TM 5-2420-230-24-2
B3.9 and B5.9 Series Engines
Bearings, Main (001-006)
Section 1 - Cylinder Block - Group 01
Page 1-19
Lubricate and install the main bearing.
Use the screwdriver to push the main bearing into position
as you rotate the crankshaft.
23 mm
NOTE: The crankshaft must rotate freely.
Tighten the capscrews evenly and in sequence.
Torque Value: Step 1
60 Nm
[44 ft-lb]
2
90 Nm
[66 ft-lb]
3
Turn clockwise 90 degrees.
Check the main bearing installation and the size of the
main bearings if the crankshaft does not rotate freely.
NOTE: The dimensions of the thrust bearing and crank-
shaft journal determine end play.
Measure the crankshaft end play.
Dim. (A) End Play Limits
mm
in
0.102
MIN
0.004
0.432
MAX
0.017
10 mm
Install the lubricating oil pan and gasket. Refer to Proce-
dure 007-025.
Torque Value: 24 Nm
[18 ft-lb]
Fill the lubricating oil pan. Refer to the Operation and
Maintenance Manual, B Series Engines, Bulletin No.
3810205 for the correct lubricating specification.
L-697
