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Cylinder Heads
Removal
Engine removal is not required for this procedure.
Make sure jacks and safety stands are
placed properly and hoist brackets ere attached to cor-
rect positions on the engine.
CAUTION:
Use a fender cover (special tool) to avoid damaging
painted surfaces.
Unplug the wiring connectors carefully while holding
the connector portion to avoid damage.
To avoid damaging the cylinder heads, wait until the
engine coolant temperature drops below 100°F
(38°C) before loosening the retaining bolts.
Do not open the engine cover when the roof panel is
stored (NSX-T open top).
NOTE:
Unspecified items are common.
Mark all wiring and hoses to avoid misconnection.
Also, be sure that they do not contact other wiring or
hoses or interfere with other parts.
Inspect the timing belt before removing the cylinder
head.
Turn the crankshaft pulley SO that the No. 1 piston is
at top dead center (see page
1.
Disconnect the negative terminal from the battery.
2.
Remove the expansion tank cap.
Use care when removing the expan-
sion tank cap to avoid scalding by engine coolant
or steam.
3.
Raise the car, then remove the right rear wheel/tire.
4.
Drain the engine coolant (see page
Table of Contents
6-19 ('91-'93)
or ('94-'96)).
10-5
).
5.
Remove the engine under guard, then remove the
front exhaust pipe A.
GASKETS
Replace.
SELF-LOCKING NUT
10 x 1.25 mm
55 N·m (5.5 kg-m, 40 Ib-ft)
Replace.
6.
Remove the rear exhaust pipe A.
SELF- LOCKING NUT
8 x 1.25 mm
22 N·m (2.2 kg-m, 16 Ib-ft)
Replace.
REAR
EXHAUST
PIPE A
SELF-LOCKING NUT
10 x 1.25 mm
55 N·m (5.5 kg-m.
40 Ib-ft)
Replace.
7.
Remove the engine oil cooler base assembly (see
page
6-15 ('91-'93)
or ('94-'96).
8.
Lower the car.
9. Remove the strut brace (see page
FRONT EXHAUST
PIPE A
SELF- LOCKING NUT
8 x 1.25 mm
22 N·m (2.2 kg-m. 16 Ib-ft)
Replace.
GASKETS
Replace.
5-3
).
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