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Engine Block
Item
Measurement
Qualification
Standard or New
Service Limit
2-4
Standards and Service Limits
Block
Warpage of deck
0.07 mm (0.003 in.) max.
0.10 mm (0.004 in.)
Bore diameter
A or l
86.010
86.020 mm (3.3862
3.3866 in.) 86.070 mm (3.3886 in.)
B or II
86.000
86.010 mm (3.3858
3.3862 in.) 86.070 mm (3.3886 in.)
Bore taper
0.05 mm (0.002 in.)
Reboring limit
0.25 mm (0.01 in.)
Piston
Skirt O.D. at 11 mm (0.4 in.) from
bottom of skirt
No letter or A
85.980
85.990 mm (3.3850
3.3854 in.) 85.930 mm (3.3831 in.)
Letter B
85.970
85.980 mm (3.3846
3.3850 in.) 85.920 mm (3.3827 in.)
Clearance in cylinder
0.020
0.040 mm (0.0008
0.0016 in.)
0.05 mm (0.002 in.)
Piston ring
Ring-to-groove clearance (K20Z2)
Top
0.035
0.060 mm (0.0014
0.0024 in.)
0.13 mm (0.005 in.)
Second
0.030
0.055 mm (0.0012
0.0022 in.)
0.13 mm (0.005 in.)
Ring-to-groove clearance (K20Z3)
Top
0.045
0.070 mm (0.0018
0.0028 in.)
0.13 mm (0.005 in.)
Second
0.040
0.065 mm (0.0016
0.0026 in.)
0.13 mm (0.005 in.)
Ring end gap (K20Z2)
Top
0.20
0.35 mm (0.008
0.014 in.)
0.60 mm (0.024 in.)
Second
0.40
0.55 mm (0.016
0.022 in.)
0.70 mm (0.028 in.)
Oil
0.20
0.70 mm (0.008
0.028 in.)
0.80 mm (0.031 in.)
Ring end gap (K20Z3)
Top
0.20
0.35 mm (0.008
0.014 in.)
0.60 mm (0.024 in.)
Second
0.50
0.65 mm (0.020
0.026 in.)
0.75 mm (0.030 in.)
Oil
0.20
0.70 mm (0.008
0.028 in.)
0.80 mm (0.031 in.)
Piston pin
O.D.
21.961
21.965 mm (0.8646
0.8648 in.) 21.953 mm (0.8643 in.)
Pin-to-piston clearance
0.005 to
0.002 mm
(
0.00020 to
0.00008 in.)
0.005 mm (0.0002 in.)
Connecting rod
Pin-to-rod clearance
0.005
0.015 mm (0.0002
0.0006 in.)
0.02 mm (0.0008 in.)
Small-end bore diameter
21.970
21.976 mm (0.8650
0.8652 in.)
Large-end bore diameter (K20Z2)
48.0 mm (1.89 in.)
Large-end bore diameter (K20Z3)
51.0 mm (2.01 in.)
End play
0.15
0.30 mm (0.006
0.012 in.)
0.40 mm (0.016 in.)
Crankshaft
Main journal diameter
No. 1, 2, 4, 5
journals
54.984
55.008 mm (2.1648
2.1657 in.)
No. 3 journal
54.976
55.000 mm (2.1644
2.1654 in.)
Rod journal diameter (K20Z2)
44.976
45.000 mm (1.7707
1.7717 in.)
Rod journal diameter (K20Z3)
44.976
45.000 mm (1.7707
1.7717 in.)
Rod/main journal taper
0.005 mm (0.0002 in.) max.
0.010 mm (0.0004 in.)
Rod/main journal out-of-round
0.005 mm (0.0002 in.) max.
0.010 mm (0.0004 in.)
End play
0.10
0.35 mm (0.004
0.014 in.)
0.45 mm (0.018 in.)
Runout
0.03 mm (0.0012 in.) max.
0.04 mm (0.0016 in.)
Crankshaft
bearing
Main bearing-to-journal oil clearance
No. 1, 2, 4, 5
journals
0.017
0.041 mm (0.0007
0.0016 in.)
0.050 mm (0.0020 in.)
No. 3 journal
0.025
0.049 mm (0.0010
0.0019 in.)
0.055 mm (0.0022 in.)
Connecting rod bearing-to-journal oil
clearance (K20Z2)
0.020
0.050 mm (0.0008
0.0020 in.)
0.060 mm (0.0024 in.)
Connecting rod bearing-to-journal oil
clearance (K20Z3)
0.032
0.066 mm (0.0013
0.0026 in.)
0.077 mm (0.0030 in.)
08/08/21 14:07:14 61SNR030_020_0004