1991 ACURA NSX Service Repair Manual

Rear Dampe r
Installatio n
1. Repositio n th e dampe r assembl y betwee n th e
fram e an d knuckle .
2 . Instal l th e stabilize r lin k an d connec t th e stabilize r
bar.
3. Loosel y instal l a ne w self-lockin g nut .
4 . Hol d th e bal l pi n o f th e stabilize r lin k wit h a he x
wrench , the n tighte n th e self-lockin g nut .
5 . Loosel y instal l a ne w dampe r mountin g nut .
NOTE : Th e dampe r mountin g nut s shoul d b e
tightene d wit h th e dampe r unde r vehicl e load .
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6. Install the new self-locking nuts on the top of the

damper assembly.

7. Tighten the damper mounting nut to the specified

torque.

8. Secure the damper assembly to the frame with the

self-locking nuts.

9. Install the strut brace.

10. Install the rear hatch glass trim.

11. Install the engine cover support rod onto the strut

brace.

12. Install the rear wheels.ProCarManuals.com

Special Tools

Ref.
No.

Tool Number

07HAA – SG00100 or
07HAA – SG00101
07HAE – SG00100
07HAJ – SG00100or
07HAJ – SG0010B

07JAG – SD40100

07KA2 – 001000A

07914 – SA50000
Description

Bleeder T-Wrench

Brake Spring Compressor
ALB Checker (US)
Pushrod Adjustment Gauge
Auxiliary Window Switch
Snap Ring Pliers
Qty

1
1
1
1
1
1
Page Reference
19-62('91-'92)('93-'96),64('91-'92)('93-'96),65('91-'92)
('93-'96),69('91-'92)('93-'96)

19-21, 24

19-41, 43, 64('91-'92)('93-'96),

69('91-'92)('93-'96)

19-15

19-65('91-'92)('93-'96)

19-21,
24
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Illustrated Index

The accumulator contains high-pressure nitrogen gas; do not puncture, expose to flame or attempt to
disassemble the accumulator or it may explode; severe personal injury may result.

HYDRAULIC SYSTEM
Relieving Accumulator/line pressure, page 19-62 ('91-'92) ('93-'96)

MASTER CYLINDER
Index/Torque, page 19-12

Inspection, page 19-13

ABS CONTROL UNIT Replacement, page 19-70

BRAKE BOOSTER

Tests, page 19-14 Pushrod clearance adjustment, page 19-15

UNDER-HOOD

RELAY BOX B

UNDER-HOOD
FUSE/RELAY BOX

REAR WHEEL SENSOR

Inspection, page 19-71

Replacement, page 19-72
POWER UNIT
Torque/Inspection, page 19-66
ACCUMULATOR/PRESSURE SWITCHIndex/Torque, page 19-67 FRONT WHEEL SENSOR
Inspection, page 19-71
Replacement, page 19-72
MODULATOR/SOLENOID UNIT

Index/Torque, page 19-63 ('91-'92) ('93-'96)
Solenoid Leak Test, page 19-64 ('91-'92) ('93-'96)
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Pedal Heigh t
Adjustmen t
1. Loose n th e brak e switc h locknut , an d bac k of f th e
brak e switc h unti l i t i s n o longe r touchin g th e brak e
pedal .
2 . Loose n th e pushro d locknut , an d scre w th e pushro d
in o r ou t wit h plier s unti l th e standar d peda l heigh t
from th e floo r i s 21 8 m m (8. 6 in) . Afte r adjust -
ment, tighte n th e locknu t firmly .
3. Scre w in th e brak e switc h unti l it s plunge r i s full y
depresse d (threade d en d touchin g th e pa d o n th e
peda l arm) . The n bac k of f th e switc h 1/ 2 turn , an d
tighte n th e locknu t firmly .
CAUTION : Chec k tha t th e brak e light s g o of f
whe n th e peda l i s released .
NOTE : D o no t adjus t th e peda l heigh t wit h th e
pushro d depressed .
Parking Brak e
Adjustmen t
1. Remov e th e consol e mat , th e fou r screw s an d th e
consol e box .
NOTE : Afte r rea r brak e calipe r servicing , loose n
th e parkin g brak e adjustin g nut , star t th e engine ,
an d depres s th e brak e peda l severa l time s t o se t
the self-adjustin g brake s befor e adjustin g th e brak e
pedal .
Block th e fron t wheel s befor e jackin g
u p eac h sid e o f th e car .
2 . Rais e th e rea r wheel s of f th e ground .
3 . Mak e sur e th e leve r o f th e rea r brak e calipe r con -
tact s th e brak e calipe r pin .
4 . Pul l th e parkin g brak e leve r u p on e notch .
5 . Tighte n th e adjustin g nu t unti l th e rea r wheel s dra g
slightl y whe n turned .
6. Releas e th e parkin g lever , an d chec k tha t th e rea r
wheel s d o no t dra g whe n turned . Readjus t i f
necessary .
7. Wit h th e equalize r properl y adjusted , th e rea r
brake s shoul d b e full y applie d whe n th e parkin g
brak e leve r i s pulle d u p 1 0 t o 1 4 clicks .
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Front Brake s
Index/Inspectio n
• Neve r us e a n ai r hos e o r dr y brus h t o clea n brak e
assemblies .
• Us e a n OSHA-approve d vacuu m cleane r t o avoi d
breathin g brak e dust .
• Contaminate d brak e disc s o r pad s reduc e stoppin g
ability .
NOTE :
• Coa t piston , pisto n seal , an d calipe r bor e wit h clea n
brake fluid .
• Replac e al l rubber parts wit h ne w one s wheneve r
disassembled .
CAUTION:
• D o no t spil l brak e flui d o n th e car ; i t ma y damag e
th e paint ; i f brak e flui d doe s contac t th e paint ,
was h i t of f immediatel y wit h water .
• T o preven t spills , cove r th e hos e joint s wit h rag s
o r sho p towels .
• Clea n al l part s in brak e flui d an d ai r dry ; blo w ou t
al l passage s wit h compresse d air .
• Befor e reassembling , chec k tha t al l part s ar e
fre e o f dus t an d othe r foreig n particles .
• Replac e part s wit h ne w one s wheneve r
specifie d t o d o so .
• Mak e sur e n o dir t o r othe r foreig n matte r i s
allowe d t o contaminat e th e brak e fluid .
• D o no t reus e th e draine d fluid . Us e onl y clea n
DO T 3 o r 4 brak e fluid .
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Front Brak e Pad s
Inspection/Replacemen t
• Neve r us e a n ai r hos e o r dr y brus h t o clea n brak e
assemblies .
• Us e a n OSHA-approve d vacuu m cleane r t o avoi d
breathin g brak e dust .
1 . Loose n th e fron t whee l nut s slightly , the n rais e eac h
sid e o f th e ca r an d suppor t i t o n safet y stand s (se e
pag e 1-9 throug h 1-11 ). Remov e th e fron t wheels .
2 . I f th e brak e pa d thicknes s i s les s tha n servic e limi t
a t ste p 5 , replac e th e fron t pad s a s a set . 3
. Remov e th e tw o brak e hos e mountin g bolts . Remov e
the tw o calipe r mountin g bolts , an d mov e th e calipe r
out o f th e way .
CAUTION : Suppor t th e calipe r wit h a piec e o f wir e
s o tha t i t doe s no t han g fro m th e brak e hose .
4 . Remov e th e pa d shims , pa d retainer s an d brak e
pads .
5 . Usin g vernie r calipers , measur e th e thicknes s o f eac h
brak e pa d lining .
Brak e Pa d Thickness :
Standard : 11. 0 m m (0.4 3 in ) max .
Servic e Limit : 1. 6 m m (0.0 6 in )
NOTE : Measuremen t doe s no t includ e pa d backin g
thickness .
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6. Clea n th e calipe r thoroughly ; remov e an y rust , an d
chec k fo r groove s an d cracks .
7. Instal l th e pa d retainers .
11. Pus h i n th e piston s s o tha t th e calipe r wil l fi t ove r
the brak e pads .
12. Se t th e calipe r dow n int o position , the n instal l th e
brak e hos e mountin g bolt s an d th e calipe r moun -
ting bolts . Tighte n th e bolt s to th e specifie d torque .
8. Appl y Molykote ® M7 7 t o bot h side s o f inne r shi m
A an d th e bac k o f th e pads . Wip e exces s greas e of f
th e shims .
9 . Instal l th e brak e pads .
• Whe n reusin g th e pads , alway s reinstal l th e
brak e pad s i n thei r origina l position s t o preven t
los s o f brakin g efficiency .
• Contaminate d brak e disc s o r pad s reduc e stop -
pin g ability . Kee p greas e of f th e brak e disc s o r
pads .
NOTE :
• Instal l th e inne r pa d wit h it s wea r indicato r fac -
ing upward .
• Appl y Molykote ® M7 7 t o th e shim s (se e pag e
19-5 ). Wip e exces s greas e of f th e shims .
10 . Instal l th e brak e pa d shim s correctly . 13
. Depres s th e brak e peda l severa l time s t o mak e sur e
the brake s work , the n test-driv e th e car .
NOTE : Engagemen t of the brak e ma y requir e a
greate r peda l strok e immediatel y afte r th e brak e
pad s hav e bee n replace d a s a set . Severa l applica -
tion s of the brak e peda l wil l restor e th e norma l
peda l stroke .
14. Instal l th e fron t wheel s an d torqu e th e whee l nuts .
NOTE : Clea n th e matin g surfac e o f th e whee l an d
hu b befor e installin g th e wheel .
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