1991 ACURA NSX Service Repair Manual

Engine Cover/Roo f Cove r
Remova l
NOTE:
• Tak e car e no t t o scratc h th e body .
• Ope n th e rea r hatch .
1 . Ope n th e engin e cover , an d suppor t i t wit h th e sup -
por t rod . Disconnec t th e roo f holde r switc h connec -
tor , remov e th e nut , the n remov e th e groun d wire .
NOTE : I f necessary , remov e th e roo f switc h sub -
harness .
ENGINE COVE R
CONNECTO R
CONNECTO R GROUN DWIRE
ROO F HOLDE R SWITC HSUB-HARNES S
2. Remov e th e suppor t ro d fro m th e engin e cover .
Remov e th e bolts , tha n remov e th e engin e cover .
ENGIN E COVE R
ENGIN E COVE R
EDGE CUSHION S
ENGINE COVE RHINGE
BOLT S6 x 1. 0 m m10 N- m (1. 0 kg-m ,7.2 Ib-ft )
CORROSIO N RESISTAN T BOL T
3. Installatio n i s th e revers e o f th e remova l procedure .
NOTE:
• Mak e sur e th e roo f holde r switc h connecto r i s
connecte d properly .
• I f necessary , tur n th e engin e cove r edg e cush -
ion s t o mak e th e engine cover fi t flus h wit h th e
body .
SUPPOR TROD
ENGINE COVER
EDGE CUSHIONS
GROMME T
ROOF HOLDE RSWITCH
HARNES SCLIPNUT
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Engine Cover/Roo f Cove r
Replacemen t
NOTE:
• Tak e car e no t t o scratc h th e body .
• Ope n th e rea r hatch .
Roof cove r (Engin e cover ) removal :
1. Ope n th e roo f cover , remov e th e nuts , the n remov e
th e roo f cover .
Nut locations , 4
6 x 1. 0 m m10 N- m (1. 0 kg-m ,7.2 Ib-ft )STRIKE R
ROOF COVE RLATCH
NOTE : Afte r installin g th e roo f cover , adjus t th e
roo f cove r latc h b y usin g shim s t o mak e th e roo f
cove r loc k securel y (se e pag e 20-113 ).
2 . I f removin g th e engin e cover , remov e th e groun d
wire , disconnec t th e roo f holde r switc h connector ,
the n detac h th e harnes s cli p fro m th e lef t sid e (se e
pag e 20-111 ). Remov e th e nuts , the n remov e th e
engin e cover .
Nut locations , 4
ENGIN E COVE R
ENGINECOVERHINGE
NUTS6 x 1. 0 m m 10 N- m(1.0 kg-m , 7. 2 Ib-ft )
3. Installatio n is th e revers e o f th e remova l procedure .
NOTE : Mak e sur e th e roo f cove r open s properl y an d
lock s securely .
ROOF COVE R
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Opener/Latch/Opener cable/Hook stop/Roof stop

bracket removal:

1. Open the engine cover. Remove the screws, then

remove the support rod bracket. Remove the push

nuts, then remove the engine cover insulator.

ENGINE

COVER

SUPPORT ROD

BRACKET
ENGINE COVER

INSULATOR
2. Remove the roof cover latch, roof cover opener and

roof cover opener cable from the engine cover.

NOTE: Take care not to bend the roof cover opener

cable.

6 x 1.0 mm

10 N-m
(1.0 kg-m,

7.2 Ib-ft)

ROOF COVER

OPENER
ENGINE COVER

SHIMS

Thickness: 1.0 mm

(0.039 in)

ROOF COVER

LATCH

ROOF COVER

OPENER CABLE

ROOF COVER

OPENER
R
OOF COVER

OPENER CABLE

KNOB
ROOF COVER

LATCH
ROOF COVER

OPENER CABLEProCarManuals.com

Engine Cover/Roo f Cove r
Replacemen t
3. Remov e th e roo f sto p bracket s an d hoo k stop s fro m
th e engin e cover .
LEFT ROO F STO P BRACKET /
ROO F HOLDE R SWITC H RIGH
T
ROO F STO PBRACKE T
ENGINECOVERHOOK STOP S
CONNECTO R
LEF T ROO F
STO P BRACKE T
This scre w o n th e righ troof sto p bracke t i sscre w A .
Nu t locations , 4
6 x 1. 0 m m10 N- m (1. 0 kg-m ,7.2 Ib-ft ) HOO
K STO P
4. Installatio n is th e revers e o f th e remova l procedure .
NOTE:
• Mak e sur e th e roo f cove r open s properl y an d
lock s securely .
• Mak e sur e th e roo f fit s o n th e engin e cove r
securely .
HOOK
STO P
ROO
F HOLDE R
SWITCHENGINECOVERROOF
ROO F SIDE .
HOO K
ROOF
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Special Tools
Ref.
No.
Tool Number

07JGG — 001010A

07SAZ — 001000A
Page Reference

22-88
22-49 ('94-'96) ('91-'93)
22-50 ('94-'96) ('91-'93)

Description

Belt Tension Gauge
Backprobe Set
Qty

1

2ProCarManuals.com

('93-'96), 86 ('91-'92 Models)
MODE CONTROL MOTOR
Replacement, page 22-57
('93-'96), 69 ('91-'92 Models)
Test, page 22-58
('93-'96), 91 ('91-'92 Models)
"DEF" DOOR
Adjustment, page 22-77
('92-'96), 72 ('91Models)

"HEAT" DOOR

Adjustment, page 22-77
('92-'96), 72 ('91Models)

RECIRCULATION

CONTROL MOTOR

Replacement, page 22-59 ('93-'96), 64 ('91-'92)
Test, page 22-59 ('93-'96), 64 ('91-'92 Models)

BLOWER UNIT

Replacement, page 22-67 ('93-'96), 63 ('91-'92)Overhaul, page 22-68 ('93-'96), 62 ('91-'92)


RECEIVER/DRYER

Serves as a reservoir which filters and
removes moisture from the refrigerant.
OUTSIDE AIR TEMPERATURE SENSOR

Removal, page 22-62 ('93-'96), 86 ('91-'92 Models)

Test, page 22-62


DUAL CONDENSER

Dissipates the heat which was

absorbed by the refrigerant.

Replacement, page 22-79 ('93-'96), 74 ('91Models)Overhaul, page 22-80 ('93-'96), 75 ('91Models)

HEATER CORE

TEMPERATURE SENSOR
Removal, page 22-64

Test, page 22-64
AIR MIX CONTROL

MOTOR

Replacement, page 22-56 ('93-'96), 70 ('91-'92 Models)
Test, page 22-57 ('93-'96), 69 ('91-'92 Models)

HEATER-EVAPORATORUNIT
Replacement, page 22-74('93-'96), 66 ('91-'92 Models)
Overhaul, page 22-76 ('93-'96), ('92), 71 ('91 Models) IN-CAR TEMPERATURE SENSOR
Removal, page 22-61('93-'96), 69 ('91-'92 Models)
Test, page 22-61 ('93-'96), 69 ('91-'92 Models)
COMPRESSOR (NIPPONDENSO)
Compresses the refrigerant and

then forces it through the condenser.

CLIMATE CONTROL UNIT
Replacement, page 22-54
Adjustment, page 22-55
SUNLIGHT SENSOR

Removal, page 22-63 ('93-'96), 87 ('91-'92 Models)Test, page 22-63 ('93-'96), 87 ('91-'92 Models)

EVAPORATOR

TEMPERATURE

SENSOR

Removal, page 22-65 ('93-'96), 88 ('91-'92 Models)
Test, page 22-65 ('93-'96), 88 ('91-'92 Models)

HEATER VALVE CABLE

Adjustment, page 22-58 ('93-'96),
91 ('91-'92), 75 ('93-'96), 66 ('91-'92)

VENT DOOR CONTROL MOTOR
Replacement, page 22-60

('93-'96)
, 69 ('91-'92 Models)
Test, page 22-60 ('93-'96),
69 ('91-'92 Models)

A/C TRIPLE
PRESSURE SWITCHProCarManuals.com

Heater-Evaporator Doo r Positio n
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