Doosan DX60R Shop Manual page 331

3. Reinstall the oil ring expander (4, Figure 214). Reinstall the
oil ring (3, Figure 214) with the end gap at 180° from the
expander end gap.
4. Reinstall the second compression ring (2, Figure 214).
This ring is identified by its dark color and tapered face
profile.
5. Reinstall the top compression ring (1, Figure 214). This
ring is identified by its silver color and barrel-shaped face
profile.
The oil ring expander (4, Figure 214) end gap must be
located 180° from the oil ring (3, Figure 214) end gap.
6. Stagger the piston ring end gaps at 120° intervals (1, 2, 3,
Figure 214)
Reference
Number
1
2
3
Engine
IMPORTANT
Description
Top Compression Ring End Gap
Second Compression Ring End Gap
Oil Ring End Gap
Figure 214
Figure 215
SP001693
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