1991 ACURA NSX Service Repair Manual

Seat Belts

Replacement

CAUTION: Check the seat belts for damage and replace them if necessary. Be careful not to damage them durinc

removal and installation.

NOTE: Remove the anchor bolts with a 1 7 mm socket or box-end wrench.1. To remove the seat belts, first remove the seats (page 20-38). NOTE: Take care not to scratch the interior trim, dashboard and center armrest.
2. Remove the cap and remove the lower anchor bolt.
3. Remove the center anchor bolt, and disconnect the connector.
4. Remove the rear pillar trim panel and side panel (page 20-37). 5. Remove the upper anchor bolt and retractor bolts. RETRACTOR BOLT

7/16-20 UNF

32 N·m (3.2 kg-m, 23 Ib-ft) 6 x 1.0 mm
10 N·m (1.0 kg-m, 7.2 Ib-ft)
TOOTHED
LOCK WASHER
SPRING WASHER TOOTHEDLOCK WASHER
SPRING WASHER
PROTECTOR

BAG

* CENTER AN CHOR BOLT
7/16-20 UNF

32 N·m (3.2 kg-m, 23 Ib-ft)
6. Check that the retractor locking mechanism func-
tions as described on page 20-40.

7. Installation is the reverse of the removal procedure.
NOTE:
Make sure you assemble the washers and col-
lars on the upper and lower anchor bolts as

shown.
Before attaching the rear pillar trim panel, make

sure there are no twists or kinks in the belts.
On reassembly, replace the anchor bolts (*) and

use liquid thread lock.

TOOTHED

LOCK WASHER
* LOWER ANCHOR BOLT
7/16-20 UNF

32 N·m (3.2 kg-m, 23 Ib-ft)
SPRING WASHER
CAP

REAR PILLAR TRIM PANEL
Replacement, page 20-37
BEARING

PLAIN
WASHER
* UPPER ANCHOR BOLT

7/16-20 UNF

32 N·m
(3.2 kg-m,
23 Ib-ft) TOOTHED
LOCK WASHERProCarManuals.com

Seat Belts

Inspection

Retractor Inspection
1. With the retractor installed, check that the belt can be pulled out freely.
2. Make sure that the belt does not lock when the retractor is tilted over slowly to 15° from the

mounted position. The belt should lock when the
retractor is tilted over 40°
CAUTION: Do not attempt to disassemble the

retractor.
*: Mounted Position
3. Replace the belt with a new one if there is any abnormality.

On the Car Belt Inspection
1. Check that the belt is not twisted or caught on
anything.

2. After installing an anchor, check for free movement on its retaining bolt. If necessary, remove the boltand check that the washers and other parts are not
damaged or installed improperly.
3. Check the belts for fouling, damage or discolora- tion. Clean with a shop towel if fouled.
CAUTION: Use only soap and water to clean. Dirt build-up in the metal loops of the seat belt an-
chors can cause the belts to retract slowly. Wipe
the inside of the loops with a clean cloth dampened in isopropyl alcohol.
4. Check that the belt does not lock when pulled out slowly. The belt is designed to lock only during a
sudden stop or impact.
5. Make sure that the belt will retract automatically when released.
6. Replace the belt with a new one if there is any abnormality.
NOTE:
Do not remove the toothed washer from the
child seat anchor plate. Use the child seat an-
chor plate with the toothed washer attached to
it.
When installing a child seat, follow the instruc-
tions of the manufacturer of the child seat. Additional anchor plates are available.

Do not use the anchor plate for any

other purpose; it is designed exclusively for in-

stallation of a child seat.
246 mm

(62.5
in)

100 mm

(25.4
in)

CHILD SEAT

ANCHOR PLATE
TOOTHED WASHER
25 mm

(1 in)

8 x
1.25
mm

22 N·m (2.2 kg-m, 16 Ib-ft) An attachment point is provided for a child restraint
system which uses a top tether. The tether bracket and
bolt are available at your Acura dealer. The tether at-
tachment point is located on the panel behind the passenger's seat-back.
1. Adjust the passenger seat fully forward to make room behind the seat back.
2. Using the dimensions shown, measure and mark the location of the attachment point on the interior
panel.
3. Use a razor blade or sharp knife to carefully cut a 1 inch diameter circle at the point you marked. Cut
through one layer at a time. You will need to
remove two layers to reach the tether attachment.
4. Install the tether bracket and bolt and tighten to: 16
Ib-ft (22 N·m)

Make sure to route the tether through the space bet-
ween the headrest and seat. Child Seat Anchor PlateProCarManuals.com

SRS wire harnesses are routed near the carpet.

CAUTION:
All SRS electrical wiring harnesses are covered with yellow outer insulation.
Before disconnecting the SRS wire harness, install the short connector on the airbag (see page 23-323).
Replace the entire effected SRS harness assembly if it has an open circuit or damaged wiring.
1. To remove the carpet, first remove the: Seats (page 20-39)
Footrest
Under-dash fuse box lid (page 20-38)

Side sill trim (page 20-38)

• Side silt pad (page 20-38)
• Rear side panel (page 20-38)
• Center armrest (page 20-38)
• Center console panel (page 20-43)

CARPETHOOK

(3)

CONSOLE CARPET

FOOTREST MOUNTING

BOLTS

5. Installation is the reverse of the removal procedure. NOTE:
Take care not to damage, wrinkle or twist the carpet.

Make sure the console carpet air vents are inserted into the heater unit and air duct.

Make sure the seat harnesses are routed correctly.

Carpet

Replacement

SRS UNIT

SRS MAIN

HARNESS FLOOR CARPETS

SRS UNIT

CONSOLE
CARPETS
CONSOLE
CARPET

FLOOR

CARPET INSIDE SCREW
CLIPS

AIR DUCT

CONSOLE

CARPET

FOOTREST

2. Pull up the retainers and carpet clips at the front edge (passenger's side), then remove the floor carpet.
3. Remove the console carpet attaching screw from the heater unit (passenger's side).
4. Remove the carpet hooks from the dashboard inside screws, then remove the console carpet.

L. DASH

SENSOR
R. DASH

SENSORProCarManuals.com

Dashboard/Center Armrest

Component Removal/Installation

SRS wire harnesses are routed near the dashboard.
CAUTION:
All SRS electrical wiring harnesses are covered with yellow outer insulation.Before disconnecting the SRS wire harness, install the short connector on the airbag (see page 23-323). Replace the entire effected SRS harness assembly if it has an open circuit or damaged wiring.
NOTE: Take care not to scratch or score the dashboard.Do not drop the screws inside the dashboard.
When prying with a flat tip screwdriver, wrap it with protective tape or shop

towel to prevent damage.

Disassemble in numbered
sequence.
CLOCK

CLOCK

CENTER AIR VENT
CENTER ARMREST
INNER PANEL
ASHTRAY

SRS UNIT

CENTER ARMREST CENTER CONSOLE

PANEL
Lift up the parking
brake lever.

HEATER CONTROL UNIT

SRS UNIT

STEREO
CASSETE/RADIO

Disconnect the

connectors.

GLOVE BOX LID
(cont'd)

DASHBOARD LOWER
PANEL (Passenger's side)
GLOVE BOX
Disconnect the connectors
TRUNK LID OPENER

MAIN SWITCH
PROTECTIVE

TAPE

CENTER AIR VENT
PROTECTIVE
TAPEProCarManuals.com

Dashboard

Component Removal/Installation (cont'd)
SRS wire harnesses are routed near the steering column. CAUTION: All SRS electrical wiring harnesses are covered with yellow outer insulation.
Before disconnecting the SRS wire harness, install the short connector on the airbag (see page 23-323).
Replace the entire effected SRS harness assembly if it has an open circuit or damaged wiring.
Driver's Side:
NOTE: Take care not to scratch or score the dashboard and steering column.

When prying with a flat tip screwdriver, wrap it with protective tape or shop towel to prevent damage.

Disassemble in numbered sequence.

L. DASH

SENSOR
R. DASH

SENSOR
CABLE REEL and
MAIN HARNESS
SRS
UNIT
RETRACTOR SWITCH/DASH
BRIGHTNESS CONTROLLER

INSTRUMENT

PANEL

TCS SWITCH

DASHBOARD
STAY

KNEE

BOLSTER
DASHBOARD LOWER
PANEL (Driver's side) KNEE BOLSTER

PAD

INSTRUMENT

PANEL
CLIP

KNEE BOLSTER

PAD

Installation is the reverse of the removal procedure.ProCarManuals.com

Replacement

SRS wire harnesses are routed near the dashboard and
steering column,

CAUTION:
AH SRS electrical wiring harnesses are covered
with yellow outer insulation.
Before disconnecting the SRS wire harness, in-
stall the short connector on the airbag (see page

23-232).
Replace the entire effected SRS harness

assembly If it has an open circuit or damaged
wiring.

R. DASH

SENSOR

L. DASH

SENSOR

SRS MAIN

HARNESS

SRS
UNIT
1. To remove the dashboard, first remove the: Seats (page 20-39)
Dashboard tower panel (driver's side)
Knee bolster and pad (page 20-44)

Dashboard stay (page 20-44)

Center armrest (page 20-43)

Clock, center air vent and console panel (page

20-43)

Heater control unit and stereo cassette/radio
(page 20-43)
Dashboard lower panel (passenger's side)
Glove box lid and glove box (page 20-43)
To avoid accidental deployment and
possible injury always install the protective short
connector on the inflator connector when the
harness is disconnected.

SHORT

CONNECTOR
(cont'd)

DASHBOARD
SIDE AIR VENT

5. Remove the attaching screws, then remove the
side air vents from each side of the dashboard.
INSTRUMENT

PANEL

GAUGE ASSEMBLY

3. Remove the instrument panel.
4. Remove the gauge assembly.
8 x
1.25
mm

23 N·m
(2.3 kg-m,

17 lb-ft)
8 x 1.25 mm

16 N·m
(1.6 kg-m,

12 Ib-ft)

STEERING COLUMN

2. Lower the steering column (see Section 17).
NOTE: To prevent damage to the steering column,

wrap with a shop towel.ProCarManuals.com

6. Remove the dashboard end plate and fold the console carpet down (page 20-42).
7. Remove the 6 mounting bolts and center screw, then lift and remove the dashboard.

NOTE:

Take care not to scratch the dashboard.
Use protective tape on the bottom of the front pillar trim.

To prevent damage to the change lever (M/T) or selecter lever and indicator panel (A/T), wrap with a shop towel. When prying with a flat tip screwdriver, wrap it with protective tape or shop towel to prevent damage.
If necessary, remove the defrost panel.
MOUNTING BOLTS


DASHBOARD
RETAINER (4)
DASHBOARD

MOUNTING BOLTS

END PLATE
DASHBOARD
MOUNTING BOLTS CONSOLE CARPETDASHBOARD

MOUNTING BOLTS

CORROSION RESISTANT BOLT

8. Installtion is the reverse of the removal procedure.
NOTE:

Make sure the dashboard fits onto the guide pin and defrost panel correctly. Before tightening the dashboard bolts, make sure the dashboard wires are not pinched.

Dashboard

Replacement (cont'd)

DEFROST PANEL
PROTECTIVE
TAPE SCREW
DASHBOARD
SHOP TOWEL GUIDE PIN
DEFROST
PANEL
MOUNTING BOLTS

SRS UNITProCarManuals.com

Compressor

Description

This compressor is a Nippondenso piston type. A revolving inclined disc drives the surrounding 10 reciprocating pistons.

As the inclined disc revolves, it pushes the pistons, protected by a ceramic shoe, thus compressing the refrigerant.

CENTER BOLT

PRESSURE PLATE

SHIMS

SNAP RING B

PULLEY

SNAP RING A

FIELD COIL

MAGNETIC CLUTCH

FIELD COIL
PISTONSProCarManuals.com