10. Cylinder Block/Head
144
Rocker Arms
Disassembling the Rocker Arms
EDX22190047
1. Remove plug screw (A) from both sides of the rocker arm
with a spanner.
2. Use a press to remove the rocker arm bushing.
Checking and Measuring the Assemblies
1. Rocker arm bracket (integrated with shaft)
EDX22190048
1) Measure the outside diameter of the rocker arm with a
micrometer at the point where the rocker arm is assem-
bled; if the measurement exceeds the allowable limit,
replace it.
• Rocker arm specifications
1. Rocker arms
EDX22190049
1) Check the surface where the rocker arm is in contact with
the valve for scratches or worn pins; if the damage is
minor, polish it with an oily grindstone or fine sandpaper.
Note) If the damage is severe, replace the part.
Assembling the Rocker Arms
1. After checking the rocker arm and rocker arm bracket for
clogged oil passages, clean the rocker arm thoroughly;
then, reassemble the rocker arm in the reverse order of
assembly.
Item Specified value Allowable limit
Bushing
I.D.
Ø27.991 ~ Ø28.012 mm
(Ø1.1020 ~ Ø1.1028 in.)
28.137 mm
(1.1078 in.)
Shaft O.D.
Ø27.953 ~ Ø27.976 mm
(Ø1.1005 ~ Ø1.1014 in.)
27.916 mm
(1.099 in.)
Clearance
0.015 ~ 0.059 mm
(0.0006 ~ 0.0023 in.)
0.12 mm
(0.00472 in.)
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