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In
these
cases
the
transmission
must
be
repaired
Notes
a
In
checking
oil
level
use
special
paper
cloth
to
handle
the level
gauge and be careful
not to
let the
scraps of paper
and
cloth stick
to
the gauge
b
Insert the gauge
fully
and take
it
out
quickly
before
splashing
oil
adheres
to
the gauge Then observe
the level
c
Use
automatic transmission
fluid
having
DEXRON
identifications
only
in the 3N71B automatic
trans
mission
d
Pay
attention because the oil
to
be
used differs from that used
in
the
Nissan
Full
Automatic
TranSJTIis
sion
3N71A
Never
mix the oils
INSPECTION AND REPAIR
OF OIL LEAKAGE
When oil
leakage
takes
place
the
portion
near
the
leakage
is
covered
with
oil
presenting
difficulty
in
detecting
the
spot
Therefore
the
places
where oil seals and
gaskets
are
equipped
are
enumerated below
11
Converter
housing
Rubber
ring
of oil pump
housing
Oil seal of oil pump
housing
Oil seal of
engine crankshaft
Bolts of converter
housing
to
case
2
Trarismission and
rear
extension
Junction of
transm
ss
ion
and
rear
extension
J
Oil cooler tube
connectors
Oil pan
Oil pressure
inspection
holes Refer
to
Figure
AT
il2
Mounting
portion
of
vacuum
dia
phragm
and downshift solenoid
Breather and oil
charging
pipe
Speedometer
pinion
sleeve
Oil
se
l of
rear
extension
To
exactly
locate the
place
of oil
l e aka le
proceed
as
follows
Place the vehicle
in
a
pit
and
by
sampling
the leaked oil determine if
it
is
the
torque converter oil The
torque
converter
oil has
a
color like
r
d
wine
So
it is
easily
distinguished
from
engine
oil
or
gear oil
Automatic rransmission
Wipe
off the
leaking
oil and dust
and
deiecl
the
spol
of oil
eakage
l
se
nonflammable
organic
solve
t
s
ch
as
carbon tetrachloride for
wiping
Raise
the
oil
tcmperalure
by
op
erating
the
engine
and
shift
the
lever
to
D
to
increase
the oil pressure
The
spot
of oil
lcakage
will
then
be
found
more
easily
Note
As
oil
leakage
from the
breaih
er
does
not
take
place
except
when
running
at
high speed
it is
impos
sible
to
locate this
leakage
with
vehicle
stationary
CHECKING ENGINE IDLING
REVOLUTION
The
engine
idling
revolution should
be
properly
adjusted
If the
engine
revolution
is too
low
the
engine
does
not
operate
smoothly
and if
too
high
a
strong shock
or
creep
develops
when
changing
over
from
N
to
D
or
R
CHECKING
AND
ADJUSTING
KICK DOWN
SWITCH
AND
DOWNSHIFT SOLENOID
When
the kickdown
operation
is
not
made properly
or
the
speed
chang
ing point
s
too
high
check
the kick
down switch
downshift solenoid
and
wiring
between them When
the
igni
li
n
key
is
pqsitioned
a t
the
I st
stage
nd the accelerator
pedal
is
depressed
deeply
the switch
contact
should be
closed and the solenoid should click If
it
does
not
click
it
indicates
a
defect
Then check each
part
with the
testing
instruments
See
Figure
ATl09
d
I
t
AT10S
Fig
AT 109
Downshift
solenoid
Note
Watch
for
oil
leakage
from
transmission
case
AT
4Q
INSPECTION AND
ADJUSTMENT OF MANUAL
LINKAGE
The
adjustmcnt
of
manual
linkage
is
equaUy
important
as
Inspection
of
Oil Level
for
the automatic transmis
sion
Thereforc
great
care
should be
exercised because
incorrect
adjustment
will
rcsult
in the
brcakdown of the
transmission
Inspection
Pull
the selector lever toward
you
and
turn it
as
far
as
P
to
I
range
wherc clicks will be felt
by
the hand
This
is the
detcnt of manual
valve in
the
valve
body
and
indicates
th
correct
position
of
the
lever
Inspect
whether
the
pointer
of
selector dial
corresponds
to
this
point
and also whether
the
lever
comes
in
alignment
with the
stepping
of
posi
tion
plate
when
it is
released
Adjustment
This
procedure
can
be
accomplish
ed
by
refcrring
to
page
AT 35
for
Removal and Installa
tion
CHECKING
AND
ADJUSTING
INHIBITOR
SWITCH
The inhibitor switch
lights
the
re
verse
lamp
in
the
range
R
of the
transmission
o p e r a t i o l and also
rotates
the
starter
motor
in
the ranges
N
and
P
CD
@
b ell
If
L
t
7
4l
@
1l
j7
@
@
@
dl
AT109
6
Washer
7
Nut
8
Inhibitor switch
9
Range select
lever
t
Inhibitor switch
2
Manual shaft
3
Washer
4
Nut
5
Manual
plate
Fig
AT 110 Construction
of
inhibitor
switch
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