1991 ACURA NSX Service Repair Manual

Replacement
1. Remov e th e flywhee l mountin g bolt s i n a criss -
cros s patter n i n severa l steps , an d remov e th e
flywheel .
MOUNTIN G BOLT S
FLYWHEE L RIN
G GEA R HOLDE R07LAB - PV0010 0 o r0792 4 - PD2000 3
2 . Remov e th e bal l bearin g fro m th e flywheel .
DRIFTPUNC H
FLYWHEE L
BALL BEARIN G
3. Driv e th e ne w bal l bearin g int o th e flywhee l usin g
th e specia l tool s a s shown .
DRIVER07749 - 001000 0
ATTACHMENT ,37 x 40 m m07746 - 001020 0
FLYWHEEL
BALL BEARIN G
4. Alig n th e hole s i n th e flywhee l wit h th e mountin g
bol t holes , the n instal l th e flywheel . Instal l th e bolt s
finge r tight .
5 . Instal l th e specia l tool , the n torqu e th e flywhee l
mountin g bolt s i n a crisscros s patter n i n severa l
step s a s shown .
MOUNTIN G BOL T12 x 1. 0 m m105 N- m (10. 5 kg-m , 7 6 Ib-ft ) RIN
G GEA R HOLDE R07LAB - PV0010 0 o r0792 4 - PD2000 3
FLYWHEE L
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Pressure Plate , Clutc h Dis c, Mid Plate
Installatio n
NOTE:
• Instal l th e pressur e plate , clutc h discs , an d mi d plat e
as a set .
• D o no t mix-u p th e 1s t an d 2n d clutc h discs . Th e 2n d
clutc h dis c ha s a fla t plat e betwee n th e tw o frictio n
surfaces . Th e 1s t clutc h dis c ha s a sprin g plat e be -
twee n th e tw o frictio n surfaces .
• Us e onl y Supe r Hig h Tem p Ure a Greas e (P/ N
08798-9002) .
1. Instal l th e dampe r washe r an d sprin g collar .
SPRIN G COLLA RDAMPER WASHE R
Turn th e groov e t oth e ou t side .
2. Instal l th e specia l tool .
3 . Instal l th e 2n d clutc h dis c usin g th e specia l tools .
NOTE : Th e inde x mar k o n th e 2n d clutc h dis c
shoul d fac e awa y fro m th e flywheel .
FLYWHEE L
2ND CLUTC H DIS C
HANDL E07936 - 371010 0
(P/N 08798-9002 )
CLUTCH ALIGNMEN T SHAF T07MAF - PR8010 0
RING GEA R HOLDE R07LAB - PV0010 0 o r0792 4 - PD2000 3 4
. Instal l th e mi d plate .
NOTE : Alig n th e mar k o n th e flywhee l wit h th e
mar k o n th e mi d plate .
Align th e marks .
FLYWHEE LMID PLAT E
5. Instal l th e 1s t clutc h disc .
NOTE :
• Th e mark s o n th e 1s t an d 2n d clutc h disc s
shoul d b e 180 ° apart .
• Th e index mark o n th e 1s t clutc h dis c shoul d
fac e awa y fro m th e flywheel .
MARKS
1ST CLUTC H DIS C
(P/N 08798-9002 )
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6. Install the release bearing on the pressure plate.

7. Install the pressure plate.
NOTE:
Align the mark on the mid plate with the mark onthe pressure plate.
After installing, make sure the release bearing is
secure.

Align the marks.

PRESSURE PLATE

RELEASE BEARING

PRESSURE PLATE

(P/N 08798-9002)
RELEASE

BEARING
Place the diaphragm spring fingers

in the groove of the release bearing.
9. Remove the special tools.

10. Initialize the mid plate guides (see page 12-14

('93-'96), 12-16 ('91-'92 Models).
MOUNTING BOLT

8 x
1.25
mm
22 N·m (2.2 kg-m, 16 Ib-ft)

8. Torque the mounting bolts in a crisscross pattern
as shown. Tighten them several steps to prevent

warping the diaphragm spring.

NOTE: Place the diaphragm spring fingers in the
groove of the release bearing.ProCarManuals.com

13-42
13-4 2
13-3 9
13-4 0
13-3 9
13-4 2
13-4 2
13-39, 13-4 0
Special Tool s
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Maintenance
Transmissio n Oi l
NOTE : Chec k th e oi l a t norma l operatin g temperatur e
(th e coolin g fa n come s on) , engin e OFF , an d th e ca r o n
leve l ground .
1 . Remov e th e oi l fille r plug , the n chec k th e leve l an d
conditio n o f th e oil .
WASHE R
Replace . Prope
r Level .
OI L FILLE R PLU G
4 5 N- m (4. 5 kg-m , 3 3 Ib-ft )
2. Th e oi l leve l mus t b e u p t o th e fill hole . I f i t i s belo w
th e hole , ad d oi l unti l i t run s out , the n reinstal l th e
oi l fille r plug .
3 . I f th e transmissio n oi l i s dirty , remov e th e drai n plu g
an d drai n th e oil .
4. Reinstal l th e drai n plu g wit h a ne w washer , an d
refil l th e transmissio n oi l t o th e prope r level .
5 . Reinstal l th e oi l fille r plu g wit h a ne w washer .
NOTE : Th e drai n plu g washe r shoul d b e replace d
a t ever y oi l change .
Oi l Capacity
2. 7 (2. 9 U S qt , 2. 4 Im p qt ) a t oi l change .
2.8 (3. 0 U S qt , 2. 5 Im p qt ) a t overhaul .
Use onl y SAE10W-3 0 or 10W-40 , API Servic e SF
or S G grade .
DRAIN PLU G
4 0 N- m (4. 0 kg-m , 2 9 Ib-ft )
WASHE R Replace .
Back-up Ligh t Switch ,
Neutral Positio n Switc h
Replacemen t
NOTE: T o chec k th e switch , se e sectio n 23 .
1 . Disconnec t th e connector , the n remov e th e switc h
connecto r fro m th e connecto r clamp .
2 . Remov e th e switch .
3. Appl y liqui d gaske t (P/ N 08718-0001 ) t o th e
switc h threads , the n instal l th e switch .
BACK-U P LIGH T SWITC H
2 5 N- m (2. 5 kg-m , 1 8 Ib-ft )
NEUTRA L POSITIO N SWITC H
2 5 N- m (2. 5 kg-m , 1 8 Ib-ft )
OI
L FILLE R PLU G
4 5 N- m (4. 5 kg-m , 3 3 Ib-ft )
WASHE R Replace .
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Gearshift Mechanism
Overhaul
NOTE:
• Inspec t rubber parts fo r wea r an d damag e whe n disassembling .
• Chec k tha t th e ne w cotte r pi n i s seate d firmly .
SELEC T LIN KCOLLA RSHIFT LEVE R 6
x 1. 0 m m BOLT S
10 N- m (1. 0 kg-m ,7 Ib-ft ) 6 x 1. 0 m m
1 0 N- m (1. 0 kg-m , 7 Ib-ft )COTTE
R PI N
Replace .
6 x 1. 0 m m BOL T
1 0 N- m (1. 0 kg-m , 7 Ib-ft )
SHIF T LEVE R
LINKAG E
(Silicone Grease )
1 0 N- m (1. 0 kg-m , 7 Ib-ft )
SHIF T LEVE R
BRACKE T
8 x 1.2 5 mm22 N- m (2. 2 kg-m ,16 Ib-ft )
8 x 1.2 5 mm22 N- m (2. 2 kg-m , 1 6 Ib-ft )
A : SELF-LOCKIN G NU T
Replac e6 x 1. 0 m m10 N- m (1. 0 kg-m , 7 Ib-ft )
2
2 N- m (2. 2 kg-m , 1 6 Ib-ft )
SHIF
T CABL E
PIVO T
BUSHIN G
SHIF T LEVE R
PIVO T GUID E
SHIF
T LEVE R
BAL L SEA T STEE
L WASHE R
PLASTI C WASHE R
SELEC T CABL E
SHIFTLEVE RPIVOTSHIFTLEVE RBUSHIN G
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Cable Adjustmen t
1. Remov e th e cente r consol e pane l (se e sectio n 20 ).
2 . Mov e th e shif t leve r int o 1s t gear .
3. Instal l th e 6 m m bol t t o th e shif t lever .
NOTE : Whil e movin g th e shif t leve r bac k an d
forth , an d righ t an d left , tighte n th e bol t unti l th e
rang e of fre e pla y of the shif t leve r i s 1 — 2 mm .
6 x 1. 0 m m BOL T
Lengt h o f thread s
30 m m (1.1 8 in)
SHIF T LEVE R
SHIF T LEVE R
BRACKE T
4. Remov e th e transmissio n lowe r cover .
5 . Disconnec t th e selec t an d shif t cable s fro m th e
transmission , the n remov e th e cabl e bracke t wit h
th e selec t an d shif t cables .
6 . Remov e th e selec t an d shif t cable s fro m th e cabl e
bracket .
7. Measur e th e distance s
NOTE:
• Hol d th e cabl e end s u p t o th e selec t an d shif t
lever s a s i f the y wer e connecte d t o them .
• Adjus t b y loosenin g th e locknu t a t th e cabl e en d
an d turnin g th e cabl e end .
SHIF T LEVE R
SHIF T CABL E
SELECT LEVE R
SELEC T CABL E
SELEC T CABL E
155.4 mm (6.1 2 in)
LOCKNU T
(Silicon e Grease )
SHIFT CABL E178.5 mm (7.0 3 in)
LOCKNU T
(Silicon e Grease )
8. Instal l i n th e revers e orde r of removal .
9 . Afte r installing , chec k operatio n of the shif t lever .
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Transmission Assembl y
Removal
Make sur e lift s ar e place d properly , an d
hois t bracket s ar e attache d t o correc t position s (se e
sectio n 1 ).
CAUTION : Us e fende r cover s t o avoi d damagin g
painte d surfaces .
1 . Chec k an d recor d th e rea r whee l alignmen t (se e
sectio n 18 ).
2 . Disconnec t th e batter y negativ e (- ) an d positiv e (+ )
cable s fro m th e battery .
3 . Drai n transmissio n oil . Reinstal l th e drai n plu g wit h
a ne w washer .
Corrosio n resistan t bolt/nu t
4. Remov e th e stru t bar .
5 . Remov e th e ai r cleane r assembly .
6 . Remov e th e connector s fro m th e contro l box , an d
remov e th e contro l box .
CAUTION : D o no t remov e th e vacuu m tube s fro m
th e contro l box .
7 . Remov e th e wir e harnes s holder , jumpe r connecto r
an d transmissio n ground cable.
8 . Disconnec t th e back-u p ligh t switch , neutra l posi -
tio n switch , differentia l spee d sensor , an d vehicl e
speed senso r (VSS ) connectors .
9. Disconnec t th e starte r moto r cables , the n remov e
th e starte r motor .
10 . Remov e th e transmissio n mount .
11 . Remov e th e tw o transmissio n housin g bolts .
TRANSMISSIO N
HOUSIN G BOLT S
CONTROL BO X
BACK-U PLIGHT SWITC H
CONNECTO R
WIR E HARNES S HOLDE R
STARTER MOTOR
CABLES
NEUTRA L
POSITIO N
SWITCHCONNECTO R
DIFFERENTIA L
SPEE D SENSO R
VEHICL E SPEE D
SENSO R (VSS )
CONNECTO R
JUMPERCONNECTO R
TRANSMISSIO N
MOUNTING BOLT S
TRANSMISSIO NHANGER
STARTE RMOTOR MOUNTIN
G TRANSMISSIO N
BOLT S MOUN T
TRANSMISSIO
N
GROUN D
CABLE
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