Yanmar 3TNV82A-B Service Manual page 184

ENGINE
Removal of Valve Cover
Note: The high pressure fuel injection lines and
valve cover grommets must be removed
prior to removing the valve cover. See
Removal of Fuel Injectors on page 7-35.
1. Remove the high-pressure fuel lines.
2. Use a flat-blade screwdriver (Figure 6-42) to
remove the fuel injection line grommets
(Figure 6-43, (1)) from the valve cover
(Figure 6-43, (3)) and fuel injectors
(Figure 6-43, (2)). There is a notch at the 3
o'clock position in the valve cover opening to
insert the screwdriver.
Figure 6-42
3. Remove the valve cover nuts (Figure 6-43, (4)).
4. Remove the O-ring (Figure 6-43, (5)) on each
valve cover nut.
6-52
(2)
(1)
Figure 6-43
5. Remove the valve cover (Figure 6-43, (3)).
Discard the valve cover gasket
(Figure 6-43, (6)).
6. Inspect and clean the crankcase breather
assembly. See Inspect Crankcase Breather
System on page 5-40.
TNV DI Service Manual
4-Valve Cylinder Head
(3)
(4)
(5)
(6)
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