water pump ACURA NSX 1997 Service Repair Manual

3-13
TDesign Specifications
(cont’d)
ITEMMETRICENGLISH
DIMENSIONSOverall length
Overall width
Overall height
Wheelbase
Track F/R
Ground clearance
Seating capacity4,425 mm 174.2 in
1,810 mm 71.3 in
1,170 mm 46.1 in
2,530 mm 99.6 in
1,510/1,540 mm 59.4/60.6 in
130 mm 5.1 in
2
WEIGHT (USA)
Single plate dry, diaphragm spring
Torque converter
239 cm
237.0 sq in
CLUTCHClutch M/T
A/T
Clutch lining area M/T
Gross Vehicle Weight Rating (GVWR)
NOTES
Gear reduction/DENSO
1.4 kW
12 V
30 seconds
Counterclockwise as viewed
from gear end
4.75 kg 10.47 lbs
ENGINEWater cooled, 4-stroke DOHC VTEC
gasoline engine
90 °V6-cylinder, transverse
93.0 x 78.0 mm 3.66 x 3.07 in
90.0 x 78.0 mm 3.54 x 3.07 in
3,179 cm
3(cc) 194 cu in
2,977 cm3(cc) 182 cu in
10.2
Belt driven DOHC
Forced and wet sump
Premium UNLEADED grade gasoline
with 91 Pump Octane Number
or higher
STARTERType/Make
Normal output
Nominal voltage
Hour rating
Direction of rotation
Weight
WEIGHT (CANADA)Gross Vehicle Weight Rating (GVWR)
Synchronized 6 speed forward 1 reverse
Electronically controlled
4-speed forward automatic 1 reverse
Direct 1 : 1Transmission M/T
A/T
Primary reduction
Manual AutomaticType
3.066 2.611
1.956 1.551
1.428 1.025
1.125 0.684
0.914—
0.717—
3.186 1.909Gear ratio 1st
2nd
3rd
4th
5th
6th
Reverse
Single helical gear
4.062 4.428
TRANSMISSION
Final reduction Gear type
Gear ratio
Type
Cylinder arrangement
Bore and strokeC32B1 engine
C30A1 engine
DisplacementC32B1 engine
C30A1 engine
Compression ratio
Valve train
Lubrication system
Fuel required
M/T 1,630 kg 3,593 lbs
A/T 1,655 kg 3,649 lbs
*04-NSX (61SW004)SEC03(01-16) 9/22/04 1:49 PM Page 3-13
ProCarManuals.com

4-6
This Maintenance Schedule outlines the minimum required maintenance. Ser\
vice at the indicated distance or time, whichever
comes first. Use the Maintenance Schedule for Severe Conditions if the v\
ehicle meets any of the qualifiers in the Severe
Conditions schedule or if the vehicle is normally driven in Canada.
Do the items in parts A, B, C, D, E, F, and G as required for the mileag\
e/time interval listed.
NOTE: According to state and federal regulations, failure to do the maintenanc\
e items marked with an asterisk (*) will not
void the customer ’s emissions warranties. However, Acura recommends that all maintenance s\
ervices be done at
the recommended interval to ensure long-term reliability.
*1: Refer to the 1997 NSX Service Manual, P/N 61SL006.
*2: Refer to the 1998 NSX Service Manual Supplement, P/N 61SL007.
*3: Refer to the 2001 NSX Service Manual Supplement, P/N 61SW000.
C
D
E
F
G Inspect and adjust drive belts, every 30,000 miles (48,000 km) or 2 ye\
ars.
•
Check for cracks and damage.
• Check deflection and tension at center of following belts pressing with\
98 N (10 kgf, 22 lbf) tension:
Alternator drive belt (see page 23-109)*
1: 11.0 – 13.5 mm (0.43 – 0.53 in.)
A/C compressor belt (see page 22-88)*1: 10 – 12 mm (0.39 – 0.47 in.)
Replace air cleaner element (see page 11-149)*1, every 30,000 miles (48,000 km).
Independent of time
Replace fuel filter (see page 11-138)*, *1, every 60,000 miles (96,000 km).
Replace spark plugs (see page 23-96)*1, every 105,000 miles (168,000 km).
Use PFR6G-11 (NGK) or PK20PR-L11 (DENSO); GAP 1.0 – 1.1 mm (0.039 – 0.043 in.).
Inspect the valve clearance (see page 6-10)*1, every 105,000 miles (168,000 km), otherwise adjust only if noisy.
Intake: 0.15 – 0.19 mm (0.006 – 0.007 in.), Exhaust: 0.17 – 0.21 mm (0.007 – 0.008 in.).
Replace timing belt (see page 6-14)*1 and inspect water pump (see page 10-11)*1,
every 105,000 miles (168,000 km) or 7 years.
Replace automatic transmission fluid (see page 14-105)*1 at 120,000 miles (192,000 km) or 6 years, then replace
every 90,000 miles (144,000 km) or 5 years.
Capacity: 2.9 L (3.1 US qt); use Honda ATF-Z1.
Replace manual transmission fluid (see page 13-3)*1, every 120,000 miles (192,000 km) or 6 years.
Capacity: 2.65 L (2.80 US qt); use Honda MTF.
Replace engine coolant (see page 10-2 )*3 at 120,000 miles (192,000 km) or 10 years, then every 60,000 miles (9\
6,000
km) or 5 years. Capacity: 12.0 L (3.2 US gal); use Honda All Season Antifreeze/Coolant\
Type 2.
Part Maintenance Items
Maintenance Schedule
Listed by Distance/Time for Normal Conditions
*05-NSX (61SW004)SEC04(01-10) 9/22/04 1:49 PM Page 4-6
ProCarManuals.com

Timing Belt

Installation

Install the timing belt in the reverse order of removal;

Only key points are described here.

NOTE: Clean the middle and lower covers before instal-

lation.

1. Set the timing belt drive pulley so that the No. 1 pis-

ton is at top dead center (TDC). Align the A mark on

the teeth side of the timing belt drive pulley to the

pointer on the oil pump.

POINTER

MARK

KEY

TIMING BELT

DRIVE PULLEY

Clean.

2. Set the front camshaft pulleys so that the No. 1 pis-

ton is at TDC. Align the TDC marks on the front

exhaust camshaft pulley and front intake camshaft

pulley to the pointer on the back cover.

Pointer on the

back cover.

FRONT INTAKE

CAMSHAFT PULLEY
FRONT EXHAUST

CAMSHAFT PULLEY

TDC MARKS
3. Set the rear camshaft pulleys so that the No. 1 pis-

ton is at TDC. Align the TDC mark on the rear intake

camshaft pulley to the pointer on the back cover.

Align the rear exhaust camshaft pulley one half

tooth clockwise past TDC.

REAR EXHAUST

CAMSHAFT PULLEY
Pointer on the

back cover.
REAR INTAKE

CAMSHAFT PULLEY

TDC MARKS

4. Install the timing belt tightly in the sequence shown.

Timing belt drive pulley (crankshaft)

Adjusting pulley Front exhaust camshaft pulley

Front intake camshaft pulley Water pump

pulley Rear intake camshaft pulley Rear

exhaust camshaft pulley.

NOTE: Make sure the timing belt drive pulley and

camshaft pulleys are at TDC.

5. Tension the timing belt between the pulleys in the

sequence A to E as shown below.ProCarManuals.com

Inspection
1. Remov e th e timin g bel t (se e pag e 6-15 ).
2 . Tur n th e wate r pum p pulle y counterclockwise . Chec k
tha t i t turn s freely .
3. Chec k fo r sign s o f sea l leakage .
NOTE: A smal l amoun t o f "weeping " fro m th e blee d
hol e is normal .
Turns counterclockwis e
BLEED HOL E BLEE
D HOL E
Replacemen t
1. Remov e th e timin g bel t (se e pag e 6-15 ).
2 . Unscre w th e bolts , the n remov e th e wate r pump .
NOTE : Inspec t an d clea n th e O-rin g groov e an d
matin g surfac e wit h th e cylinde r block .
DOWE L PI N
SPECIA L BOLT S
6 x 1. 0 mm : 7 BOLT S
12 N- m(1.2 kgf-m , 8. 7 Ibf-ft )
Replace .
O-RINGReplace .
SPECIA L BOLT S
8 x 1.2 5 mm : 2 BOLT S
2 2 N- m (2. 2 kgf-m ,
1 6 Ibf-ft )
Replace .
3. Instal l th e wate r pum p i n th e revers e orde r o f
removal .
NOTE:
• Kee p th e O-rin g i n positio n whe n installing .
• Clea n u p spille d engin e coolant .
WATER PUM P
ProCarManuals.com

Bleeding

CAUTION:

• Always use Genuine Honda DOT 3 Brake Fluid. Using

a non-Honda brake fluid can cause corrosion and

decrease the life of the system.

• Make sure no dirt or other foreign matter is allowed

to contaminate the brake fluid.

• 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.

NOTE: The reservoir on the master cylinder must be full

at the start of bleeding procedure, and checked after

bleeding each brake caliper. Add fluid as required.

Always use Genuine Honda DOT 3 Brake Fluid. Using a

non-Honda brake fluid can cause corrosion and

decrease the life of the system.

BLEEDING SEQUENCE:

1. Have someone slowly pump the brake pedal several

times, then apply steady pressure.

2. Loosen the brake bleed screw to allow air to escape

from the system. Then tighten the bleed screw

securely.

3. Repeat the procedure for each wheel in the

sequence shown above, until air bubbles no longer

appear in the fluid.ProCarManuals.com