brake NISSAN 300ZX 1984 Z31 Automatic Transmission Workshop Manual

GENERAL SERVICE NOTICE
Oil Channel
Oil channels which connect components are
located in the
areas shown below.
OIL CHANNELS IN OIL PUMP
Oil pump cover ride
11 pump suction hole Cooler in pressure
011 pump discharge hold LTorque converter in pressure
Oil pump housing ride
ne oressure
SAT499
SAT500
OIL CHANNELS IN TRANSMISSION CASE
Front face rlde
Front & 0 D lubrication Forward clutch (Rear1
gh-reverse clutch
011 pump discharge hole
Direct clutch apply &OD sew0 release pressure
0 0 indicator pressure
SAT501
Lower face side
Governor pressure (To control valve)
Governor feed
(From control
valve)
LOW & reverse brake
High-reverse clutch IFrontl pressure SAT502
ii
OIL CHANNELS IN O.D. CASE
011 pump suction hole Hlgh-reverse clutch (Front1 pressure
Forward clutch
(Rear) Oresure
ront & 0 D lubrication
SAT645 In regards to oneway plug. refer to page AT-32.
AT-6

GENERAL SERVICE NOTICE
I (Cont'd) Oil Cham
OIL CHANNELS IN DRUM SUPPORT OIL CHANNELS IN CONVERTER HOUSING
To lock-up ~ontrol valve
rDrain (E4N71Bl
clutch (Front)
Forward clutch
clutch pressure Front & 0 0 lubrmtmn
SAT706
3peration Mechanic:
In the E4N71B and 4N71B automatic transmission, each part operates as shown in the following table at
each gear select position
'arking
pawl
Htgh-
'everse
Front) Forward clutch (Rear) 0 D band servo Direct
clutch Range -
Release
ON ON
1 Reverse 1 ON 1 ION) ON
+-
ON I
I Neutral I ON I (ON) ON
T-
ON
-
ON
-
ON
ON
JT
I ION
'34
(0 D 1 ON I ON
Second I ON I (ON) ON
1 ON I (ON) 12
(Second) ON ON I ON
ON ord ON I I ON
The low & reverse brake IS applied In "1 I" range to prevent free wheeling when coasting and allows engine braking.
AT-7

REMOVAL AND INSTALLATION
installation (Cont'd)
Check inhibitor switch for operation
Check fluid level
in transmission.
Move selector lever through
all positions to be
sure that transmission operates correctly.
With parking brake applied, rotate engine
at
idling Move selector lever through "N" to
"D", to "2". to "1" and to "R" A slight shock
should
be felt by hand gripping selector each
time transmission
is shifted.
Check to be sure
that line pressure is correct.
To do this, refer to Line Pressure Test
Perform stall test.
AT-I 9,

MAJOR OVERHAUL
N rn 1kg-m. ft-lb)
@ 39 49140-50.29-361
@ 10- 15110- 15.7-11) @ 44.54 14 5 - 5 5,33 -401
@ 13 18113-1.8.9-13)
011 pump assembly & 5 -7 (05 -07.36.5 1) @ 8- 11 (08- 1.1,58-80)
@ 7 -9 (07 -0 9,5 1 -65)
@I 5 4 - 7 4 10.55 - 0 75,4 0 - 5 4)
@ 5.7 105 -0.7,36 - 5 1) @ 29 39130-40.22-29)
O-ring (E4N71B)'
Converter housing
0 D planetary gear assembly
/
/ Connectmg shell-,
lbp&y ) ,,,rLOck*pcontrol solenotd /~ brakeband , /Thrust washer *-
, /Gasket *
Lathe cut seal Tin& 7
\Thrust washer t
2nd brake band
Drum support
0 D cancel solenold
0 D band brake servo assembly
* Always replace
t Select with proper thcknerr * Adjustment IS requwed
AT-20

DISASSEMBLY
6. Remove O.D. component assembly, then re-
move high-reverse clutch (Front) thrust washer
and needle bearing
& race
7. Draw out input shaft and intermedtate shaft
8. Attach Tool to pump and remove pump.
SAT524
9. Remove 0.D servo cover, then loosen O.D.
band servo piston stem
SAT525
10. Remove O.D. pack (0 D planetary gear &
direct clutch assembly)
SAT526
11 Remove needle bearing & race and direct
clutch thrust washer, then remove
0 D. brake
band
& strut.
SAT527
AT-23

DISASSEMBLY
18. Remove control valve body.
Remove manual valve from valve body as a
precaution, to prevent valve from dropping out
accidentally.
SAT007
19 Remove 2nd brake band strut. Brake band and
clutch
& planetary gear pack [Including high-
reverse clutch (Front), forward clutch (Rear)
and front
planetary gear] may be removed
together
To prevent brake linings from cracking or peeling,
do not stretch the flexible band unnecessarily.
Before removing the brake band, always secure
it
with a clip as shown in the figure below.
Leave the clip
in position after removing the brake
band.
Flexible type band brake
2 mm 1008 In) dia wire
SAT656
20. Remove 2nd band servo retalning bolts. Apply
pressure to remove 2nd band =NO.
AT-25

DISASSEMBLY
27 Remove rear extension.
Be careful not to lose retainer washer.
rWarher
SAT537
2% Remove output shaft with governor.
11 SAT019
29. Remove governor thrust washer and needle
bearing.
Remove one-way clutch inner race attaching
hex-head slotted bolts using
Tool
30. Remove one-way clutch inner race, return
thrust washer, low and reverse return spring,
and spring thrust ring.
31. ,Apply air pressure to remove low and reverse
brake piston
. ' SAT022
32. Remove snap ring, then remove lock nut,
manual plate and parking rod.
y- - " -
SAT720
33 Remove Inhibitor switch and manual shah.
34. Remove
O.D. indicator switch and O-ring.
AT-27

REPAIR FOR COMPONENT PARTS
Low & Reverse Brake
In regard to the number of clutch sheets (drwe plate and driven platel. refer to S D S
Toward front
Sprmg thrust rkng
Low and reverse return spring
Return thrust washer
Drwen plate (Steel platel
\-Retainer plate
Snap rlng
INSPECTION
Examine for damaged drive plate facing and
worn snap ring.
Check drive plate facing for wear; if necessary,
replace
Drive plate thickness:
Standard
Allowable limit
1.90 - 2.05 mm (0.0748 - 0.0807 in)
1.8 mm (0.071 in)
seal ring
SAT729
AT-44

REPAIR FOR COMPONENT PARTS
Brake Band and Band Servo
*Return rpnng
Band servo piston
Lathecvt ring real
\servo retainer
‘-Band servo piston stem
Lock nut SAT559
INSPECTION
inspect band frictlon rnaterlal for wear If
cracked, chipped or burnt spots are apparent,
replace the band.
SAT327
Check band %+NO components for wear and
scoring
AT-45

ASSEMBLY
1. Install parking rod, manual plate, manual plate
lock nut, parking brake lever and snap rings.
Ob/-- 0 - 0- 7
SAT720
2 Lubricate and install low and reverse piston
into the case.
SATM8
3 Install thrust ring, piston return spring, thrust
washer and oneway clutch inner race.


4. Install hex-head slotted bolts.
Check that return spring is centered on race before
tightening.
AT135
5 Install steel dished plate first, then steel and
friction plates, and, finally, retaining plate and
snap-ring
AT129
AT-50