Mitsubishi S12A2 Service Manual page 49

Table of Contents

Advertisement

Item
Standard
Crankpin
outside
diameter
Under size
Standard
Crankshaft
main journal
outside
Under size
diameter
Crankshaft
Parallelism of journal and crankpin
Circularity of journal and crankpin
Cylindricity of journal and crankpin
Fillet radius of pin
Fillet radius of journals
Hardness of journals and crankpins
Finishing surface roughness
Angular deviation between pins
Crankpin width
Standard
Rearmost
crank jour-
nal width
Over size
Crankshaft
Runout
End play
(width between webs and thrust bearings)
Nominal
value
0.25 [0.0098]
0.50 [0.0197]
ø104 [4.1]
0.75 [0.0295]
1.00 [0.0394]
0.25 [0.0098]
0.50 [0.0197]
ø130 [5.1]
0.75 [0.0295]
1.00 [0.0394]
[0.0004] or less over
Diameter difference
0.01 [0.0004] or less
Diameter difference
0.01 [0.0004] or less
R7 [0.28]
R7 [0.28]
Ra 0.2 μm [0.008 µin.]
108
[4.2520]
0.25 [0.0098]
0.50 [0.0197]
0.75 [0.0295]
58 [2.2835]
1.00 [0.0394]
1.25 [0.0492]
1.50 [0.0591]
0.04 [0.0016] or less
Chapter 2 SERVICE DATA
Standard value
Limit value
103.900 to 103.920
103.860
[4.0905 to 4.0913]
[4.0890]
103.650 to 103.670
103.610
[4.0807 to 4.0815]
[4.0791]
103.400 to 103.420
103.360
[4.0709 to 4.0716]
[4.0693]
103.150 to 103.170
103.110
[4.0610 to 4.0618]
[4.0594]
102.900 to 102.920
102.860
[4.0512 to 4.0520]
[4.0496]
129.880 to 129.900
129.840
[5.1134 to 5.1142]
[5.1118]
129.630 to 129.650
129.590
[5.1035 to 5.1043]
[5.1020]
129.380 to 129.400
129.340
[5.0937 to 5.0945]
[5.0921]
129.130 to 129.150
129.090
[5.0838 to 5.0846]
[5.0823]
128.880 to 128.900
128.840
[5.0740 to 5.0748]
[5.0724]
Deviation of 0.01
0.03
[0.0012]
entire pin length
0.03
[0.0012]
0.03
[0.0012]
6.8 to 7.0
[0.2677 to 0.2756]
6.8 to 7.0
[0.2677 to 0.2756]
Hv > 620
±0.3°
108.20 to 108.30
[4.2598 to 4.2638]
58.00 to 58.03
[2.2835 to 2.2846]
58.25 to 58.28
[2.2933 to 2.2945]
58.50 to 58.53
[2.3031 to 2.3043]
58.75 to 58.78
[2.3130 to 2.3142]
59.00 to 59.03
[2.3228 to 2.3240]
59.25 to 59.28
[2.3327 to 2.3339]
59.50 to 59.53
[2.3425 to 2.3437]
0.10 [0.0039]
0.200 to 0.395
0.500 [0.0197]
[0.0079 to 0.0156]
Unit: mm [in.]
Remarks
TIR
2-7

Advertisement

Table of Contents
loading

Table of Contents