1997 ACURA NSX Service Repair Manual

Rear Dampe r
Reassembl y
1. Instal l th e dampe r uni t o n a sprin g compressor .
2. Assembl e th e dampe r i n revers e orde r o f remova l
excep t th e dampe r mountin g washe r an d self-lock -
ing nut .
NOTE : Alig n th e botto m o f dampe r sprin g an d
sprin g lowe r seat .
STRU T SPRIN G COMPRESSOR :(Commercially available )BRANICK T/N MST-580A , T/ N 720 0 o r equivalen t
SPRING LOWE R SEA T
3. Positio n th e dampe r mountin g bas e s o tha t th e
angl e o f th e stu d bolt s i s a s shown .
NOTE : Follo w th e manufacture' s instructions .
DAMPER MOUNTIN G BAS E
Mountin g bol t directio n
4. Compres s th e dampe r spring .
CAUTION : D o no t compres s th e sprin g mor e tha n
necessar y t o instal l th e self-lockin g nut .
5 . Instal l th e dampe r mountin g rubbe r an d dampe r
mountin g washer , an d loosel y instal l a ne w self -
lockin g nut .
6 . Hol d th e dampe r shaft , an d tighte n th e self-lockin g
nut.SELF-LOCKIN G NU T10 x 1.2 5 mmReplace .29 N- m (3. 0 kgf-m , 2 2 Ibf-ft )
DAMPE RMOUNTIN G WASHE R
Stud bol tpositio n
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Installation

1. Reposition the damper assembly between the

frame and knuckle.

SELF-LOCKING NUT

12 x
1.25
mm

Replace.

STABILIZER BAR

STABILIZER LINK

Corrosion resistant bolt/nut

2. Install the stabilizer link and connect the stabilizer

bar.

3. Loosely install a new self-locking nut.

4. Hold the ball pin of the stabilizer link with a hex

wrench, then tighten the self-locking nut.

DAMPER MOUNTING NUT

12 x
1.25
mm

Replace.

93 N-m (9.5 kgf-m, 69 Ibf-ft)

WRENCH

HEX WRENCH

Corrosion resistant bolt/nut

5. Loosely install a new damper mounting nut.

NOTE: The damper mounting nuts should be tight-

ened with the damper under vehicle load.
SELF-LOCKING NUT

12 x
1.25
mm

Replace.

83 N-m (8.5 kgf-m, 61 Ibf-ft)
STABILIZER LINKProCarManuals.com

6. Install the new self-locking nuts on the top of the

damper assembly.

STRUT BRACE SELF-LOCKING NUT 10 x 1.25 mm

Replace.

53 N-m (5.4 kgf-m, 39 Ibf-ft)

Corrosion resistant bolt/nut

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 (NSX-T model only).

10. Install the rear hatch glass trim.

TAPPING SCREW REAR HATCH GLASS

11. Install the engine cover support rod onto the strut

brace.

12. Install the rear wheels.ProCarManuals.com

Special Tool s
19-77, 19-79, 19-80, 19-84
19-22, 19-25
19-42, 19-44, 19-79, 19-84
19-16
19-80
19-48, 19-10c
19-22, 19-25
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Illustrated Inde x
The accumulato r contain s high-pressur e nitroge n gas ; d o no t puncture , expos e t o flam e o r attemp t t o dis -
assembl e th e accumulato r o r i t ma y explode ; sever e persona l injur y ma y result .
HYDRAULI C SYSTE M
Relievin g Accumulator/lin e pressure , pag e 19-7 7
AB S CONTRO L UNI T
Replacement , pag e 19-8 5 MASTE
R CYLINDE R
Index/Torque , pag e 19-1 3
Inspection , pag e 19-1 4
UNDER-HOO D
RELAY BO X B
BRAK E BOOSTE R
Tests , pag e 19-1 5
Pushro d clearanc e adjustment , pag e 19-1 6
UNDER-HOO D
FUSE/RELA Y BO X
REAR WHEE L SENSO R
Inspection , pag e 19-8 6
Replacement , pag e 19-8 7
POWE R UNI T
Torque/Inspection , pag e 19-81
ACCUMULATOR/PRESSUR E SWITC H
Index/Torque , pag e 19-8 2 FRON
T WHEE L SENSO R
Inspection , pag e 19-8 6
Replacement , pag e 19-8 7
MODULATOR/SOLENOI D UNI TIndex/Torque , pag e 19-7 8
Solenoi d Lea k Test , pag e 19-7 9
19-3
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Inspection and Adjustment

Brake System Rubber Parts and Brake Booster

Brake Booster

Check brake operation by applying the brakes.

If the brakes do not work properly, check the brake

booster. Replace the brake booster as an assembly if

it does not work properly or if there are signs of leak-

age.

Piston Cup and Pressure Cup Inspection

• Check brake operation by applying the brakes.

Visually check for damage or signs of fluid leakage.

Replace the master cylinder as an assembly if the

pedal does not work properly or if there is damage

or signs of fluid leakage.

• Check for a difference in brake pedal stroke

between quick and slow brake applications.

Replace the master cylinder if there is a difference

in pedal stroke.
Brake Hoses

Visually check for damage or signs of fluid leakage.

Replace the brake hose with a new one if it is dam-

aged or leaking.

Caliper Piston Seal and Piston Boots

Check brake operation by applying the brakes.

Visually check for damage or signs of fluid leakage.

If the pedal does not operate properly, the brakes

drag, or there is damage or signs of fluid leakage,

disassemble and inspect the brake caliper. Replace

the boots and seals with new ones whenever the

brake caliper is disassembled.ProCarManuals.com

Pedal Heigh t
Adjustmen t
1. Lo osen 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 .
PUSHRO D
LOCKNU TBRAKE SWITC H
BRAKE SWITC H LOCKNU T
2. Loose n th e pushro d locknut , an d scre w th e pushro d
i n o r ou t wit h plier s unti l th e standar d peda l heigh t
fro m th e floo r i s 21 8 m m (8 9/1 6 in) . D o no t adjus t
th e peda l heigh t wit h th e pushro d depressed . Afte r
adjustment , tighte n th e locknu t firmly .
PUSHRO D LOCKNU T
1 5 N- m (1. 5 kgf-m , 1 1 Ibf-ft )
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 . Chec k tha t th e brak e
light s g o of f whe n th e peda l i s released .
LOCKNUT
THREADE DEND
Brak e Peda l Pla y Inspection :
Sto p th e engine , an d inspec t th e pla y b y pushin g th e
peda l b y hand . I f th e peda l fre e pla y i s insufficient , i t
ma y resul t i n brak e drag .
Brake Peda l Play : 1 - 5 m m (1/1 6 - 3/1 6 in )
Parkin g Brak e
Adjustmen t
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 th e self -
adjustin g brake s befor e adjustin g th e parkin g brake .
1 . Remov e th e consol e mat , th e fou r screw s an d th e
consol e box .
CONSOL E BO X
ADJUSTIN G NU T
2. Bloc k th e fron t wheels , the n 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 brake 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
brake s d o no t dra g whe n turned . Readjus t i f neces -
sary.
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 to 1 4 clicks .
PARKIN G BRAK E LEVE R
BRAKE CALIPE R PI N
MA T
SCRE W
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Front Brakes

Index/Inspection

• Never use an air hose or dry brush to clean brake

assemblies.

• Use an OSHA-approved vacuum cleaner to avoid

breathing brake dust.

• Contaminated brake discs or pads reduce stopping

ability.

NOTE:

• Coat piston, piston seal, and caliper bore with clean

brake fluid.

• Replace all rubber parts with new ones whenever

disassembled
CAUTION:

• Do not spill brake fluid on the vehicle; it may damage

the paint; if brake fluid does contact the paint, wash

it off immediately with water.

• To prevent spills, cover the hose joints with rags or

shop towels.

• Clean all parts in brake fluid and air dry; blow out all

passages with compressed air.

• Before reassembling, check that all parts are free of

dust and other foreign particles.

• Replace parts with new ones whenever specified to do

so.

• Make sure no dirt or other foreign matter is allowed

to contaminate the brake fluid.

• Always use Genuine Honda DOT 3 Brake Fluid. Using a

non-Honda brake fluid can cause corrosion and

decrease the life of the system.ProCarManuals.com