1997 ACURA NSX check oil

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

13. Install the injectors and fuel pipe assembly in the manifold.

14. Align the center line on the connector with the mark on the fuel pipe.

15. Install and tighten the retainer nuts.

16. Coat new O-rings with clean engine oil and put them on the fuel hose.

17. Connect the fuel hose to the fuel pipe.

18. Connect the vacuum hose and fuel return hose to the pressure regulator.

19. Install the connectors on the injectors.

20. Install the intake manifold covers.

21. Turn the ignition switch ON (II), but do not operate the starter. After the fuel pump runs for about 2 seconds, the fuel

pressure in the fuel line rises. Repeat this two or three times, then check for leakage.ProCarManuals.com

3-2
Standards and Service Limits
MEASUREMENTSTANDARD (NEW)SERVICE LIMIT
CompressionCheck the engine with the Minimumstarter cranking Maximum variation
kPa (kgf/cm
2, psi)
980 (10.0, 142)
200 (2.0, 28)
Cylinder headWarpage
Height—150.95 – 151.05 (5.943 – 5.947)0.05 (0.002)—
CamshaftEnd play
Camshaft-to-holder oil clearance
Total runout
Cam lobe height M/T IN Primary Mid
Secondary
EX Primary Mid
Secondary
A/T IN Primary Mid
Secondary
EX Primary Mid
Secondary0.05 – 0.15 (0.002 – 0.006)
0.050 – 0.089 (0.002 – 0.004)
0.03 (0.0012) max.
37.086 (1.4601)
38.037 (1.4975)
37.326 (1.4695)
36.559 (1.4393)
37.398 (1.4724)
36.741 (1.4465)
37.266 (1.4672)
37.655 (1.4825)
37.504 (1.4765)
36.559 (1.4393)
37.398 (1.4724)
36.741 (1.4465)0.5 (0.02)
0.15 (0.006)
0.04 (0.0016)
—
—
—
—
—
—
—
—
—
—
—
—
ValveValve clearance IN EX
Valve stem O.D. IN EX
Stem-to-guide clearance IN EX0.15 – 0.19 (0.006 – 0.007)*3
0.17 – 0.21 (0.007 – 0.008)*3
5.475 – 5.485 (0.2156 – 0.2159)
5.45 – 5.46 (0.2146 – 0.2150)
0.025 – 0.055 (0.001 – 0.002)
0.05 – 0.08 (0.002 – 0.003)—
—
5.445 (0.2144)
5.42 (0.2134)
0.08 (0.003)
0.11 (0.004)
Valve seatWidth INEX
Stem installed height IN EX0.80 – 1.00 (0.031 – 0.039)
1.25 – 1.55 (0.049 – 0.061)
41.55 – 42.35 (1.6358 – 1.6673)
41.55 – 42.35 (1.6358 – 1.6673)1.5 (0.059)
2.0 (0.079)
42.435 (1.6707)
42.435 (1.6707)
Valve springFree length M/T IN Outer
Inner
EX
A/T IN EX43.23 (1.7020)*1
43.24 (1.7024)*2
39.79 (1.5665)*1
39.82 (1.5677)*2
46.00 (1.8110)*1
45.98 (1.8102)*2
44.59 (1.7555)*1
44.60 (1.7559)*2
47.40 (1.8661)*1
47.43 (1.8673)*2—
—
—
—
—
—
—
—
—
—
Valve guideI.D. IN and EX
Installed height IN and EX5.51 – 5.53 (0.2169 – 0.2177)
13.75 – 14.25 (0.541 – 0.561)5.53 (0.218)—
Rocker armArm-to-shaft Primary and Secondary IN and EXclearance Mid IN and EX0.025 – 0.052 (0.0010 – 0.0020)
0.024 – 0.053 (0.0009 – 0.0021)0.08 (0.003)
0.08 (0.003)
M/T: Manual Transmission A/T: Automatic Transmission
*1: NIHON HATSUJO made, *2: CHUO HATSUJO made.
*3: Measured between the rocker arm and camshaft.
Cylinder Head/Valve Train — Section 6
*04-NSX (61SW004)SEC03(01-16) 9/22/04 1:48 PM Page 3-2
ProCarManuals.com

4-5
Y
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.
A
B Replace engine oil (see page
8-2)*
2, every 7,500 miles (12,000 km) or 1 year.
Engine oil capacity: without oil filter: 4.3 L (4.5 US qt).
Check tire inflation and condition at least once a month, every 7,500 mi\
les (12,000 km).
Replace engine oil filter (see page 8-5)*1, every 15,000 miles (24,000 km) or 1 year.
Engine oil capacity: with oil filter: 5.0 L (5.3 US qt).
Check front and rear brake wear (see page 19-4)*1, every 15,000 miles (24,000 km) or 1 year.
• Check pads and discs for wear (thickness), damage, and cracks.
• Check calipers for damage, leaks, and tightness of mounting bolts.
Check parking brake adjustment (see page 19-5)*1, every 15,000 miles (24,000 km) or 1 year.
Check the number of clicks (10 to 14) when the parking brake lever is pulled with 196 N (20 kgf,\
44 lbf) of force.
Inspect tie-rod ends, steering gearbox, and gearbox boots (see page 17-57)*1, every 15,000 miles (24,000 km) or 1 year.
• Check rack grease and steering linkage.
• Check boots for damage and leaking grease.
• Check fluid lines for damage and leaks.1
• Check bolts for tightness.
• Check condition of ball joint boots for deterioration and damage.
Inspect driveshaft boots (see page 16-3)*1, every 15,000 miles (24,000 km) or 1 year.
Check boots for cracks and boot bands for tightness.
Inspect brake hoses and lines including ABS (see page 19-27)*1, every 15,000 miles (24,000 km) or 1 year.
Check the master cylinder, proportioning control valve and ABS modulator\
for damage and leakage.
Inspect all fluid levels and condition of fluids, every 15,000 miles (2\
4,000 km) or 1 year.
• Manual transmission fluid (MTF) (see page 13-3)*
1.
• Automatic transmission fluid (ATF-Z1) (see page 14-105)*1.
• Engine coolant (see page 10-2)*1.
• Brake fluid (see page 19-84)*1.
• Windshield washer fluid.
Cooling system hoses and connections (see page 10-2)*1, every 15,000 miles (24,000 km) or 1 year.
• Check all hoses for damage, leaks and deterioration.
• Check for proper fan operation.
Inspect exhaust system (see page 9-6)*, *1, every 15,000 miles (24,000 km) or 1 year.
Check catalytic converter heat shield, exhaust pipe, and muffler for dam\
age, leaks, and tightness ( see page 9-14 ).
Inspect fuel lines and connections (see page 11-130)*, *1, every 15,000 miles (24,000 km) or 1 year.
Check for loose connections, cracks, and deterioration; retighten loose \
connections and replace damaged parts.
Part Maintenance Items
*05-NSX (61SW004)SEC04(01-10) 9/22/04 1:49 PM Page 4-5
Inspect suspension components (see page 18-14)* , every 15,000 miles (24,000 km) or 1 year.
ProCarManuals.com

VTEC

VTEC Solenoid Valve Inspection

1. Disconnect the 2P connector from the VTEC sole-

noid valve.

2. Measure resistance between the BLU/YEL (front/rear)

terminals and body ground.

BLU/YEL

3. If the resistance is within specifications, remove the

VTEC solenoid valve from the cylinder head, and

check the VTEC solenoid valve filter for clogging.

• If there is clogging, replace the engine oil filter

and engine oil.

VTEC SOLENOID VALVE

VTEC SOLENOID VALVE

FILTER/O-RING

Replace.
4. If the filter is not clogged, push the VTEC solenoid

valve with your finger and check its movement.

• If VTEC solenoid valve is normal, check the engine

oil pressure.ProCarManuals.com

Rocker Arms and Lost Motion Assemblies

Inspection

NOTE: When reassembling the primary rocker arm, care-

fully apply air pressure to the oil passage of the rocker

arm.

PRIMARY ROCKER ARM

MID ROCKER ARM

SECONDARY

ROCKER ARM

PISTONS

1. Inspect the rocker arm pistons. Push them manually.

— If they do not move smoothly, replace the rocker

arm assembly.

PRIMARY

MID

SECONDARY

Check piston movement

NOTE:

• Apply oil to the pistons when reassembling.

• Bundle the rocker arms with rubber bands to

keep them together as sets.
2. Remove the lost motion assembly from the cylinder

head and inspect it. Pushing it gently with the finger

will cause it to sink slightly. Increasing the force on

it will cause it to sink deeper.

— If the lost motion assembly does not move

smoothly, replace it.

LOST MOTION ASSEMBLYProCarManuals.com

Camshafts

Inspection (cont'd)

9. Remove the camshaft holders and measure widest

portion of plastigage on each journal.

Camshaft-to-Holder Oil Clearance:

Standard (New): 0.050 - 0.089 mm

(0.002 - 0.004 in)

Service Limit: 0.15 mm (0.006 in)

PLASTIGAGE STRIP

10. If camshaft-to-holder oil clearance is out of toler-

ance:

— And camshaft has already been replaced, you

must replace the cylinder head.

— If camshaft has not been replaced, first check

total runout with the camshaft supported on V-

blocks.

Camshaft Total Runout:

Standard (New): 0.03 mm (0.0012 in) max.

Service Limit: 0.04 mm (0.0016 in)

Rotate camshaft

while measuring

— If the total runout of the camshaft is within toler-

ance, replace the cylinder head.

— If the total runout is out of tolerance, replace the

camshaft and recheck. If the oil clearance is still

out of tolerance, replace the cylinder head.
11. Check cam lobe height wear.

Cam Lobe Height Standard (New):

M/T

Check this area for wear.ProCarManuals.com

Camshafts

Installation (cont'd)

17. Apply liquid gasket to the head cover gasket at the

eight corners of the recesses.

NOTE:

• Use liquid gasket, Part No. 08718 - 0001 or 08718

- 0003.

• Check that the mating surfaces are clean and dry

before applying liquid gasket.

• Do not install the parts if five minutes or more

have elapsed since applying liquid gasket. Instead,

reapply liquid gasket after removing old residue.

• After assembly, wait at least 20 minutes before

filling the engine with oil.

Apply liquid gasket to

the shaded areas.

18. When installing the cylinder head cover, hold the

head cover gasket in the groove by placing your fin-

gers on the camshaft contacting surfaces (top of the

semicircles).

Once the cylinder head cover is on the camshaft

holder, slide the cover slightly back and forth to

seat the head cover gasket.

NOTE:

• Before installing the cylinder head cover, clean

the cylinder head contacting surfaces with a

shop towel.

• Do not touch the parts where liquid gasket was

applied.

• Replace the washer when damaged or deterio-

rated.

CYLINDER

HEAD COVER
WASHER

6 x 1.0 mm

12 N-m (1.2 kgf-m,

8.7 Ibf-ft)
19. Tighten the nuts in two or three steps. In the final step,

tighten all nuts, in sequence, to 12 N-m (1.2 kgf-m,

8.7 Ibf-ft).

NOTE: After assembly, wait at least 20 minutes

before filling the engine with oil.

20. After installation, check that all tubes, hoses and

connectors are installed correctly.

NOTE: After installation, fill the engine with oil up to

the specified level, run the engine for more than three

minutes, then check for oil leakage.ProCarManuals.com