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10

STEP 7:

T

o separ

ate the engine from the engine mount,

remo

v

e the f

our 3x8mm caphead machine scre

ws
.

* Note:

Y

ou will not need to remo

v

e the engine mount

for a basic reb

uild of the engine

.

Do remo

v

e the engine

mount if y

ou e

xchanging the engine under the Lif

etime

Engine Replacement Plan.

REB

UILDING 

THE ENGINE

STEP 1:

Unplug the b

lue wire from the glo

w plug.

Remo

v

e the

fuel line from the carb

uretor pressure fitting.

Disconnect the red and b

lac
k wires from the EZ-Star

t

motor

.

STEP 8:

Remo

ving the carb

uretor is not necessar

y to reb

uild

the engine

, unless y

ou intend to replace the inter

nal

bear

ings of the engine

.

Remo

v

e the carb

uretor b

y

loosening the 3mm loc

kn
ut and pulling the carb

uretor

str
aight up

.

Do not lose the r

ub
ber O-r

ing.

STEP 9:

Use the tip of a small scre

wdr

iv

er to remo

v

e the E-clip

which holds the clutch bell gear

.

STEP 10:

Remo

v

e the clutch bell gear and the clutch shoes

.

Note that there are tw

o 5x8mm 

T

eflon

®
w

ashers

, one

on each side of the clutch bell gear

.

Chec

k the clutch

shoes f

or e

xcessiv

e w

ear or

cr

ac
king around the pin

holes

.

If the clutch shoes

are w

or
n to the point that

the clutch spr

ing contacts

the clutch bell, then the

shoes m

ust be replaced.

STEP 11:

Gr
ip the flywheel with a pair

of pliers (loc

king pliers w

or

k

best).

Remo

v

e the clutch

adapter n

ut with a 10mm

deep soc

k

et.

Hold the

engine just abo

v

e y

our

w

or

kbench and tap the fly

-

wheel from behind with a

non-marr

ing hammer (plas

-

tic or w

ood).

Se
v

er

al easy b

lo

ws ma

y be necessar

y to

release the flywheel and split be

v

eled cone

.

STEP 12:

The flywheel and the split-be

v

eled 

cone should pull

smoothly

off of the cr

ankshaft.

STEP 2:

Remo

v

e the e

xhaust hangar bolt which secures the

tuned pipe to the chassis

.

Pull the tuned pipe from the

header

.

STEP 3:

Use a 2.5mm he

x dr

iv

er to remo

v

e the f

our engine

mount scre

ws from the bottom of the chassis

.

STEP 4:

Pull the engine out of the tr

uc
k.
Remo

v

e the y

ello

w

g

round wire from the engine mount.

No
w y

ou can

completely remo

v

e the engine

.

STEP 5:

Pull the engine from the chassis

.

T

ur
n

the engine so that the throttle linkage

to the carb

uretor will come out.

Remo

v

e the EZ-Star

t gearbo

x b

y

remo

ving the three 3x8mm roundhead

machine scre

ws
.

STEP 6:

Remo

v

e the 3x23mm roundhead machine scre

ws that

fasten the header to the engine

.

Carefully remo

v

e the

header to a

v

oid damaging the gask

et.

Summary of Contents for T-Maxx

Page 1: ...OPERATING INSTRUCTIONS MODEL 4910...

Page 2: ...se listed contact TRAXXAS at 1 888 TRAXXAS to find out if the fuel is safe for use with TRX engines FUEL BOTTLE Fuel is usually purchased by the gallon or quart so a smaller bottle with a dispensing t...

Page 3: ...FREQUENCY BAND The FREQUENCY band is the radio frequency that the transmitter uses to send signals to the model All Traxxas RTR models operate on a 27 MHZ FREQUENCY BAND CHANNEL The 27 MHZ FREQUENCY B...

Page 4: ...r weak batteries Turn the steering trim control on the transmitter to adjust the servo so that the front wheels are pointing straight ahead Check to be sure that the wheels do not turn more in one dir...

Page 5: ...until it is secured to the wheel 4 Allow the CA glue to completely cure before driving the vehicle NOTE The acetone in finger nail polish remover should dis solve any glue that may come in contact wit...

Page 6: ...malfunction with symptoms such as stalling inconsistent performance and fouled glow plugs Don t give up on it These are just break in pains that every new engine has to go through They will disappear...

Page 7: ...oes not shift into reverse check the following 1 IDLE SPEED The engine idle speed needs to be set as low as possible and still allow reliable running If the idle speed is set too high the T Maxx will...

Page 8: ...weight oil will give you the same dampening as a three hole piston with heavier oil We recommend using two hole pistons with a range of oil viscosities from 10W to 40W available from your hobby shop T...

Page 9: ...or the EZ Start connector DECALS You are now ready to apply the decals The decals have been die cut for your convenience Test the position of the decals before applying them to the body Once the decal...

Page 10: ...s If the clutch shoes are worn to the point that the clutch spring contacts the clutch bell then the shoes must be replaced STEP 11 Grip the flywheel with a pair of pliers locking pliers work best Rem...

Page 11: ...uid metal polish to buff the crankshaft journal to a bright smooth shine Rinse thoroughly with denatured alcohol and lube with after run oil STEP 24 Use the 1200 grit sandpaper and the liquid metal po...

Page 12: ...To assemble the connecting rod and piston place a drop of caster oil in the top end of the connecting rod Insert the wrist pin through the piston and the top of the connecting rod Secure the wrist pin...

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