before each race and only re-fill and bleed them if necessary. Before each race day, make sure you take the spring off of each shock, hold it up to your ear, and quickly compress the shock rod fully into the body while listening for any air making a “whistling” or “squishy” sound as it passes through the piston holes. If you hear any air, refill and bleed your shocks. For high-competition racing, it is recommended that the shocks be re-filled and bled before a large event.

• If building or pairing new shocks, always make sure they are the same length using a

shock length measuring tool and adjust the lower ball joints as needed.

• If installing new rubber bladders, carefully trim the thin excess rubber from the edges of their lips. Curved body scissors work the best.

• Regularly inspect the amount of dirt on the felt protector in the shocks (if present) and regularly replace with a new one.

• During regular shock operation, oil naturally gets on the shock shaft and drop-by-drop slightly gets out of the shock body. Shocks should be inspected regularly after each race, and oil replaced as required.

1. Remove the seals on both sides of the bearing (if present). If the seals bend a little and you can see a kink, carefully flatten the kink out by hand.

2. Spray the seals with motor cleaner and blow dry with compressed air.

3. Spray the bearing on both sides with motor cleaner.

4. Spin the bearing while it is still wet to dislodge any particles with the cleaner.

5. Spray the bearing on both sides again.

6. Blow both sides of the bearing dry with compressed air to make sure particles come out.

7. Hold the inner part of the bearing with my left thumb/forefinger and spin it to make sure it spins free without any abnormal vibrations or sounds.

8. Place one drop of bearing oil into each side of the bearing.

9. Replace both seals at the same time by lining them up on each side of the bearing and lightly pressing them in all the way around the bearings circumference with your thumb and forefinger. Do not press too hard or use any type of tool, such as a wrench tip, to push the blue seals in as they will push in too far, bend and cause drag.

If you spin test the bearing after you have re-oiled and sealed it, it will not spin freely for an extended period of time. The lightest of oils may allow it to spin for 1-2 seconds. This is normal and once you have mounted the bearings in the car again, the drive train will spin freely.

Make sure you use a motor cleaner that does not leave a residue after it dries as this may cause drag and wear in the bearings.

ENGINE OPERATION

PREPARING TO OPERATE THE ENGINE

SHOCK MAINTENANCE

The most important maintenance task for keeping consistent shock performance is refilling and bleeding them correctly. If built correctly, it will not be necessary to re-build them often. Replacing warped/hard rubber bladders and o-rings, scarred piston rods, or shaved/split/loose composite upper and lower ball joints are also important.

BEARING MAINTENANCE

Ball-bearings in an off-road car or truggy must be properly maintained for smooth operation and long lifespan.

Typically, the ball-bearings included in new cars are greased for highest lifespan and as such the drivetrain may not seem to be as free as with lightly-oiled ball-bearings. However, when the car is run the ball-bearings will become more free and the drivetrain will become very efficient.

There are several types of bearings discussed here: bearings which already come greased from the factory, bearings which must be lubricated using the HUDY Bearing Grease, and then there are also bearings in the steering system which need to be lubricated with HUDY Bearing Oil.

The following procedures are recommended to clean all of the bearings in your off-road car or truggy. For high-competition racing, we recommended doing this every 3-4 weeks, or before a major race.

MAINTENANCE

Page 38

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