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CYLINDER/PISTON/PISTON RING
Cylinder distortion
Piston to cylinder clearance
Cylinder bore
Cylinder measuring position
Piston skirt diameter
Piston measuring position
Cylinder bore wear
Piston ring end gap
2nd
Piston ring free end
gap
2nd
Piston ring to groove
clearance
2nd
Piston ring groove
width
2nd
Piston ring thickness
2nd
Pin clearance in piston pin
hole
Piston pin outside diameter
Piston pin hole diameter
Pin clearance in conrod
small end
Conrod small end bore
Unit
Limit
mm (in)
STD
mm (in)
Limit
mm (in)
STD
mm (in)
mm (in)
STD
mm (in)
mm (in)
Limit
mm (in)
STD
mm (in)
1st
Limit
mm (in)
STD
mm (in)
Limit
mm (in)
STD
mm (in)
1st
Limit
mm (in)
STD
mm (in)
Limit
mm (in)
STD
mm (in)
1st
Limit
mm (in)
STD
mm (in)
Limit
mm (in)
1st
STD
mm (in)
STD
mm (in)
Oil
STD
mm (in)
1st
STD
mm (in)
STD
mm (in)
STD
mm (in)
Limit
mm (in)
STD
mm (in)
Limit
mm (in)
STD
mm (in)
Limit
mm (in)
STD
mm (in)
Limit
mm (in)
STD
mm (in)
DF40/50 "K6" ('06) MODEL
Data
DF40
0.060 (0.0024)
0.020 – 0.040 (0.0008 – 0.0016)
0.100 (0.0039)
71.000 – 71.020 (2.7953 – 2.7961)
50 (2.0) from cylinder top surface
70.970 – 70.990 (2.7941 – 2.7949)
19 (0.7) from piston skirt end
0.100 (0.0039)
0.10 – 0.25 (0.004 – 0.010)
0.70 (0.028)
0.25 – 0.40 (0.010 – 0.016)
1.00 (0.039)
Approx. 7.5 (0.30)
6.0 (0.24)
Approx. 11.0 (0.43)
8.8 (0.35)
0.02 – 0.06 (0.001 – 0.002)
0.10 (0.004)
0.02 – 0.06 (0.001 – 0.002)
0.10 (0.004)
1.01 – 1.03 (0.040 – 0.041)
1.01 – 1.03 (0.040 – 0.041)
2.01 – 2.03 (0.079 – 0.080)
0.97 – 0.99 (0.038 – 0.039)
0.97 – 0.99 (0.038 – 0.039)
0.006 – 0.018 (0.0002 – 0.0007)
0.040 (0.0016)
17.996 – 18.000 (0.7085 – 0.7087)
17.980 (0.7079)
18.006 – 18.014 (0.7089 – 0.7092)
18.040 (0.7102)
0.003 – 0.015 (0.0001 – 0.0006)
0.050 (0.0020)
18.003 – 18.011 (0.7088 – 0.7091)
9
DF50
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