Acura NSX 1991 Manual page 97

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Cylinder Heads
Illustrated Index (cont'd)
CAUTION: To avoid damage, wait until the engine coolant temperature drops below 100°F (39-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.
REAR VARIABLE VALVE TIMING
AND VALVE LIFT ELECTRONIC CONTROL
SYSTEM (VTEC) SOLENOID VALVE
Troubleshooting, page
6-3 ('91-'93)
FILTER
Replace.
O-RING
Replace.
Table of Contents
EXHAUST GAS
RECIRCULATI0N (EGR) VALVE
or
('94-'96)
6 x 1 .0 mm
12 N·m (1.2 kg-m.
9 Ib-ft)
GASKET
Replace.
O-RING
Replace.
8 x 1.25 mm
22 N·m (2.2 kg-m,
16 Ib-ft)
ENGINE COOLANT
TEMPERATURE (ECT) SENSOR
18 N·m (1.8 kg-m, 13 Ib-ft)
ROCKER
WASHERS
SHAFTS
Replace.
ROCKER ARM ASSEMBLY
[PRIMARY. MID, SECONDARY]
ROCKER SHAFT
Inspection, page
OIL CONTROL
ORIFICE
Remove with 5 mm
boit and clean.
8
1.25 mm
x
22 N·m (2.2 kg-m. 16 lb-ft)
FRONT VTEC SOLENOID VALVE
Troubleshooting. page
6-3
SEALING BOLTS
60 N·m (6.0 kg-m,
)
43 lb-ft
OIL PRESSURE
GAUSE SENDING
UNIT
(section
23)
8
1.25 mm
x
22 N·m (2.2 kg-m,
16 Ib-ft)
DOWEL PIN
0-RING
Replace.
ECT SWITCH
28 N·m 12.8 kg-m.
20 lb-ft
O-RING
Replace.
6-32 ('91-'93)
or
('94-'96)

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