13
STEP 15:
Remo
v
e the connecting rod and piston through the top
of the cr
ankcase
.
STEP 16:
To
remo
v
e the connecting rod from the piston, use a
shar
p-pointed tool to remo
v
e the small metal G-clip in
the side of the piston.
Do not re-use the old G-clip
.
When installing a ne
w connecting rod, use the sup-
plied ne
w G-clip
.
STEP 21:
Remo
v
e the cr
ankshaft b
y pulling it str
aight out of the
cr
ankcase
.
STEP 22:
The bear
ings are press-fit into the cr
ankcase
.
T
o
remo
v
e them, the cr
ankcase m
ust be heated with a
heat gun or torch.
The cr
ankcase will e
xpand with heat
and release the bear
ings
.
T
o a
v
oid the possibility of
bu
rns or other damage
, do not attempt remo
v
e the
bear
ings
.
Clean the bear
ings b
y flushing them with
denatured alcohol and then place one or tw
o drops of
after-r
un oil on the r
aces
.
STEP 23:
Bef
ore installing a ne
w connecting rod, y
ou can
increase connecting rod lif
e b
y polishing the cr
ank-
shaft jour
nal.
Use 1200 g
rit sandpaper to remo
v
e the
surf
ace scr
atches f
ollo
w
ed b
y liquid metal polish to
bu
ff the cr
ankshaft jour
nal to a br
ight, smooth shine
.
Rinse thoroughly with
T
raxxas Nitro
W
ash or dena-
tured alcohol.
Lube with after-r
un oil.
STEP 24:
Use the 1200 g
rit sandpaper and the liquid metal pol-
ish on the wr
ist pin also
.
Rinse thoroughly with dena-
tured alcohol and lube with after-r
un oil.
STEP 13:
Pull the slee
v
e str
aight up and out of the cr
ankcase
.
If
the slee
v
e will not mo
v
e
, rotate the cr
ankshaft until the
slee
v
e pushes up
.
STEP 14:
Rotate the cr
ankshaft to bottom dead center
.
Lightly
gr
ab the connecting rod with a pair of needlenose pli-
ers and gently pull it off of the cr
ankshaft jour
nal.
STEP 17:
Remo
ving the c
lutc
h and fl
ywheel
It is not necessar
y to remo
v
e the clutch assemb
ly
unless y
ou are ser
vicing the clutch, cr
ankshaft, or
engine bear
ings
.
Use the tip of a small scre
wdr
iv
er to
remo
v
e the E-clip which holds the clutch bell gear
.
STEP 18:
Remove the clutch bell gear and the clutch shoes.
Note that there are two 5x8mm
PTFE
washers, one on
each side of the clutch bell gear.
Check 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 19:
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
wo
rkbench and tap the fly-
wheel from behind with a
non-marr
ing hammer (plastic or w
ood).
Se
v
er
al easy
bl
o
ws ma
y be necessar
y to release the flywheel and
split be
v
eled cone
.
STEP 20:
The flywheel and the split-be
v
eled cone
should pull
smoothly
off of
the cr
ankshaft.
