Komatsu 4D98 Series Shop Manual page 75

4. Engine Body
l
Plston ring dimension
r
Standard
Limit
4TNE94.98
T
4TNEi 06(T)
Top ring
Second ring
Ring groove width
Ring width
Side clearance
End clearance
Ring width
groove
Ring width
Side clearance
/ End clearance
2.040-2.060 -
1.940-l .960 1.920
0.080-0.120 -
0.250-0.450 0.540
2.080-2.095 2.195
1.970-l .990 1.950
0.090-0.125 0.245
1 0.450-0.650 1 0.730
/ 3.015-3.030 ) 3.130
) 2.970-2.990 j 2.950
( 0.025-0.060 1 0.180
Oil ring 1 Ring groove width
1 Ring width
1 Side clearance
1 End clearance
/ Ring groove width
/ Ring width
/ Side clearance
1 End clearance
1 0.250-0.450 1 0.550
1 2.520-2.540 / -
/ 2.440-2.460 ( 2.420
1 0.060-0.100 / -
I 0.300-0.450 I 0.540
Top ring
Second rinq / Ring aroove width 1 2.070-2.085 1 2.185
1 Ring width I 1.970-1.990 I 1.950
Side clearance 0.080-0.115 0.235
End clearance 0.450-0.600 0.680
Oil ring Ring width
groove
3.015-3.030 3.130
Ring width 2.970-2.990 2.950
Side clearance 0.025-0.060 0.180
End clearance 0.300-0.500 0.600
Joint end clearance
-IF
-=?-prz
' Piston ring
),@' Cylinder block
'Head surface
Ring joint end'clearance
measurement
4-27