•
Rocker arm shaft diameter
With an outside micrometer, measure
the rocker arm shaft diameter at the
point where the rocker arms have been
installed.
Replace the rocker arm if the amount of
wear is beyond the specified limit.
2) Rocker arm
•
Visual check
Visually check the face of the rocker arm
in contact with the valve stem end for
scores and step wear. If the wear is
small, correct it with an oil stone or grind-
ing paper of fine grain size. Rocker arm
with a considerable amount of step wear
should be replaced.
•
Diameter of the rocker arm bushing
Measure the inside diameter of the rock-
er arm bushing with an inside microme-
ter or vernier calipers, and compare the
measured values with the rocker arm
shaft diameter. If the clearance exceeds
the limit, replace either bushing or shaft,
whichever worn more.
<Clearance>
3) Tappet and push rod
•
Clearance
Measure the clearance of the tappet and
tappet holes of the cylinder block. If the
value is beyond the specified limit,
replace tappets.
- 46 -
EA8M3002
EA0M4059
Standard
Limit
23.978 ~ 23.959 mm
23.75 mm
Standard
Limit
0.020 ~ 0.093 mm
0.2 mm
Standard
Limit
0.035 ~ 0.077 mm
0.15 mm