ACURA NSX 1991 Service Repair Manual

1 5 . Tighte n th e transmissio n housin g attachin g bolt s i n
a crisscros s patter n in severa l step s a s show n below .
Torque : 4 5 N- m (4. 5 kg-m , 3 3 Ib-ft )
16 . Instal l th e 3 6 m m sealin g bolt .
NOTE :
Apply liquid gaske t (P/ N 08718-0001 ) to
th e threads .
17 . Instal l th e stee l balls , springs , an d sealin g bolts .
NOTE : Appl y liqui d gaske t (P/ N 08718-0001 ) t o
th e threads , bu t don' t plu g th e hol e with liquid
gasket .
STEEL BAL L(3/8 in)
14 x 1. 0 m m SEALIN G BOL T33 N- m (3. 3 kg-m , 2 4 Ib-ft )
SPRIN G (L . 2 5 mm )
3 6 m m SEALIN G BOL T
3 5 N- m (3. 5 kg-m , 2 5 Ib-ft )
SPRIN G
(L. 24. 2 mm ) 12 x 1. 0 m m
SEALIN G BOL T22 N- m (2. 2 kg-m ,16 Ib-ft )
STEE L BAL L(5/16 in)
16 x 1. 0 m mSEALIN G
BOL T COM P
42 N- m(4.2 kg-m , 3 0 Ib-ft )
18. Instal l th e back-u p ligh t switc h an d neutra l positio n
switch.
NOTE: Appl y liqui d gaske t (P/ N 08718-0001 ) t o
the threads .
19. Instal l th e differentia l spee d senso r an d vehicl e spee d
senso r (VSS) .
VSS(O-RIN G Replace. ) NEUTRA
L POSITIO N
SWITCH25 N- m (2. 5 kg-m ,18 Ib-ft )
DIFFERENTIA L
SPEE D SENSO R
BACK-UP LIGH T SWITC H
2 5 N- m (2. 5 kg-m , 1 8 Ib-ft )
A: 8 x 1.2 5 mm24 N- m (2. 4 kg-m , 1 7 Ib-ft )B: 8 x 1.2 5 mm26 N- m (2. 6 kg-m , 1 9 Ib-ft )C: 6 x 1. 0 m m12 N- m (1. 2 kg-m , 9 Ib-ft )
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Transmission Assembl y
Installatio n
NOTE:
• Chec k tha t th e tw o dowe l pin s ar e installe d i n th e clutc h housing .
• Us e onl y Supe r Hig h Tem p Urea Greas e (P/N 08798-9002) .
1. Plac e th e transmissio n o n th e transmissio n jack , an d rais e it t o th e engin e level .
2 . Se t th e releas e for k t o th e clutc h housing .
3 . Instal l th e tw o transmissio n housin g mountin g bolt s an d engin e stiffener .
4. Instal l th e thre e rea r transmissio n mountin g bolts .
5. Loose n th e fron t engin e mountin g bolt , the n instal l th e tw o fron t engin e
mountin g bolt s t o th e transmissio n side .
6 . Remov e th e transmissio n jack .
7 . Instal l th e clutc h housin g cover .
DOWE L PIN S
(P/N 08798-9002 )
REAR TRANSMISSIO NMOUNTING BOLT S12 x 1.2 5 mm105 N- m(10. 5 kg-m , 7 6 Ib-ft )
TRANSMISSIO NJACK
TRANSMISSIO N HOUSIN GMOUNTIN G BOLT S12 x 1.2 5 mm65 N- m (6. 5 kg-m , 4 7 Ib-ft )
FRON T ENGIN EMOUNTIN G BOL T10 x 1.2 5 mm60 N- m (6. 0 kg-m , 4 3 Ib-ft )
8 x 1.2 5 mm22 N- m (2. 2 kg-m , 1 6 Ib-ft )
6 x 1. 0 m m12 N- m (1. 2 kg-m ,9 Ib-ft )
CLUTC H HOUSIN GCOVER10 x 1.2 5 mm45 N- m (4. 5 kg-m , 3 3 Ib-ft )
TRANSMISSIO N HOUSIN G MOUNTIN G BOL T12 x 1.2 5 mm65 N- m (6. 5 kg-m , 4 7 Ib-ft )
8. Instal l th e releas e for k i n th e releas e hanger , the n instal l th e slav e cylinder .
9. Connec t th e shif t cabl e an d selec t cable .
CAUTION : Tak e car e no t t o ben d th e cables .
10 . Instal l th e uppe r cover , chang e wir e bracke t an d lowe r cover .
11 . Instal l th e uppe r contro l ar m mountin g bolt .
Corrosio n resistan t bolt/nu t
8 x 1.2 5 mm22 N- m (2. 2 kg-m ,16 Ib-ft )
COTTE R PI NReplace .
SLAVE CYLINDE R
6 x 1. 0 m m12 N- m (1. 2 kg-m ,9 Ib-ft )
CHANG EWIREBRACKE T
LOWERCOVER
8 x 1.2 5 mm 6 x 1. 0 m m26 N- m (2. 6 kg-m , 1 9 Ib-ft ) 1 2 N- m (1. 2 kg-m , 9 Ib-ft )
UPPE R CONTRO L AR M MOUNTIN G BOL T10 x 1.2 5 mm60 N- m (6. 0 kg-m , 4 3 Ib-ft )
(P/N 08798-9002 )
Corrosion resistan t bolt/nu t
UPPER COVE R
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12. Instal l a ne w se t rin g o n th e en d o f th e lef t driveshaf t an d intermediat e shaft .
13 . Instal l th e lef t driveshaf t (se e sectio n 16 ).
14 . Instal l th e lowe r contro l ar m to th e sid e bea m (se e sectio n 18 ).
CAUTION : Alig n th e referenc e mark s o n th e adjustin g bolt , adjustin g ca m an d lowe r contro l arm .
15 . Instal l th e dampe r for k bol t (se e sectio n 18 ).
16 . Instal l th e to e contro l ar m to th e sid e bea m (se e sectio n 18 ).
CAUTION : Mak e sur e tha t th e arro w mark s o n th e to e contro l ar m ar e aligned .
17 . Instal l th e whee l senso r wir e clam p an d parkin g brak e cabl e holder .
Corrosio n resistan t bolt/nu t
SELF-LOCKIN G NU T
Replac e
12 x 1.2 5 mm95 N- m (9. 5 kg-m , 6 9 Ib-ft ) DAMPE
R
FOR K BOL T SELF-LOCKIN
G NU T
Replace .12 x 1.2 5 mm85 N- m (8. 5 kg-m , 6 1 Ib-ft )
6 x 1. 0 m m10 N- m(1.0 kg-m , 7 Ib-ft )
WHEE L SENSO R WIR E CLAM P
LOWE R CONTRO L AR M
SELF-LOCKIN G NU T
Replace .14 x 1. 5 m m125 N- m(12. 5 kg-m , 9 0 Ib-ft )
8 x 1.2 5 mm22 N- m (2. 2 kg-m , 1 6 Ib-ft )
PARKIN G BRAK E CABL E HOLDE R
FLANG E BOL T
12 x 1.2 5 mm95 N- m(9.5 kg-m , 6 9 Ib-ft )
TO E CONTRO L AR M
SE T RIN G
Replace .
SELF-LOCKIN G NU T
Replace .
14 x 1. 5 m m125 N- m (12. 5 kg-m , 9 0 Ib-ft )
6 x 1. 0 m m10 N- m (1. 0 kg-m , 7 Ib-ft )
HEA T COVE R
8 x 1.2 5 mm22 N- m(2.2 kg-m , 1 6 Ib-ft )
INTERMEDIAT E SHAF T
18. Instal l th e intermediat e shaft , an d tighte n th e intermediat e shaf t mountin g bolt s t o th e intermediat e shaf t suppor t
base.
19. Instal l th e intermediat e shaf t hea t cover .
SUPPOR T BAS E
Corrosio n resistan t bolt/nu t
ADJUSTIN G ADJUSTIN G
BOL T CA M
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Transmission Assembl y
Installation
20. Instal l th e righ t driveshaf t ont o th e intermediat e shaft .
21. Instal l th e lowe r contro l ar m to th e sid e bea m (se e sectio n 18 ).
CAUTION : Alig n th e referenc e mark s o n th e adjustin g bolt , adjustin g ca m an d lowe r contro l arm .
22. Instal l th e damper fork bol t (se e sectio n 18 ).
23 . Instal l th e to e contro l ar m to th e sid e bea m (se e sectio n 18 ).
CAUTION : Mak e sur e tha t th e arro w mark s o n th e to e contro l ar m ar e aligned .
24. Instal l th e whee l senso r wir e clam p an d parkin g brak e cabl e holder .
Corrosio n resistan t bolt/nu t
8 x 1.2 5 mm22 N- m (2. 2 kg-m ,16 Ib-ft )
PARKIN G BRAK E
CABL E HOLDE R
FLANG E BOL T
12 x 1.2 5 mm95 N- m (9. 5 kg-m , 6 9 Ib-ft )
SELF-LOCKIN G NU T
Replace .
12 x 1.2 5 mm85 N- m (8. 5 kg-m , 6 1 Ib-ft )DAMPE R
FOR K BOL T
TO E CONTRO L AR M
SELF-LOCKIN G NU T
Replace .14 x 1. 5 m m125 N- m (12. 5 kg-m , 9 0 Ib-ft )
ADJUSTIN G CA M
ADJUSTIN G BOL T
25. Instal l th e fron t exhaus t pip e A .
26 . Instal l th e rea r bea m rod .
27 . Instal l th e parkin g brak e cabl e holder s o n th e rea r bea m rod .
SELF-LOCKIN G NU T
Replac e
12 x 1.2 5 mm95 N- m (9. 5 kg-m , 6 9 Ib-ft )
6 x 1. 0 m m10 N- m (1. 0 kg-m , 7 Ib-ft )
WHEE L SENSO R WIR E CLAM P
LOWE R CONTRO L AR M
SELF-LOCKIN G NU T
Replace .14 x 1. 5 m m125 N- m (12. 5 kg-m , 9 0 Ib-ft )
SELF-LOCKIN G NU T
Replace .
10 x 1.2 5 mm34 N- m (3. 4 kg-m , 2 5 Ib-ft )
GASKE TReplace .
Corrosio n resistan t bolt/nu t
PARKIN G BRAK E CABL E
HOLDER S
EXHAUS T
PIP E A
GASKE T
Replace .
REAR BEA M RO D
10 x 1.2 5 mm60 N- m (6. 0 kg- m43 Ib-ft )
8 x 1.2 5 mm22 N- m (2. 2 kg-m ,16 Ib-ft )
12 x 1.2 5 mm95 N- m (9. 5 kg-m , 6 9 Ib-ft )
10 x 1.2 5 mm60 N- m (6. 0 kg-m , 4 3 Ib-ft )
SEL F LOCKIN G NU T
Replace .
10 x 1.2 5 mm55 N- m (5. 5 kg-m , 40-lb-ft )
8 x 1.2 5 mm22 N- m (2. 2 kg-m , 1 6 Ib-ft )
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28. Instal l th e transmissio n moun t an d tw o transmissio n
housin g mountin g bolts .
29 . Instal l th e starte r motor , an d connec t th e starte r
motor cables .
NOTE: Whe n installin g th e starte r moto r cable ,
mak e sur e tha t th e crimpe d sid e o f th e rin g termi -
nal s facin g ou t (se e sectio n 23 ).
30 . Instal l th e transmissio n groun d cabl e an d jumpe r con -
nector , an d connec t th e back-u p ligh t switch , neu -
tra l positio n switch , differentia l spee d sensor , an d
vehicl e spee d senso r (VSS ) connector . 31
. Instal l th e contro l box , an d connec t th e contro l bo x
connectors .
32. Instal l th e ai r cleane r assembly .
33. Instal l th e stru t bar .
34 . Refil l th e transmissio n wit h oi l (se e pag e 13-3 ).
35 . Connec t th e batter y positiv e ( + ) an d negativ e (- )
cable s t o th e battery .
36 . Inspec t th e rea r cambe r (se e sectio n 18 ).
37 . Chec k th e clutc h operation .
38 . Shif t th e transmission , an d chec k fo r smoot h opera -
tion.
Corrosio n resistan t bolt/nu tTRANSMISSIO N HOUSIN GMOUNTING BOLT S12 x 1.2 5 mm65 N- m (6. 5 kg-m , 4 7 Ib-ft )
CONTROL BO X
BACK-U P LIGH TSWITC HCONNECTO R
WIR E
HARNES S
HOLDE R
NEUTRA L
POSITIONSWITCHCONNECTO R
STARTE R
MOTORCABLE S DIFFERENTIA
L
SPEE D SENSO R
VSSCONNECTO R
JUMPE R
CONNECTO R
TRANSMISSIO N MOUNTIN GBOLT
TRANSMISSIO N MOUNTIN GBOLTS10 x 1.2 5 mm60 N- m (6. 0 kg-m , 4 3 Ib-ft )
12 x 1.2 5 mm95 N- m (9. 5 kg-m . 6 9 Ib-ft )
12 x 1.2 5 mm75 N- m (7. 5 kg-m , 5 4 Ib-ft )
12 x 1.2 5 mm75 N- m (7. 5 kg-m , 5 4 Ib-ft )
TRANSMISSIO NGROUND CABL E
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Special Tools

Ref.
No

Tool Number


Description

Qty


Page Reference

07GAD—SD40101

07MAD—PR90100

07MAD—PR90200

07MAJ—PR90100

07746—0010500
07746—0010600

07749—0010000

07947—S090100 or

07947—SD90101
07965—SA00600 Bearing Driver Attachment
Attachment, 45 x 55 mm I.D.

Pilot, 32 x 50 mm

Differential Inspection Tools
Attachment, 62 x 68 mm
Attachment, 72 x 75 mm

Driver

Seal Driver Attachment
Bearing Driver Attachment
1

1

1
1
1

1

1
1

1
15-12

15-5

15-14

15-4 , 6, 9, 11, 13


15-12

15-13

15-12,13,
14

15-14

15-14
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Differential

Illustrated Index

NOTE:
If the parts marked with an asterisk (*) are replaced, the bearing preload must be adjusted (see page 15-12).
If replacement is required, always replace the limited slip differential clutch set.

*75 mm THRUST SHIM
Selection, Adjustment, page 15-13

Adjustment, page
*TAPERED ROLLER BEARING

Replacement, page 15-5
Inspect for wear and damage.
DIFFERENTIAL HOUSING COVER
Inspect (or wear and damage.
SPRING PLATECLUTCH DISC
65 mm SHIM

Adjustment, page 15-8

*BEARING OUTER RACE
Replacement, page 15-12
Inspect for wear and damage.

FINAL DRIVEN GEAR

Inspect for wear and damage.
WASHER

112 mm SHIM

Adjustment.

page 15-11 CENTRAL GEAR
Inspect for wear and damage.
WASHERS
102 mm WASHER THRUST NEEDLE BEARINGSInspect for wear and damage.
CLUTCH DISCS

112 mm SHIM
65 mm SHIM

WASHER
CARRIER ASSEMBLY
Inspect for wear and damage.
STOPPER PLATE *TAPERED ROLLER BEARINGReplacement, page 15-5
Inspect for wear and damage.
*90 mm WASHER
CLUTCH PLATES
THRUST NEEDLE BEARINGInspect for wear and damage.
DIFFERENTIAL HOUSING
Inspect for wear and damage.
8 x 1.0 mm SPECIAL BOLTS
40 N·m (4.0 kg-m. 29 Ib-ft) *BEARING OUTER RACEReplacement, page 15-12
Inspect for wear and damage. *OIL GUIDE RING
Replacement, page 15-12ProCarManuals.com

Preset Torqu e
Inspectio n
On-Car:
1 . Bloc k th e fron t wheels .
2 . Shif t t o low gear .
3 . Lif t u p rea r wheels , an d plac e th e safet y stan d (Lif t
an d Suppor t Points , se e sectio n 1 ).
4 . Measur e prese t torqu e clockwis e usin g a torqu e
wrenc h a s shown .
Standard: 120-280 N-m (12-28 kg-m,
87-20 3 Ib-ft )
Servic e Limit : 6 0 N- m (6 kg-m , 4 3 Ib-ft )
TORQU E WRENC H
RIGH T REA R WHEE L
SAFETY STAN D
5. I f prese t torqu e is les s tha n th e servic e limit , replac e
th e limite d sli p differentia l clutc h set .
NOTE : Adjus t th e 6 5 m m (differentia l housin g cove r
side ) an d 11 2 m m (differentia l housin g cove r side )
shim s wheneve r th e clutc h se t i s replaced . Assembly
:
Plac e on e specia l too l i n a vise . Plac e th e lef t sid e
o f th e differentia l assembl y o n th e specia l tool , the n
prese t th e differentia l wit h 3- 5 rotations , counter -
clockwise .
DIFFERENTIA L
INSPECTIO N TOOL S
07MAJ-PR90100
2. Measur e prese t torqu e counterclockwis e usin g a tor -
qu e wrenc h a s shown.
Standard :
60-140 N- m (6-1 4 kg-m ,
43-10 1 Ib-ft )
Servic e Limit : 3 0 N- m (3 kg-m , 2 2 Ib-ft )
TORQU E WRENC H
DIFFERENTIA L
INSPECTIO N TOOL S
07MAJ-PR90100
3 . I f prese t torqu e is les s tha n th e servic e limit , replac e
th e limite d sli p differentia l clutc h set .
NOTE : Adjus t th e 6 5 m m an d 11 2 m m shim s
wheneve r th e clutc h se t i s replaced .
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Bearing
Replacemen t
NOTE:
• Th e bearin g an d oute r rac e shoul d b e replace d a s a
set .
• Inspec t an d adjus t th e bearin g preloa d wheneve r th e
bearin g i s replaced .
1 . Remov e th e tapere d rolle r bearing s usin g th e bear -
ing pullers .
BEARIN G PULLE R(Commerciall yavailable)
TAPERE D ROLLE R
BEARIN G
BEARIN G PULLE R
(Commerciall yavailable)
TAPERE D ROLLE R
BEARIN G
2. Instal l th e tapere d rolle r bearing s usin g a specia l too l
an d a pres s a s shown .
NOTE : Pres s th e tapere d rolle r bearing s squarel y
until the y botto m agains t th e case .
Transmissio n Housin g Side :
STEE L PLAT E
PRESS
TAPERE D ROLLE R
BEARIN G
Clutch Housin g Side :
STEE L PLAT E
TAPERE D ROLLE R
BEARIN G
ATTACHMENT ,45 x 5 5 m m I.D .07MA D-PR9010 0
PRESS
ATTACHMENT ,45 x 5 5 m m I.D .07MA D-PR9010 0
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Differential
Disassembl y
1. Hol d th e differentia l i n a benc h vis e usin g a specia l
tool , the n remov e th e differentia l housin g mountin g
bolt s in a crisscros s patter n in severa l steps .
BENCH VIS E
DIFFERENTIA L
INSPECTIO N TOOL S
07MAJ-PR9010 0
2. Remov e th e differentia l housing , stoppe r plate ,
washer , thrus t needl e bearing , an d 6 5 m m shim .
DIFFERENTIA L
HOUSIN G
WASHE R
65 m m SHI M
STOPPE RPLATE
THRUS T NEEDL E
BEARIN G
3. Remov e th e 11 2 m m shim , clutc h discs , clutc h
plates , an d 10 2 m m washer .
112 m mSHI M
CLUTC H PLATE S CLUTC
H DISC S
10 2 m m WASHE R
4. Remov e th e part s show n below .
WASHER S
65 m m SHI M
CARRIE RASSEMBL Y
THRUS T NEEDL E
BEARIN G
CENTRA L GEA R
THRUS T NEEDL E
BEARIN G
112 m m SHI M
CLUTC H DIS C
-SPRIN GPLATE
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