Acura NSX 1997 Service Manual page 58

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VTEC
Rocker Arms — Inspection Using Special Tools (cont'd)
2. Remove the 10 mm sealing bolt and washer from
the inspection hole and connect the tools.
VTEC PLUG
07MAJ-PR7020A
REGULATOR VALVE
(Commercially
available)
• Pull the lever and
turn to adjust.
ADAPTER
l0
(Commercially
available)
3. Apply the specified air pressure to the rocker arm
pistons after loosening the regulator valve on the
VTEC inspection attachment.
Table of Contents
INSPECTION HOLE
WASHER
x 1.0 mm
Replace.
4. 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
ROCKER ARM
LOST MOTION
ASSEMBLY
• If a mid rocker arm moves independently of the
primary and secondary rocker arms, replace the
rocker arms as a set.
5. Remove the tools.
6. Check the operation of the lost motion assembly by
pushing on the mid rocker arm. The lost motion
assembly should
smoothly through its full stroke. Replace the
assembly if it does not work smoothly.
After inspection, check that the Malfunction Indicator
Lamp does not show an error code.
SECONDARY
ROCKER ARM
MID ROCKER
ARM
compress fully and operate