Honda Acura NSX 1991 Service Manual page 127

2. Remove the 10 mm sealing bolt and washer from
the inspection hole and connect the special tool.
VTEC PLUG
REGULATOR VALVE
Pull
the lever and
l
turn to adjust.
ADAPTER
mm
1 0 x 1 . 0
3. Apply specified air pressure to the rocker arm,pistons
after loosening the regulator valve on the VTEC in-
spection attachment
Specified Air Pressure:
245 kPa (2.5 kg/cm', 36 psi)
- 4 9 0 kPa ( 5 . 0
4.
PRIMARY
ROCKER ARM
LOST MOTION '
ASSEMBLY
WASHER
Replace.
1 0 x 1 . 0
BOLT
20 N'm (2.0 kg-m,
14 lb-ft)
5. Remove the special tools.
6.
Make sure that the primary and secondary rocker
arms are mechanically connected by pistons and that
the mid rocker arms do not move when pushed
manually.
primary and secondary rocker arms, replace the
rocker arms as a set.
Check for smooth operation of the lost motion as-
sembly. It is compressed slightly when the mid rock-
er arm is lightly pushed and compressed deeply when
the mid rocker arm is strongly pushed.
move smoothly.
After inspection, check that the ECU does not show
an error code.
SECONDARY
ROCKER ARM
AMPLE
MID ROCKER
ARM