ACURA NSX 1991 Service Repair Manual

Oil Seal

Removal

1. Remove the differential assembly.

2. Remove the oil seal from the transmission housing.

OIL SEAL

Replace.
TRANSMISSION

HOUSING

3. Remove the oil seal from the torque converter

housing.

OIL SEAL

Replace.
TORQUE CONVERTER

HOUSINGProCarManuals.com

Bearing Preload

Adjustment

NOTE: If any of the items listed below are replaced, the

bearing preload must be adjusted.

TRANSMISSION HOUSING

TORQUE CONVERTER HOUSING

DIFFERENTIAL

TAPERED ROLLER BEARING and OUTER RACE

75 mm THRUST SHIM

90 mm WASHER

OIL GUIDE RING

1. Remove the bearing outer race and 75 mm thrust

shim from the transmission housing by prying up

on the bearing outer race or by heating the housing

to about 212°F (100°C).

CAUTION: Do not reuse the thrust shim if the

outer race was pried out.

NOTE:

• If the outer race was removed by heating the

case, let the transmission cool to room tempera-

ture before adjusting the bearing preload.

• Do not heat the transmission housing in excess

of 212°F (100°C).

• Replace the bearing with a new one whenever

the outer race is replaced.

• Repeat on the torque converter side.ProCarManuals.com

2. Instal l th e standar d shi m an d bearin g oute r rac e in -
t o th e transmissio n housin g usin g th e specia l tool s
a s shown .
CAUTION : D o no t us e mor e tha n on e shi m to ad -
jus t th e bearin g preload .
NOTE:
• Instal l th e bearin g oute r rac e squarely .
• Chec k tha t ther e i s n o clearanc e betwee n th e
bearin g oute r race , shim , an d transmissio n
housing .
DRIVER07749-0010000 ATTACHMEN T72 x 7 5 m m07746-0010600
BEARIN GOUTERRACE
75 m m THRUS TSHIM
3. Lubricat e th e tapere d rolle r bearin g wit h transmis -
sio n fluid , the n instal l th e differential .
4 . Instal l th e transmissio n housing .
NOTE : D o no t instal l th e mainshaft , countershaft ,
revers e idl e gea r shaft , an d secondar y shaft .
Torque : 5 5 N- m (5. 5 kg-m , 4 0 Ib-ft )
5. Rotat e th e differentia l assembl y i n bot h direction s
t o sea t th e bearings .
7
5 m m THRUS T SHIM :
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Bearing Preloa d
Adjustmen t
6. Measur e th e startin g torqu e o f th e differentia l
assembl y wit h a specia l too l an d a torqu e wrenc h
a s shown .
NOTE : Measur e th e bearin g preloa d a t norma l
roo m temperatur e i n bot h directions .
Standard:
3.3-4.5 N-m (33-45 kg-cm, 29-39 Ib-in)
TORQU E WRENC H
DIFFERENTIA LINSPECTION TOOL S07MAJ-PR90100
7. I f th e bearin g preloa d i s no t withi n th e standard ,
selec t th e shi m tha t wil l giv e yo u th e correc t
preload , an d recheck .
NOTE : Changin g on e o f th e shim s t o th e nex t siz e
wil l increas e o r decreas e preloa d abou t 0.3—0. 4
N-m (3- 4 kg-cm , 2.60-3.4 7 Ib-in) .
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Oil Sea l
Installatio n
1. Instal l th e oi l sea l int o th e transmissio n housin g
usin g th e specia l tool s a s shown .
DRIVER07749-0010000
BEARIN G
DRIVE R ATTACHMEN T
07965-SA00600 OI
L SEA L
Replace .
PILOT , 3 2 x 5 0 m m
07MAD-PR90200
2 . Instal l th e oi l sea l int o th e torqu e converte r housin g
using th e specia l tool s a s shown .
DRIVER
07749-0010000 SEA
L DRIVE RATTACHMEN T07947-SD90100 or07947-SD90101
OIL SEA L
Replace .
PILOT, 3 2 x 5 0 m m07MAD-PR90200
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Special Tool s
16-13, 16-14, 16-16, 16-1 7
16-16 16-16
16-1616-17
16-14 16-14, 16-16, 16-17
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Driveshafts
Removal
INSPECTIO N
Driveshaf t Boo t
Chec k th e boot s o n th e driveshaf t fo r cracks , damage ,
leakin g greas e an d loos e boo t bands .
I f an y damag e i s found , replac e th e boot .
Splin e Loosenes s
Tur n th e driveshaf t b y hand , an d mak e sur e th e spline s
an d joint s ar e no t excessivel y loose .
I f damag e i s found , replac e th e joint s i f necessary .
Twiste d o r Cracke d
Mak e sur e th e driveshaf t i s no t twiste d o r cracked .
Replac e if necessary .
INBOARDJOINT
OUTBOAR DJOINT
1. Rais e th e car , an d plac e safet y stand s in th e prope r
location s (se e sectio n 1 ).
2 . Remov e th e rea r wheels .
3 . Drai n th e transmissio n oi l o r flui d (se e sectio n 1 3
M/ T o r sectio n 1 4 A/T) .
NOTE : I t i s no t necessar y t o drai n th e transmissio n
oi l whe n th e righ t driveshaf t i s removed .
4 . Rais e th e lockin g ta b o n th e spindl e nut , the n
remov e th e nut .
NOTE : Befor e installin g th e wheel , clea n th e
matin g surface s of the brak e dis c an d insid e of the
wheel .
26 x 1. 5 m m SPINDL E NU TReplace .335 N- m (33. 5 kg-m , 24 2 Ib-ft )After tightening , us e a drif tto stak e spindl e nu t shoulde ragainst th e driveshaft . WHEE L NU T110 N- m(11 kg-m , 8 0 Ib-ft )
5. Remov e th e banj o bolt , an d disconnec t th e brak e
hose , the n remov e th e brak e hos e clam p fro m th e
knuckle .
CAUTION : Avoi d spillin g brak e flui d o n painted ,
plasti c o r rubbe r surface s a s i t ca n damag e th e
finish ; was h spille d brak e flui d of f immediatel y wit h
clea n water .
NOTE : Cove r th e en d o f th e brak e hos e wit h a
clea n ra g t o preven t contaminatio n of the system.
The n secur e th e hos e t o th e suspensio n arm .
BANJ O BOL T35 N- m(3.5 kg-m , 2 5 Ib-ft )
BRAK E HOS E
WASHE RReplace.
Corrosio n resistan t bol t
6 m m BOL T10 N- m(1.0 kg-m , 7 Ib-ft )
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Driveshafts
Removal
6. Remov e th e whee l senso r fro m th e knuckl e an d th e
rea r o f th e lowe r arm , the n secur e th e whee l senso r
wir e t o th e suspensio n arm .
NOTE :
• D o no t disconnec t th e whee l sensor .
• Avoi d twistin g th e wire s whe n reinstallin g th e
whee l sensor .
7 . Disconnec t th e parkin g brak e cabl e fro m th e body .
Corrosio n resistan t bol t
8 m m FLANG E BOLT S
2 2 N- m (2. 2 kg-m , 1 6 Ib-ft ) PARKIN
G BRAK E CABL E
WHEE L SENSO R 6 mm BOLT-WASHE R
1 0 N- m (1. 0 kg-m , 7 Ib-ft )
8 m m BOLT-WASHE R
2 2 N- m (2. 2 kg-m , 1 6 Ib-ft )
Corrosio n resistan t bol t
TO E CONTRO L AR M FLANG
E BOL T
12 x 1.2 5 mm95 N- m (9. 5 kg-m , 6 9 Ib-ft )
9. Hol d th e dampe r lowe r moun t o f stabilize r lin k wit h
a wrench , an d remov e th e dampe r mountin g nut .
10. Hol d th e bal l pi n o f th e stabilize r lin k wit h a he x
wrench , an d loose n th e self-lockin g nut .
Corrosio n resistan t nu t
DAMPE R MOUNTIN G NU T
12 x 1.2 5 mmReplace .
9 5 N- m (9. 5 kg-m , 6 9 Ib-ft )
WRENC H
HE X WRENC H
STABILIZE R LIN K
SELF-LOCKIN G NU T
12 x 1.2 5 mmReplace .85 N- m (8. 5 kg-m , 6 1 Ib-ft )
11. Remov e th e self-lockin g nut , the n remov e th e
stabilize r lin k fro m th e stabilize r ba r an d knuckle .
Corrosio n resistan t nu t
REA R DAMPE R
SELF-LOCKING NU T
12 x 1.2 5 mmReplace .
STABILIZE R LIN K
8. Remov e th e flang e bolt , the n disconnec t th e to e
contro l ar m fro m th e body .
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12. Remov e th e self-lockin g nu t an d flang e bolt .
13 . Remov e th e self-lockin g nu t an d adjustin g bolt ,
the n disconnec t th e lowe r contro l ar m fro m th e
sub-frame .
Corrosion resistan t bolt/nu t
LOWE R CONTRO L AR M
14 x 1. 5 m mReplace .125 N- m (12. 5 kg-m , 9 0 Ib-ft )
ADJUSTIN G CA M
ADJUSTIN G BOL T
FLANG E BOL T
SELF-LOCKIN G NU T
14 x 1. 5 m mReplace .
12 5 N- m (12. 5 kg-m , 9 0 Ib-ft )
14. Pul l th e knuckl e outward , an d remov e th e driveshaf t
outboar d join t fro m th e knuckl e usin g a plasti c
hammer .
KNUCKL E
OUTBOAR D JOIN T
15. Pr y th e driveshaf t assembl y wit h a screwdrive r a s
show n t o forc e th e se t rin g pas t th e groove .
SCREWDRIVE R
3.5 m m
7 m m
16. Pr y th e inboar d join t outward , the n remov e th e
driveshaf t an d C V join t fro m o f th e differentia l cas e
or intermediat e shaf t a s a n assembly .
CAUTION :
• D o no t pul l o n th e driveshaft , a s th e C V join t
ma y com e apart .
• Us e car e whe n pryin g ou t th e assembly , an d pul l
i t straigh t t o avoi d damagin g th e differentia l oi l
sea l o r intermediat e shaf t dus t seal .
INBOAR D JOIN T
17. Installatio n i s th e revers e orde r of removal .
Afte r installin g th e driveshafts , adjus t th e whee l
alignmen t (se e sectio n 18 ).
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Driveshafts

Disassembly

1. To remove the boot band, pry up the locking tabs

with screwdriver, and raise the end of the band.

NOTE: Carefully clamp the driveshaft in a vise

with soft jaws.

CAUTION: Take care not to damage the boots.

LOCKING TABS

2. Remove both joints.

• Outboard joint side only:

— Remove the circlip from the outboard joint

groove.

— Remove the outboard joint and spring.

CIRCLIP

SPRING

CAP
Outboard joint only.
3. Remove the rollers from the spider.

ROLLER

4. Remove the set ring; then remove the spider with a

bearing remover.

NOTE: Before disassembly, mark the spider and

driveshaft so they can be reinstalled in their original

positions.

SET RING

BEARING REMOVER

Mark

Mark
SPIDER

DRIVESHAFT
SPIDER

SET RINGProCarManuals.com