ACURA NSX 1997 Service Repair Manual

Oil Cooler , Oi l Filte r Bas e
Illustrate d Inde x
NOTE :
• Us e ne w O-ring s whe n reassembling .
• Appl y oi l t o O-ring s befor e installation .
• Us e liqui d gasket , Par t No . 0871 8-000 1 o r 0871 8-0003 .OIL COOLE R CENTE R BOL T
4 9 N- m (5. 0 kgf-m , 3 6 Ibf-ft )
2 m m PI N
SPRIN G
O-RIN G
Replac e
RELIEF VALV EValve mus t slid e freel y i n bol t bore .If valv e i s scored , replac e it .
SPECIA L BOLT S
8 x 1.2 5 mm22 N- m (2. 2 kgf-m ,
1 6 Ibf-ft )
Replace .
OI L FILTE R BAS E ENGIN
E OI L COOLE R
O-RIN G
Replace .
OI L FILTE R
2 2 N- m (2. 2 kgf- m
1 6 Ibf-ft )
Replacement , 8- 5 ENGIN
E OI L
PRESSUR E SWITC H
1 8 N- m (1. 8 kgf-m , 1 3 Ibf-ft )
1/ 8 in . BSP T (Britis h Standar d
Pip e Taper ) 2 8 Threads/inch .
Use prope r liqui d gasket .
8 x 1.2 5 mm22 N- m (2. 2 kgf-m , 1 6 Ibf-ft )
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Special Tool s
9-4, 9-5 , 9-6 , 9-7
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Intake Manifol d
Replacemen t
NOTE: Us e ne w O-ring s an d gasket s whe n reassembling .
CAUTION:
• Chec k fo r fold s o r scratche s o n th e surfac e o f th e gasket .
• Replac e wit h a ne w gaske t i f damaged .
6 x 1. 0 m m12 N- m (1. 2 kgf-m , 8. 7 Ibf-ft )
5 x 1. 0 m m8 N- m (0. 8 kgf-m , 6 Ibf-ft )
INTAK E AI R TEMPERATUR E
(IAT ) SENSO R
6 x 1. 0 m m12 N- m (1. 2 kgf-m ,
8. 7 Ibf-ft )
IGNITIO N CONTRO LMODULE (ICM )
6 x 1. 0 m m12 N- m (1. 2 kgf-m ,8.7 Ibf-ft )
8 x 1.2 5 mm22 N- m (2. 2 kgf-m ,16 Ibf-ft )
THROTTL E
BOD Y
8 x 1.2 5 mm22 N- m (2. 2 kgf- m
1 6 Ibf-ft )
INTAK E MANIFOL DPLATE
6 x 1. 0 m m12 N- m (1. 2 kgf-m , 8. 7 Ibf-ft )
EXHAUS T GA S RECIRCULATIO N
(EGR ) POR T
8 x 1.2 5 mm22 N- m (2. 2 kgf-m , 1 6 Ibf-ft )
GASKE T
Replace .
INTAKE MANIFOL D
Replac e i f cracke d o r
if matin g surface s ar edamaged .
INTAK E AI R BYPAS S (IAB )
VALV E BOD Y
INTAK E MANIFOL DCHAMBER
WASHE R
Replace .
8 x 1.2 5 mm22 N- m (2. 2 kgf-m , 1 6 Ibf-ft )
EG R PIP E
GASKET SReplace.
6 x 1. 0 m m12 N- m (1. 2 kgf-m ,
8. 7 Ibf-ft )
INSULATO R
O-RINGReplace .
GASKET
Replace .
GASKE
T
Replace .
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Exhaust Manifol d
Replacemen t
NOTE: Us e ne w gasket s an d self-lockin g nuts .
M/T :
GASKE TReplace .
FRONT EXHAUS T
MANIFOL D
8 x 1.2 5 mm22 N- m (2. 2 kgf- m
1 6 Ibf-ft )
COVE R COVE
R
8 x 1.2 5 mm22 N- m (2. 2 kgf-m ,
1 6 Ibf-ft )
COVE R
REAR PRIMAR Y
HEATE D OXYGE N
SENSO R (REA R
PRIMAR Y HO2S )
4 4 N- m (4. 5 kgf-m , 3 3 Ibf-ft )
• B e carefu l no t t o damage .
• Us e th e specia l too l whe nremovin g an d installing .
8 x 1.2 5 mm31 N- m (3. 2 kgf-m , 2 3 Ibf-ft )Replace .
8 x 1.2 5 mm22 N- m (2. 2 kgf-m ,
,1 6 Ibf-ft ) FRON
T PRIMAR Y HEATE D
OXYGE N SENSO R (FRON T
PRIMAR Y HO2S )
4 4 N- m (4. 5 kgf-m , 3 3 Ibf-ft )
• B e carefu l no t t o damage .
• Us e th e specia l too l whe nremovin g an d installing .
REAR EXHAUS TMANIFOLD
GASKETReplace .
8 x 1.2 5 mm31 N- m (3. 2 kgf-m , 2 3 Ibf-ft )Replace .
8 x 1.2 5 mm22 N- m (2. 2 kgf-m ,
1 6 Ibf-ft )COVE R
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A/T:
FRON T PRIMAR Y HO2 S
4 4 N- m (4. 5 kgf-m , 3 3 Ibf-ft )
• B e carefu l no t t o damage .
• Us e th e specia l too l whe nremovin g an d installing .
8 x 1.2 5 mm22 N- m (2. 2 kgf-m ,16 Ibf-ft ) REA
R PRIMAR Y
HO2 S
4 4 N- m (4. 5 kgf-m ,
3 3 Ibf-ft )
• B e carefu l no t t o damage .
• Us e th e specia l too l whe nremovin g an d installing .
6 x 1. 0 m m12 N- m (1. 2 kgf-m ,
8. 7 Ibf-ft )
6 x 1. 0 m m12 N- m (1. 2 kgf-m ,
8. 7 Ibf-ft )
SELF-LOCKING
NUT8 x 1.2 5 mm30 N- m (3. 1 kgf-m ,
2 2 Ibf-ft )
Apply oi l t o th enut threads .Replace .
FRONT EXHAUS T MANIFOL D
8 x 1.2 5 mm22 N- m (2. 2 kgf-m ,
1 6 Ibf-ft )
EXHAUS T MANIFOL D
COVER
EXHAUS TMANIFOL DCOVERS
8 x 1.2 5 mm22 N- m (2. 2 kgf-m ,
1 6 Ibf-ft ) REA
R EXHAUS T MANIFOL D
SELF-LOCKIN G NUT S
8 x 1.2 5 mm30 N- m (3. 1 kgf-m ,
2 2 Ibf-ft )
Apply oi l t o th enut threads .Replace .
GASKET
Replace .
GASKETReplace .
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Exhaust Pip e an d Muffle r
Replacemen t
NOTE: Us e ne w gasket s an d self-lockin g nut s whe n reassembling .
M/T:
REAR SECONDARY HEATEDOXYGEN SENSOR (REARSECONDARY HO2S )
4 4 N- m (4.5 kgf-m , 3 3 Ibf-ft )
• B e carefu l no t t o
damage .
• Us e th e specia l too l
fo r remova l an d
installation . LON
G BOL T
8 x 1.2 5 mm22 N- m (2. 2 kgf-m , 1 6 Ibf-ft )Replace .Tighten th e flang e bolts in steps ,
alternatin g side-to-side .
MUFFLER
SHORT BOL T8 x 1.2 5 mm22 N- m (2. 2 kgf-m ,16 Ibf-ft )Replace .Tighten th e flang e bolt s
i n steps , alternatin g
side-to-side .
GASKETReplace .
FRON T THRE E WA Y
CATALYTI C CONVERTE R(TWOInspectio n a s show n
pag e 9-7.GASKE TReplace .
REAR TW CInspectio n a s show n
page 9-7. REA
R SECONDAR Y
HEATED OXYGE NSENSOR (REA RSECONDAR Y HO2S )44 N-m (4.5 kgf-m,33 Ibf-ft)• B e carefu l no t t o
damage .
• Us e th e specia l too lfor remova l an dinstallation .
6 x 1. 0 m m9.8 N- m (1. 0 kgf-m ,
7. 2 Ibf-ft )
GASKET SReplace.
LON G BOL T
8 x 1.2 5 mm22 N- m (2. 2 kgf-m , 1 6 Ibf-ft )Replace .Tighten th e flang e bolt s i n steps ,
alternatin g side-to-side .
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A/T:
GASKET SReplace.
REAR SECONDAR Y
HO2 S
4 4 N- m (4. 5 kgf-m , 3 3 Ibf-ft )
• B e carefu l no t t o
damage .
• Us e th e specia l too lfor remova l an dinstallation .
SELF-LOCKIN G NUT S10 x 1.2 5 m m33 N- m (3. 4 kgf-m , 2 5 Ibf-ft )Replace .
JOINT PIP E
LON G BOL T
FRON T EXHAUS T
PIP E A MUFFLE
R
SELF-LOCKIN G NU T
8 x 1.2 5 mm22 N- m (2. 2 kgf-m ,
1 6 Ibf-ft )
Replace .Tighten th e flang e nut sin steps , alternatin gside-to-side .
THREE WA Y CATALYTI C
CONVERTER S (TWCs )
Inspect a s show nbelow .
GASKET S
Replace . FRON
T SECONDAR Y
HO2 S
4 4 N- m (4. 5 kgf-m , 3 3 Ibf-ft )
• B e carefu l no t t o
damage .
• Us e th e specia l too lfor remova l an dinstallation .
JOINTPIPE
GASKE T
Replace .
LON G BOL T
GASKE T
Replace .
SELF-LOCKIN G NU T
8 x 1.2 5 m m22 N- m (2. 2 kgf-m , 1 6 Ibf-ft )Replace .Tighten th e flang e nut s i n steps ,alternatin g side-to-side .
SHORT BOL T
6 x 1. 0 m m9.8 N- m (1. 0 kgf-m , 7. 2 Ibf-ft )
SELF-LOCKIN G NUT S8 x 1.2 5 mm22 N- m (2. 2 kgf-m , 1 6 Ibf-ft )
Replace .
Tighten th e flang e nut s i n steps ,alternatin g side-to-side .
SELF-LOCKIN G NUT S
5 4 N- m (5. 5 kgf-m , 4 0 Ibf-ft )
Replace .
TWC Inspection :
Usin g a flashlight , mak e a visua l chec k fo r plugging , meltin g
o r crackin g o f th e catalyst .
TWC
FLASHLIGH T
GASKE
T
Replace .
REA
R EXHAUS T
PIP E AGASKE
T
Replace .
LON
G
BOL T
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Cooling
Illustrate d Inde x
Syste m is unde r hig h pressur e whe n th e
engin e i s hot . T o avoi d dange r o f releasin g scaldin g
engin e coolant , remov e th e ca p onl y whe n th e engin e i s
cool .
Tota l Coolin g Syste m Capacity : Includin g expansio n
tank 2. 1 (2. 2 U S qt , 1. 8 Im p qt )
M/T : 16. 0 (17. 0 US qt , 14. 1 Imp qt )
A/T : 16. 5 (17. 4 US qt , 14. 5 Imp qt )
NOTE :
• Chec k al l coolin g syste m hose s fo r damage ,
leak s o r deterioratio n an d replac e i f necessary .
• Chec k al l hos e clamp s an d retighte n i f
necessary .
• Us e ne w O-ring s whe n reassembling .
RADIATOREngine coolan t refillin g an d
bleeding , pag e 10- 5
Leak test , pag e 10- 8
Inspec t soldere d joint s an d
seam s fo r leaks .
Blo w ou t dir t fro m betwee n
cor e fin s wit h compresse d air .
I f insects , etc. , ar e cloggin g
radiator , was h the m of f wit h
low-pressur e water .
Radiator , Wate r Pipe s an d Hoses :
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EXPANSION TAN K
Refillin g an d bleeding , pag e 10- 5
Lea k Test , pag e 10- 8
ENGINE OI L
COOLE R PIP E
AUTOMATI C TRANSMISSIO N
FLUI D (ATF ) COOLE R
CAPTest , pag e 10- 8
ENGIN EOIL COOLE R
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Radiator
Replacemen t
1. Remov e th e spar e tire .
2 . Drai n th e radiato r (se e pag e 10- 5 thr u 10-7 ).
3 . Disconnec t th e fa n moto r connecto r an d th e
resisto r connector .
4 . Remov e th e uppe r an d lowe r hose s fro m th e
radiator .
5 . Remov e th e bracke t an d th e radiator . Instal
l th e radiato r i n th e revers e orde r o f removal :
NOTE:
• Se t th e uppe r an d lowe r cushion s securely .
• Fil l th e radiato r an d blee d th e ai r (se e pag e 10- 5
thr u 10-7 ).
6 x 1. 0 m m9.8 N- m (1. 0 kgf-m , 7. 2 Ibf-ft )
RADIATO R BRACKE T
UPPE R CUSHION S
RESISTO R CONNECTO R
FA N MOTO R
CONNECTO R
RESISTO R CONNECTO R
LOWE R CUSHION S
FAN MOTO R
CONNECTO R
UPPE R HOS E
LOWER HOS E
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