TM 5-3810-307-24-2-2
Inspect the main bearing bores for damage or
abnormal wear.
Install the main bearings and measure main bearing
bore diameter with main bolts tightened to 176 Nm
[130 ft-Ib].
NOTE
Record this measurement for use in
determining main bearing clearance as
described in procedure (1-12).
Diameter
mm
in
83.106
MAX
3.2720
Remove the bearing and install the main bearing cap.
Torque the main bearing capscrews to 176 Nm [130
ft-lb]. Measure the main bearing bore with the bearing
removed.
Diameter
mm
in
87.983
MIN
3.4639
88.019
MAX
3.4653
Inspect the camshaft bore without the bushing for
scoring or excessive wear.
Diameter No. 1
mm
in
57.222
MIN
2.2528
57.258
MAX
2.2543
Measure the diameter of camshaft bores No. 2 through
No. 5.
Diameter No. 2-5
mm
in
54.089
MIN
[2.1295]
54.164
MAX
[2.1324]
Service bushings are available and must be used if
wear exceeds above dimensions.
1-16
