Page 13 of 136
aiDtenuce
TUDe
up
Fig
12
Fuel
strainer
Install
Idle
hmlter
cap
m
posItion
makmg
sure
that
the
adJustmg
screw
can
further
turn
rotatIOn
m
the
CO
RICH
d1rectlOn
Dash
Pot
Automatic
Transmission
Model
Only
Check
operation
of
dash
pot
It
should
not
be
cracked
or
bound
It
IS
also
essenttal
to
check
r
w
be
certam
that
It
IS
m
correct
adjustment
Check
to
be
sure
that
dash
pot
contacts
stop
per
lever
when
engme
speed
reaches
1
900
to
2
000
rpm
Engme
should
be
slowed
down
from
3
000
to
1
000
rpm
within
a
few
seconds
Readjust
dash
pot
or
replace
It
with
a
new
one
lflt
falls
to
meet
the
above
condItions
Carburetor
Return
Spring
Check
throttle
return
sprmg
for
sign
of
damage
wear
or
squareness
Discard
spring
If
found
wIth
any
of
above
excessIvely
beyond
use
Fuel
Filter
Check
for
a
contammatlOn
element
water
depoSIt
and
defection
All
engmes
use
a
cartridge
type
strainer
If
1t
IS
found
to
be
defective
replace
as
an
assembly
u
Page 99 of 136
Transmission
AUTOMATIC
TRANSMISSION
The
model
3N71B
automatic
transmiSSIOn
IS
a
fully
automatic
Unit
consisting
pnmanly
of
3
element
hydrauhc
torque
converter
and
two
planetary
gear
sets
Two
multiple
disc
clut
ches
a
multiple
disc
brake
a
band
brake
and
a
one
way
sprag
clutch
provide
the
fnctlon
elements
reqUired
to
obtain
the
deSired
fun
tlon
of
the
two
planetary
gear
sets
The
two
planetary
gear
sets
give
three
for
ward
ratIOs
and
one
reverse
Changing
of
the
gear
ratIOs
IS
fully
automatic
In
relation
to
vehicle
speed
and
engine
torque
Input
Vehicle
speed
and
engine
mamfold
vacuum
Signals
are
constantly
fed
to
the
transmiSSIOn
to
prOVide
the
proper
gear
ratIO
for
maximum
effiCiency
and
performance
at
all
throttle
openmgs
The
Model
3N71B
has
SIX
selector
poSitIOns
P
R
N
D
2
1
p
Park
pOSitIOn
posItively
locks
the
out
put
shaft
to
the
transmiSSIOn
case
by
means
of
a
lockmg
pawl
to
prevent
the
vehicle
from
rollmg
either
directIOn
ThiS
pOSitIOn
should
be
selected
whenever
the
dnver
leaves
the
vehicle
The
engme
may
be
started
m
Park
pOSition
R
Reverse
range
enables
the
vehicle
to
be
operated
m
a
reverse
direction
N
Neutral
pOSitIOn
enables
the
engine
to
be
started
and
run
Without
dnvIngthe
vehicle
0
Drive
range
IS
used
for
all
normal
driVing
conditions
Dnve
range
has
three
gear
ratios
from
the
startmg
ratIO
to
direct
dnve
2
2
range
prOVides
performance
for
dnvIng
onshppery
surfaces
2
range
can
also
be
used
for
engine
brakmg
2
range
can
be
selected
at
any
vehicle
speed
and
prevents
the
transmlsslOn
from
shifting
out
of
second
gear
108
Rg
162
Idenllflcatlon
number
I
1
range
can
be
selected
at
any
vehicle
speed
and
the
transmiSSIOn
will
shift
to
second
gear
and
remain
m
second
until
vehicle
speed
IS
reduced
to
approximately
25
to
31
MPH
1
range
posItion
prevents
the
transmiSSIOn
from
shlftmg
out
of
low
gear
ThiS
IS
par
tlcularly
benefiCial
for
mamtamIng
maximum
engine
brakmg
when
continUOUS
low
gear
operation
IS
deSirable
The
torque
converter
assembly
IS
of
welded
constructIOn
and
can
not
be
dlssassembled
for
service
FlUld
Recommendatwn
Use
automatic
transmiSSIOn
flUid
haVing
DEXRON
IdentificatIOns
only
m
the
3N71B
automatic
transmiSSIOn
denttficatwn
Number
Stamped
posttwn
The
plate
attached
to
the
rIght
hand
Side
of
transmission
case
as
shown
m
Figure
161
denttficatwn
of
number
arrangements
See
Page
109
RECOMMENDATIONS
Due
to
the
compleXity
of
setting
up
a
disassembled
transmissIOn
as
well
as
the
special
tools
necessary
It
IS
recommended
thaL
nternal
epalrs
be
left
to
a
fully
eqUip
ped
shop
Page 129 of 136
Specifications
SPECIFICATIONS
AND
SERVICE
DATA
Make
NGK
Model
BP5ES
HITACHI
l46PW
S
ze
Screw
dla
x
Reach
mm
m
14
x
19
0
55
x
0
75
o
8
to
0
9
0
031
10
0
035
15t025
11
Oto
150
Plug
gap
mm
10
Tlghtemng
torque
kg
m
ft
lb
FUEL
SYSTEM
Carburetor
model
DCH3064
for
ManuallransrnlSSlon
DCH306
5
for
Automalle
transmisSIon
Downdraft
Apphed
englOe
Type
Primary
Secondary
Outlet
dIameter
10m
10
10m
10
26
J
024
30
1
181
20
0
787
26
I
024
95
140
fI
80
fI
80
fI
43
fI
50
Venturi
diameter
MamJet
MalO
air
bleed
Slow
let
Slow
alf
bleed
215
100
Power
Jet
Float
level
H
mm
lO
60
18
to
20
0
709
to
0
748
HO
