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Camshaft lobe dimensions
Intake A
25.881–25.981 mm (1.0189–
1.0229 in)
Limit
25.851 mm (1.0178 in)
Intake B
21.194–21.294 mm (0.8344–
0.8383 in)
Limit
21.165 mm (0.8333 in)
Exhaust A
25.841–25.941 mm (1.0174–
1.0213 in)
Limit
25.811 mm (1.0162 in)
Exhaust B
20.997–21.097 mm (0.8267–
0.8306 in)
Limit
20.967 mm (0.8255 in)
4. Check:
• Camshaft oil passage
Obstruction → Blow out with compressed
air.
EAS23880
CHECKING THE ROCKER ARMS AND
ROCKER ARM SHAFTS
The following procedure applies to all of the
rocker arms and rocker arm shafts.
1. Check:
• Rocker arms
Damage/wear → Replace.
2. Check:
• Rocker arm shafts
Blue discoloration/excessive wear/pitting/
scratches → Replace or check the lubri-
cation system.
3. Check:
• Camshaft lobe
Excessive wear → Replace the camshaft.
4. Measure:
• Rocker arm inside diameter "a"
Out of specification → Replace.
Rocker arm inside diameter
10.000–10.015 mm (0.3937–
0.3943 in)
Limit
10.030 mm (0.3949 in)
5-15
CAMSHAFT
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