TM 5-2420-230-24-2
Connecting Rod (001-014)
B3.9 and B5.9 Series Engines
Page 1-42
Section 1 - Cylinder Block - Group 01
Inspect the piston pin bore for damage or misalignment of
the oil passage and bushing.
Measure the connecting rod piston pin bushing inside di-
ameter.
Connecting Rod Piston Pin Bushing Diameter
mm
in
40.019
MIN
1.5755
40.042
MAX
1.5765
Measure the connecting rod crank bore with the bearing
shells removed and the capscrews tightened.
[74 ft-lb]
Connecting Rod Crank Bore Diameter (Bearings
Removed)
mm
in
72.987
MIN
2.8735
73.013
MAX
2.8745
If the connecting rod crank-end bore measurements are
not within specifications, replace the rod assembly.
L-720