TM 5-4310-393-14
Max.
Item
Size
Size
Perm.
Remarks
(In)
(mm)
Wear (in)
Wall thickness of bearing
shells (new engine).
Diameter of crankpin
(undersize).
Wall thickness of bearing
shells (oversize).
Diameter for ball hub
(governor).
Diameter for ball shell.
Ball shell inside diameter.
Diameter for gearwheel on
crankshaft
Regrind at crank pin.
Axial play:
a) Cold engine (10-30° C).
b) At working temperature
0.0787/
0.0791
1.6315/
1.6311
0.0885/
0.0890
1.1428/
1.1433
1.1015/
1.1007
1.1035/
1.1055
0.8675/
0.8680
0.0197
0.012/
0.032
0.016/
0.036
2.010/
1.998
41.440/
41.430
2.260/
2.248
29.041/
29.028
27.980/
27.959
22.048/
22.035
0.5
0.3/0.8
0.4/0.9
0.0007
Corner
radius
crankpin
0.1181 in (3 mm).
Connecting Rod
Bore diameter for piston pin
bushing.
Bore for journal bearing.
Bushing, piston pin, external
diameter.
Bushing, piston pin, internal
diameter:
Loose
Assembled
Bearing cap bolt thread
1.1024/
1.1029
1.8108/
1.8114
1.1043/
1.1037
0.9875/
0.9869
0.9856/
0.9850
28.013/
28.000
46.010/
45.094
28.048/
28.035
25.082/
25.068
25.033/
25.020
M8
0.006 in
0.15mm
Journal Bearing
Outside diameter.
Inside diameter
Width.
1.811
1.6529/
1.6538
1.0433/
1.0354
46
42.006/
42.014
26.5/26.3
1.659 in
42.15mm
Bearing play In new condition
.0015/.0030in,
0.040/0.076mm
5-4
