Yanmar 4TNV98, Service Manual

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4TNV98 & 4TNE98 Diesel Engine Section 3. Engine 101
Figure 6-68
1) Fan End
2) Camshaft Side
Reassembly of Rocker Arm Assembly
4TNV98 Engine
1. Reinstall the valve bridges (Figure 6-69, (3)) in
their original locations and ensure each seat
(Figure 6-69, (4)) is in place.
2. Insert the push rods (Figure 6-69, (2)) in their
original locations.
Figure 6-69
IMPORTANT
The wave washers (Figure 6-70, (2)) must be
installed with the bow facing the rocker arms
(Figure 6-70, (1)).
Figure 6-70
IMPORTANT
Ensure the lubrication holes (Figure 6-71, (1)) in the
rocker arm shaft are oriented correctly with respect
to the rocker arms
(Figure 6-71, (2)).
Figure 6-71
3. Lubricate the rocker arm shaft. Slide the rocker
arm supports (Figure 6-72, (6)) , wave washers
(Figure 6-72, (7)) , rocker arms
(Figure 6-72, (8)) , and fuel injector retainers
(Figure 6-72, (4)) onto the shaft.