torque 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
Hydraulic Control Circuits (Cont'd)
High- 0 D rwerse Forward 2"d Low& OD cancel
4N71B
Torque converter
Note Marked X are dram
-
SAT708
AT-9

REMOVAL AND INSTALLATION
Removal
a Remove bolts securing torque converter to
drive plate.
a. Remove those bolts turning crank shaft.
b. Before removing torque converter, inscribe
matching marks on
two parts so that they may
be replaced in their original positions during
assembly.
a Plug up openings such as oil charging pipe, etc.
CAUTl ON :
Take care when dismounting transmission not to
strike any adjacent
parts.
Installation
0
a
a.
b.
a
Drive plate runout
Maximum allowable runout:
0.5 mm (0 020 in)
n
SAT718
If this runout is out of allowance, replace drive
plate and ring gear
When connecting torque converter to trans-
mission, measure distance "A" to be certain
that they are correctly assembled.
Distance "A":
More than
35 mm (1.38 in)
Install converter to drive plate
Align matching marks painted across both parts
during disassembly.
Before installing torque converter securing
bolts, apply locking sealer to threads
of bolts.
After converter is installed, rotate crankshaft
several turns and check to be sure that trans-
mission rotates freely without binding
AT-I 8

DISASSEMBLY
1. Remove torque converter, drain A.T.F
through end of
rear extension, and place trans-
mission on
Tool.
v
SAT520
2 Remove lock-up solenoid (E4N71B).
3. Remove converter housing.
SATOW
4. Remove oil pan and inspect its contents. An
analysis of any foreign matter can indicate the
types of problems to look for. If the fluid
IS
very dark, smells burned, or contains foreign
particles, the frictional material (clutches,
band.) may need replacement. A tacky film
that will not wipe clean indicates varnish bulld
up which can cause valves, servo, and clutches
to stick and may inhibit pump pressure.
SAT006
5. Loosen 2nd band servo piston stem lock nut
and tighten piston stem.
If it turns more than
two turns, the band
is worn out.
SAT71 5
AT-22

REPAIR FOR COMPONENT PARTS
Oil Pump (Cont'd)
ASSEMBLY
1. Install lock-up control valve and spring into oil
pump cover, then tap new retaining pin.
2 Mount pump housing in Tool and suitable
spacer. Set up pump housing with inner and
outer pump gears on
it and install pump cover
to pump housing Temporarily assemble
oil
pump.
sar-0
3 Set the cover to within the run-out of the
specified total indicator reading.
Total indicator reading:
Less than 0.07 mm (0 0028 in)
SAT541 &25580001
4 Tighten pump securing bolts to the specified
torque Recheck run-out
Drum Support
DISASSEMBLY
1 Remove drum support and gasket from O.D.
case.
SATW
2. Stake off retaining pin using a punch [outer
dia.
1.5 to 1.8 mm (0.059 to 0.071 in)], then
remove
O.D. cancel valve and spring
Don't stake it off from contacting face side
7 Retaining pin
00
AT-30

REPAIR FOR COMPONENT PARTS
Drum Support (Cont'd)
5 Mount 0 D. case, drum support and gasket in
oil pump assembly Temporarily assemble
drum support.
Ensure O.D. case is inserted properly into oil pump
assembly.
0 0 case
I pump cafe 11 An
011 pump centering
SAT547
6. Insert an approx. 110 mm (4.33 in) bar into
bore in oil pump
at shaft location and install
intermediate shaft onto
it.
intermediate shaft
011 pump centering
tool lST25580001)
Suitablebar [llOmm
SAT599 20 mm IO 79 dl
This operation can also be performed by using
Tool
(533909)
7 Set the drum support within the run-out of the
specified total indicator reading
Total indicator reading:
Less than 0 05 mm (0.0020 in)
8 Tighten drum support securing bolts to the
specified torque.
Recheck run-out.
AT-33

ASSEMBLY ~
Total
end play
Totql end play = [B - 0 1 mm (0.004 in)] - C
Specified total end play:
0 25 - 0.50 mm
(0.0098 - 0.0197 in)
Total end play can be adjusted with bearing race
Available oil pump cover bearing race
Thickness rnm (in)
1 2 (0 0471
1
4 (0055)
16 (0.0631
18 (0071)
20
(0 079)
22
(00871
Pan number
31556-X0100 31556-XOlO1
31 556-X0102
31 556-XO103
31 556-XO104
31 556-XO105
17 Install brake band, band strut, and band servo.
Lubricate servo O-rings before installing
SAT066
18 Install and torque the retainer bolts. Loosen
piston stem.
,GG91060000
19 Finger tighten brake band servo piston stem
enough to prevent brake band and
strut from
falling out
Do not adjust brake band at this time.
SAT068
20 Apply vaseline to bearing race and thrust
washer, then mount them
on drum support
e- Bearing race
SA1573
AT-55

ASSEMBLY
29. Adjust O.D. band Tighten piston stem to the
specified value Back off
two full turns and
secure with lock nut.
SAT625
30. Test 0.D band servo operation using corn-
pressed air.
apply pressure
SAT648
31. Install accumulator parts, then secure with
snap ring.
ACCUmUlafOr
Accumulator plug
Snap rmgi
SAT561
32. Lubricate O-ring of oil pump, then install
Before installing oil pump housing and oil pump on
O.D. case, ensure that they have been centered
properly.
Refer to Oil Pump in Repair for Component parts.
33. Remove the two bolts used to temporarily
tighten
O.D. case. Apply sealant to seating
surface
of converter housing around the bolt
holes
needle bearing & race and oil pump
APPIV sealant SAT738
34 Install converter housing on O.D. case and
35. Install input shaft.
tighten to the specified torque
.. SAT585
36. Before installlng valve body assembly perform
a final operation check of all assembled com-
ponents, using compressed air
AT-59

ASSEMBLY
46 Pour approx. 2-liters (2-1/8 US qt, 1-3/4 Imp
qt) of A T.F into converter housing
SAT518
47 Install torque converter to converter housing.
Be careful not to scratch front cover oil seal.
AT-62

TROUBLE-SHOOTING AND DIAGNOSES
Stall
The stall test is an effective method of testing
clutch and band holding ability, torque converter
one-way clutch operation, and engine performance
A
stall test should only be performed as a last
resort because of the high fluid temperature it
generates and the excessive load it places on the
engine and transmission.
CAUTION:
a. Transmission and engine fluid levels should
b
c.
d
always be checked and fluid added as needed.
Run engine to
attain proper warm-up.
During test, never
hold throttle wide-open for
more than
5 seconds
Do not test more than two gear ranges without
driving vehicle to
cool off engine and trans-
mission
STALL TEST PROCEDURE
1 Set parking brake and block wheels
SAT597
2 Install a tachometer where it can be seen by
driver during
test
3 Start engine and place select lever in "D"
range
4 Apply foot brake and accelerate to wide-open
throttle
5 Quickly note the engine stall speed and imme-
diately release throttle
Stall revolution:
VG30E engine without turbo
VG30E turbo engine
2,150 - 2,450 rpm
2,500 - 2,800 rpm
SAT598
6
7 CooloffAT F
8 Perform stall tests in the same manner as in
steps 3 through 7 with select lever in "1" and
"R", respectively
Shift select lever to "N"
AT-93