Doosan DB33A - Cylinder Liner Inner Diameter; Piston Outer Diameter; Piston Ring; Piston Ring Gap

37
Cylinder liner inner diameter (mm)
For steel liner
For cast liner
Liner Grade
A
C
A
B
Standard
102.021¡›102.040
(4.016~4.017 in)
102.041¡›102.060
(4.017~4.018 in)
102.021¡›102.030
(4.016~4.017 in)
102.031¡›102.042
(4.017 in)
For steel liner
For cast liner
Piston grade
A
C
A
B
Standard
101.955¡›101.975
(4.014~4.015 in)
101.975¡›101.994
(4.015~4.016 in)
101.953¡›101.967
(4.014~4.015 in)
101.963¡›101.977
(4.014~4.015 in)
20mm
2.3.10. Piston, Piston Pin and Piston Ring
Piston outer diameter (mm)
Piston and liner bore clearance
Standard (mm) 0.055
~ 0.075
Piston ring
Piston ring and ring groove clearance (mm)
1st compression ring
2nd compression ring
Oil ring
Standard
0.085¡›0.11
(.003~.009 in)
0.035¡›0.055
(.001~.002 in)
0.03¡›0.07
(.001~.003 in)
Limit
0.2
(.008 in)
0.15
(.006 in)
0.15
(.006 in)
1st compression ring
2nd compression ring
Oil ring
Standard
0.25¡›0.45
(.010~.018 in)
0.2¡›0.4
(.008~.016 in)
0.2¡›0.4
(.008~.016 in)
Limit
1.5
(.006 in)
1.5
(.006 in)
1.5
(.006 in)
Piston ring gap (mm)