oil temperature ACURA NSX 1997 Service Repair Manual

The numbers in the middle of the API Service label tell

you the oil's SAE viscosity or weight. Select the oil for

your vehicle according to this chart:

Ambient Temperature

An oil with a viscosity of 10W - 30 is preferred for

improved fuel economy and year-round protection in the

vehicle.

You may use a 5W - 30 oil if the climate in your area is

limited to the temperature range shown on the chart.

API CERTIFICATION SEAL

API SERVICE LABEL

4. Run the engine for more than three minutes, then

check for oil leakage and oil level.ProCarManuals.com

3-14
Design Specification
ITEMMETRICENGLISH
AIR CONDITIONINGCooling capacity
Conditions:
Compressor RPM
Outside air temperature
Outside air humidity
Condenser air temperature
Condenser air velocity
Blower capacity4,000 Kcal/h 15,872 BTU/h
1,800 rpm
27 °C 81 °F
50 %
35 °C 95 °F
4.5 m/sec 14.8 ft/sec
420 m
3/h 15,540 cu-ft/h
Independent double wishbone with compli-
ance pivot, coil spring with stabilizer
Independent double wishbone,
coil spring with stabilizer
Telescopic, hydraulic nitrogen gas-filledSUSPENSIONType, front
Type, rear
Shock absorber, front and rear
Evaporator Type
Air temperatureCorrugated fin type
19.5 °C 67 °F
Compressor Type/Make
No. of cylinders
Capacity
Max. speed
Lubricant capacity
NOTES
Swash-plate type/DENSO
10
155.3 cc/rev 9.47 cu-in/rev
7,600 rpm
160 mL 5 1/3 fl oz,
5.6 lmp oz
At 12 V
Air-mix type
Sirocco fan
178 W/12 V
Infinity variable
460 m
3/h 16,247 cu-ft/h
DENSO ND-OIL8
Condenser TypeCorrugated fin type
Temp. control
Blower Type
Motor input
Speed control
Max. capacity
At 13.5 V
Refrigerant Type
Quantity
Dry, single plate, poly-V-belt drive
40 W/12 VCompressor clutch Type
Power consumption
Electric, power assisted, rack and pinion
18.6
3.24
368 mm 14.5 inSTEERING
SYSTEMType
Overall ratio
Turns, lock-to-lock
Steering wheel dia.
HFC-134a (R-134a)
850+0g 30.0+0oz–50–1.8
(cont’d)
*04-NSX (61SW004)SEC03(01-16) 9/22/04 1:49 PM Page 3-14
ProCarManuals.com

4-2
For the details of lubrication points and types of lubricants to be appl\
ied, refer to the illustrated index and various work
procedures (such as Assembly/Reassembly, Replacement, Overhaul, Install\
ation, etc.) contained in each section.
*1: Always use Honda Manual Transmission Fluid (MTF). Using motor oil can \
cause stiffer shifting because it does not contain theproper additives.
*2: Always use Honda ATF-Z1 (ATF). Using a non-Honda ATF can affect shift \
quality.
*3: Always use Honda Heavy Duty DOT3 Brake Fluid. Using a non-Honda brake fl\
uid can cause corrosion and decrease the life of the system.
Lubrication Points
No.LUBRICATION POINTSLUBRICANT
1Honda Motor Oil: P/N 08798-9015.
Look for the API Certification seal shown below. Make sure
it says “For Gasoline Engines.”
2TransmissionHonda MTF*1(P/N 08798-9016)
3Brake system (including anti-lock brake system)Honda Heavy Duty DOT3 Brake Fluid*3(P/N 08798-9008)4Clutch line
5Change lever pivots (M/T)Super High Temp Urea Grease (P/N 08798-9002)6Release fork (M/T)
8
9
10
11
12
13
14
15
16
17
18
19
20
21Steering boots
Steering ball joints
Select lever (A/T)
Pedal linkage
Intermediate shaft
Brake master power pushrod
Fuel fill door
Clutch master cylinder pushrod
Tilt lever
Parking brake cable end
Door hinges upper and lower
Door opening detents
Hood hinges and lock
Rear hatch latch
Multipurpose grease
24
22
23
Caliper piston boot, caliper pins, and boots
Shift cable end and select cable end (A/T)
Throttle cable ends
Honda Caliper Grease (P/N 08C30-B0234M)
Silicone grease
25Air conditioning compressorCompressor oil:
DENSO: ND-OIL8 (P/N 38897-PR7-A01AH or 38899-PR7-A01)
For Refrigerant: HFC-134a (R-134a)
Manual
Honda ATF-Z1 (ATF)*2(P/N 08200-9001)Automatic
7Steering gearboxSteering grease (P/N 08733-B070E)
Engine
API CERTIFICATION SEAL
Recommended engine oil
Engine oil viscosity for
ambient temperature ranges
*05-NSX (61SW004)SEC04(01-10) 9/22/04 1:49 PM Page 4-2
ProCarManuals.com

Removal
NOTE:
• Befor e removin g th e belt , tur n th e crankshaf t pulle y
s o th e No . 1 pisto n i s a t to p dea d cente r (TDC ) (se e
pag e 6-19 ).
• Inspec t th e wate r pum p afte r removin g th e timin g
bel t (se e pag e 10-11 ).
• I f i t i s t o b e reused , mar k th e directio n o f rotatio n o n
th e belt .
• Replac e th e timin g bel t a t 105,00 0 mile s (168,00 0 km )
accordin g t o th e maintenanc e schedul e (norma l con -
ditions/sever e conditions) . I f th e vehicl e i s regularl y
driven i n on e o r mor e o f th e followin g conditions ,
replace th e timin g bel t a t 60,00 0 mile s (U.S.A. )
100,00 0 k m (Canada) .
— In ver y hig h temperature s (ove r 110°F , 43°C) .
— In ver y lo w temperature s (unde r -20°F , -29°C) .
1 . Disconnec t th e batter y negativ e termina l first , the n
th e positiv e terminal .
2 . Remov e th e righ t rea r wheel/tire .
3 . Remov e th e engin e oi l coole r bas e assembly .
NOTE : D o no t disconnec t th e hoses .
O-RINGReplace .
4. Remov e th e stru t brac e (se e pag e 5-3 ).
5 . Remov e th e intak e manifol d plat e an d to p cove r (se e
pag e 6-26 ). 4
. Remov e th e ignitio n coi l covers , th e injecto r cove r
an d th e wir e harnes s covers .
5 . Remov e th e ignitio n coil s an d th e connectors .
NOTE:
• Ther e ar e fron t an d rea r ignitio n coil s an d covers .
The y ca n b e identifie d b y th e mar k F F (front ) o r
RR (rear ) printe d o n them .
• Whe n installin g fron t an d rea r ignitio n coi l covers ,
attac h a rubbe r sea l t o th e intak e side .
HARNES SCOVERS
IGNITION COI LCOVE R
CONNECTO R
IGNITION COI L
6. Remov e th e expansio n tank .
NOTE : D o no t disconnec t wate r hoses .
EXPANSIO N TAN K
(cont'd )
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Cylinder Heads

Illustrated Index

CAUTION: To avoid damage, wait until the engine coolant temperature drops below 100°F (38°C) before removing the cylin-

der head.

NOTE: Use new O-rings and gaskets when reassembling.

Prior to reassembling, clean all the parts in solvent, dry them, and apply lubricant to any contact parts.

CAMSHAFT HOLDER

O-RING

Replace.
CAMSHAFT HOLDER

PLATE

CKP/CYP SENSOR

RUBBER SEALS

Replace when damaged

or deteriorated.

BACK COVER
Apply oil to the bolt threads.

FRONT INTAKE

CAMSHAFT

RUBBER SEALS

Replace for oil

leakage.

FRONT EXHAUST

CAMSHAFT

DOWEL PIN

CAMSHAFT PULLEY

(cont'd)ProCarManuals.com

Crankshaft
Installation (cont'd )
LEFTSIDE COVE R
Apply liqui d gaske talong th e broke n line .
OIL PUM PApply liqui d gaske t
alon g th e broke n line .
• D o no t instal l th e part s i f fiv e minute s o r mor e
hav e elapse d sinc e applyin g liqui d gasket .
Instea d reappl y liqui d gaske t afte r removin g ol d
residue .
• Afte r assembly , wai t a t leas t 2 0 minute s befor e
filling th e engin e wit h oil .
9. Instal l th e oi l pas s pip e an d joint .
10 . Instal l th e baffl e plate .
11 . Instal l th e oi l screen .
12 . Instal l th e oi l pa n (se e pag e 8-10 ).
CAUTION : Wheneve r an y crankshaf t o r connec -
tin g ro d bearin g i s replaced , afte r reassembly , ru n
th e engin e a t idlin g spee d unti l i t reache s norma l
operatin g temperature , the n continu e t o ru n fo r
approximatel y 1 5 minutes .
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Description ——————————————————\
——————————————————\
———
Ignition Timin g Control :
Th e programme d ignitio n use d i n thi s engin e provide s optimu m contro l o f ignitio n timing . A microcompute r determine s
th e timin g i n respons e t o engin e spee d an d manifol d vacuu m pressure . Th e inpu t signal s ar e transmitte d b y th e crank -
shaf t position/cylinde r positio n (CKP/CYP ) sensor , throttl e positio n (TP ) sensor , EC T sensor , an d MA P sensor . Thi s sys -
tem , no t dependen t o n a governo r o r vacuu m diaphragm , i s capabl e o f settin g lea d angle s wit h complicate d characteristic s
whic h canno t b e provide d b y conventiona l governor s o r diaphragms .
Basi c Contro l
Determinatio n of ignitio n timing/curren t duration :
Th e EC M ha s store d withi n i t th e optimu m basi c ignitio n timin g fo r operatin g condition s base d upo n engin e spee d an d in -
tak e manifol d pressure . Wit h compensatio n b y signal s fro m sensors , th e syste m determine s optimu m timin g fo r ambien t
condition s an d send s voltag e pulse s t o th e ICM .
Compensatio n o f Ignitio n Timing :
Compensatio n Ite m
Idlin g
Compensatio n a t warm-u p
Engin e coolan t
temperatur e compensatio nRelate
d Senso r an d Informatio n
CKP/CY P sensor , MA P senso r
Engin e coolan t temperatur e
(ECT) senso r
ECT senso r Descriptio
n
Ignitio n timin g i s controlle d t o th e targe t spee d
wit h compensatio n accordin g t o th e idlin g speed .
La g angl e i s adjuste d accordin g t o warm-u p con -
dition s t o brin g abou t a goo d balanc e betwee n
operatin g performanc e an d exhaus t ga s level .
Compensatio n fo r lea d angl e a t low coolan t
temperatur e an d la g angl e a t hig h coolan t
temperature .
Contro l a t Star t
Ignitio n timin g is fixe d a t 5 ° BTD C fo r cranking . Th e crankin g is detecte d b y th e CY P senso r (crankin g rpm ) an d starte r signal .
Misfirin g Detectio n
A s par t o f th e OB D II misfirin g detectio n system , eac h o f th e ignitio n coil s ha s a built-i n spar k plu g voltag e sensor . Thi s
senso r detect s th e lon g duratio n hig h voltag e whic h occur s i n cas e o f unfavorabl e combustio n o r misfiring . (Fo r details ,
se e sectio n 11 .)
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Ignition Coi l Tes t
1. Wit h th e ignitio n switc h OFF , remov e th e ignitio n
coil.
2. Usin g a n ohmmeter , measur e resistanc e betwee n
th e terminals . Replac e th e coi l i f th e resistanc e i s
no t withi n specifications .
NOTE: Resistanc e wil l var y wit h th e coi l
temperature ; specificatio n i s a t 77° F (25°C) .
Primary Windin g Resistanc e
(Betwee n th e A an d B terminals) : 0.9 - 1. 1 ohm s
3. I f primar y windin g resistanc e i s OK , substitut e aknown-goo d ignitio n coil , an d chec k th e syste m
operation .
If th e syste m is normal , replac e th e origina l ignitio n
coil.
A TERMINA L
B TERMINA LIGNITIONCOIL
SECONDAR Y
WINDINGTERMINA L
SPARK PLU G
VOLTAG E
SENSO R
SECONDAR Y
WINDINGTERMINA L
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Radiator and Condenser Fan Controls

Control Unit Terminals

THROTTLE VALVE CONTROL

MOTOR RELAY

Wire

Terminal Color
Connects to

1

2

3

4

5

6

7

8

9

10

11

12
-

LT GRN

GRY/BLK

BLU/RED

BLK

BRN/BLK

GRN

—

ORN/BLU

BLU/BLK

YEL/BLK

GRN/BLK
Not used

Radiator fan control sensor

Climate control unit

Radiator fan high and engine

compartment fan relays coil

Ground (G401, G402, G403)

A/C triple pressure switch A

Radiator fan control sensor

Not used

Condenser fan relay coil

ECM
(ACS)

IG2 (Power supply)

Radiator fan low relay coil
1. Disconnect the 3P connector from the resistor.

3P CONNECTOR
RADIATOR

FAN

RESISTOR

NOT USED

2. Using an ohmmeter, measure resistance between

the A and B terminals. Replace the resistor if the

resistance is not within specifications.

NOTE: Resistance will vary with the resistor

temperature; specifications are at 68°F (20°C).

Radiator Fan Resistor

Resistance: 0.54—0.66 ohms
Radiator Fan Resistor TestProCarManuals.com