Yanmar 3TNV88F, Руководство по обслуживанию

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ENGINE
6-28
3TNV88F Service Manual
Cylinder Head
■
Reassembly of rocker arm reassembly
Note: Ensure the lubrication holes
(Figure 6-34, (1)) in the rocker arm shaft are
oriented correctly with respect to the rocker
arms (Figure 6-34, (2)).
Figure 6-34
1. Lubricate the rocker arm shaft. Slide the rocker
arm supports (Figure 6-35, (5)) , springs
(Figure 6-35, (1)) and rocker arms
(Figure 6-35, (2)) onto the shaft.
Note:
• The rocker arm shaft fits tightly in the rocker
arm supports. Clamp the support in a padded
vise. Twist and push on the rocker arm shaft to
reinstall.
• To properly align the rocker arm shaft with the
rocker arm shaft supports, first reinstall a
rocker arm support (Figure 6-35, (5)) having a
hole for the shaft alignment stud
(Figure 6-35, (4)). Align the hole in the rocker
arm shaft and the hole in the rocker arm
support. Reinstall the alignment stud.
Figure 6-35
Note: Figure 6-35 shows components for one
cylinder. Components for all remaining
cylinders are assembled in the same
order.
2. Place the rocker arm shaft assembly onto the
cylinder head.
3. If removed, reinstall the valve adjusting screws
(Figure 6-35, (6)) and the lock the nuts
(Figure 6-35, (7)) .
4. Align the push rods with their respective rocker
arms.
5. Reinstall and tighten the rocker arm shaft
retaining bolts to the specified torque.
6. Tighten the rocker arm shaft alignment studs.
7. Adjust the valve clearance. See Measuring and
Adjusting Valve Clearance on page 6-30.
2
1
1
K0001914
K0001951
1
5
4
3
2
6
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