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ENG
ROCKER ARMS
REMOVING THE ROCKER ARMS
1. Remove:
• rocker arm shafts
1
• rocker arms
2
NOTE:
Use a slide hammer bolt
3
and weight
4
to
remove the rocker arm shafts.
Slide hammer set
P/N. YU-01083-A
Slide hammer bolt (M6)
P/N. 90890-01083
Weight
P/N. 90890-01084
CHECKING THE ROCKER ARMS
1. Check:
• rocker arm lobes
1
• valve adjusters
2
Blue discoloration/pitting/scratches
→
Replace.
2. Check:
• rocker arms
• rocker arm shafts
Damage/wear
→
Replace.
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a. Check the two contact areas on the rocker
arms for signs of abnormal wear.
1) Rocker arm shaft hole
2) Camshaft lobe contact surface
Excessive wear
→
Replace.
b. Check the surface of the rocker arm shafts.
Blue discoloration/pitting/scratches
→
Replace/check lubrication.
c. Measure the inside diameter
a
of the
rocker arm holes.
Out of specification
→
Replace.
Rocker arm inside diameter
12.000 ~ 12.018 mm
(0.4724 ~ 0.4731 in)
Содержание 2004 Rhino 660 YXR660FAS
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