Yanmar 3TNV82A-B, Руководство по обслуживанию

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ENGINE
6-40
TNV DI Service Manual
2-Valve Cylinder Head
Note: If the valves are to be reused, identify
them so they can be installed in their
original location.
8. Turn the cylinder head so the exhaust port side
faces down. Remove the intake and exhaust
valves (Figure 6-13, (6)) from the cylinder
head.
9. Remove the valve stem seals
(Figure 6-13, (5)).
Removal of Valve Guides
Note: Removal of the valve guides should be
postponed until inspection and
measurement procedures have been
performed. See Inspection of Valve
Guides on page 6-41.
1. If the valve guides were not within
specifications, use a drift pin and hammer to
drive the valve guides (Figure 6-14, (1)) out of
the cylinder head.
Figure 6-14
Cleaning of Cylinder Head
Components
Thoroughly clean all components using a non-
metallic brush and an appropriate solvent. Each
part must be free of carbon, metal filings and other
debris.
Inspection of Cylinder Head
Components
Visually inspect the parts. Replace any parts that
are obviously discolored, heavily pitted or otherwise
damaged. Discard any parts that do not meet its
specified limit.
(1)
001689
A
WARNING
FUME / BURN HAZARD!
• Always read and follow safety related
precautions found on containers of
hazardous substances like parts
cleaners, primers, sealants and
sealant removers.
• Failure to comply could result in death
or serious injury.
0000014en
CAUTION
Any part which is found defective as a
result of inspection or any part whose
measured value does not satisfy the
standard or limit must be replaced.
0000119en
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