Categories
Cylinder Head & Valve Train

nsxd06003a.pdf

Cylinder Head/Valve Train
Illustrated Index
CAUTION: To avoid damaging the cylinder head, wait
until the engine coolant temperature drops below
100 °F (38 °C) before removing it.
NOTE:
CAP NUT
6 x 1.0 mm
10 N.m (1.0 kg-m,
7 Ib-ft)
CYLINDER
HEAD COVER
WASHER AND
GROMMET
After installation, fill the engine with oil up to the
specified level, run the engine for more than 3
minutes, then check for oil leakage.
When installing the new crankshaft;
tighten the crankshaft pulley bolt to 280 N.m (28
kg-m, 203 Ib-ft), loosen bolt. retighten it to
250 N.m (25 kg-m, 181 Ib-ft).
CYLINDER HEAD
COVER
RUBBER SEALS
Replace when damaged
or deteriorated.
6 x 1.0 mm
12N.m (1.2 kg-m,
9 Ib-ft)
TIMING BELT
REAR MIDDLE
COVER
TIMING BELT
FRONT MIDDLE
COVER
ADJUSTING BOLT
10 x 1.25 mm
43N.m (4.3 kg-m,
31 Ib-ft)
For adjustment only,
do not remove.ALTERNATOR
BELT
Adjustment,
section 23
6 x 1.0 mm
12N.m (12 kg-m.
9 Ib-ft)
CRANKSHAFT PULLEY
Remove any oil.
SPECIAL BOLT
16x 1.5 mm
250N.m (25 kg-m,
181 Ib-ft
Tightening torque for
a new crankshaft.
203
Apply oil to
the bolt threads, but not
to the surface that
contacts the washer.
6 x 1.0 mm
12N.m (1.2 kg-m,
9 Ib-ft)
AIR CONDITIONING (A/C) BELT
Adjustment, section 22
6x 1.0 mm
12N.m (1.2 kg-m, 9 Ib-ft)
(cont’d)
A/C ADJUSTING
PULLEY BRACKET
RUBBER SEAL
Install with concave
surface facing out.
Remove any oil.
TIMING BELT
DRIVE PULLEY
Remove any oil.
Install with concave
surface facing in.
Remove any oil.
TIMING BELT
Inspection, page 6-22
Adjustment, page 6-22
Replacement, page 6-23 to 26
RUBBER SEALS
Replace when damaged
or deteriorated.
CAP NUT
6 x 1.0 mm
10N.m (1.0 kg-m,
7 Ib-ft)
TIMING BELT
LOWER COVER
RUBBER SEAL
KEY
Remove any oil.
TENSIONER
280 250N.m
25 kg-m,
181 Ib-ft)
(28
0
0
0
Use new O-rings and gaskets when reassembling.
Replace rubber seals, if damaged or deteriorated.
Prior to installing the cylinder head cover, apply a thin
layer of liquid gasket to the mating surface of the
cylinder head cover and rubber seals to prevent the
rubber seal from falling off.

Cylinder Head/Valve Train
Use new 0-rings and gaskets when reassembling.
Replace rubber seals, if damaged or deteriorated.
Illustrated Index (cont’d)
6 x 1.0 mm
10N.m (1.0 kg-m.
7 Ib-ft)
8x 1.25 mm
22N.m (2.2 kg-m. 16 Ib-ft)
Apply oil to the bolt threads.
FRONT INTAKE
CAMSHAFT
RUBBER SEALS
FRONT EXHAUST
CAMSHAFT
OIL SEAL
Replace.
DOWEL PIN
CAMSHAFT PULLEY
CRANKSHAFT POSITION (CKP)/
CYLINDER POSITION (CYP) SENSOR
6×1.0 mm
12N·m (1.2 kg-m,
9 Ib-ft)
RUBBER SEALS
Replace when damaged
or deteriorated.
TIMING BELT
COVER PLATE
6×1.0 mm
12N·m (1.2 kg-m.
9 Ib-ft)
10 x 1.25 mm
70N.m (7.0 kg-m.
51 Ib-ft)
DOWEL PIN
CAMSHAFT HOLDER
DOWEL PIN
O RING
Replace.
NOTE:

REAR VARIABLE VALVE TIMING
AND VALVE LIFT ELECTRONIC CONTROL
SYSTEM (VTEC) SOLENOID VALVE
Troubleshooting, page 6-15, 16
EXHAUST GAS
RECIRCULATION (EGR) VALVE
6×1.0mm
12N.m (1.2kg-m,
9 Ib-ft)
FILTER
Replace.
8x 1.25mm
22N.m (2.2 kg-m,
16 Ib-ft)
ENGINE COOLANT
TEMPERATURE (ECT) SENSOR
180 N.m (1.8 kg-m. 13 Ib-ft)
8x 1.25mm
22N.m (2.2 kg-m, 16 Ib-ft)
FRONT VTEC SOLENOID VALVE
‘Troubleshooting, page 6-15, 16
O-RING
Replace.
GASKET
Replace.
ROCKER
SHAFTS WASHERSReplace.
SEALING BOLTS
60N.m (6.0 kg-m,
43 Ib-ft)
OIL PRESSURE
GAUGE SENDING
UNIT (section 23)
8x 1.25mm
22N.m (2.2 kg-m,
16 Ib-ft)
DOWEL PIN
O-RING
Replace.
ECT SWITCH
28 N·m (2.8 kg-m.
20 Ib-ft)
O-RING
Replace.
ROCKER ARM ASSEMBLY
(PRIMARY, MID, SECONDARY)
Inspection, page 6-36ROCKER SHAFT
ORIFICE
Remove with 5 mm
bolt and clean.
O-RING
Replace.
(cont’d)

Cylinder Head/Valve Train
Illustrated Index (cont’d)
To avoid damaging the cylinder head, wait until the engine coolant temperature drops below 100°F (38°C) before
removing it.
In handling a metal gasket, care should be taken not to fold it or damage the contact surface of the gasket.
Prior to reassembling, clean all the parts in solvent, dry them, and apply lubricant to any contact parts.
INTAKE VALVE
SPRING OUTER
CYLINDER HEAD BOLTS
11×1.5mm
78N.m (7.8 kg-m, 56 Ib-ft
Apply engine oil to
the bolt threads.
INTAKE VALVE
SPRING INNER
VALVE SEAL
VALVE GUIDE
LOST MOTION
ASSEMBLY
VALVE KEEPERS
SPRING RETAINER
VALVE SPRING
SEAT
CYLINDER HEAD BOLTS
11 x 1.5m
78N.m (7.8 kg-m, 56 Ib-ft)
Apply engine oil to
the bolt threads.
VALVE SPRING SEAT
EXHAUST VALVE
SPRING
SPRING RETAINER
VALVE KEEPERS
VALVE SEAL
VALVE GUIDE
LOST MOTION
ASSEMBLY
Test, 6-36
CYLINDER HEAD
GASKET (METAL)
Replace.
DOWEL PINS
CYLINDER HEAD ORIFICE
Remove with 6mm
bolt and clean.O-RINGS
Replace.OIL CONTROL JET
Remove with 6mm
bolt and clean.
DOWEL PIN
CYLINDER HEAD
GASKET (METAL)
Replace.
EXHAUST VALVE
INTAKE VALVE
CAUTION:
NOTE: Use new O-rings and gaskets when reassembling.

Attachments