Yanmar 4TNV98, Service Manual

Page: 130 / 246

4TNV98 & 4TNE98 Diesel Engine Section 3. Engine 128
Figure 6-127
3. Reinstall one circlip (Figure 6-127, (5)) into the
piston. Ensure the circlip is securely seated in the
groove.
IMPORTANT
The piston and connecting rod must be assembled
together in the correct orientation. The orientation of
the piston and connecting rod are
different
depending on engine model.
Piston to Connecting Rod Orientation - By Model
Orient the piston identification mark stamped on top
of the piston on the same side as the rod and cap
match marks stamped on the connecting rod.
NOTE : The actual appearance of the match marks
on the piston and connecting rod may vary, but they
will always be in the same locations.
Figure 6-128
(1) Piston Identification Mark.
(2) Embossed Mark on Connecting Rod.
(3) Rod and Cap Match Marks.