TM 5-2420-230-24-2
B3.9 and B5.9 Series Engines
Vibration Damper (001-052)
Section 1 - Cylinder Block - Group 01
Page 1-93
WARNING
Wear protective gloves to prevent personal injury when
handling parts that have been heated.
Remove the damper from the oven and check for fluid
leakage. If there is leakage, replace the damper.
Measure (001-052-010)
Measure the vibration dampers eccentricity.
Install a dial indicator as illustrated.
Rotate the crankshaft with engine barring tool, Part No.
3377371.
Record the dial indicators movement.
Vibration Damper Eccentricityper 25.4 mm [1.0 in]
of Diameter
mm
in
0.10
MAX
0.004
NOTE: If the eccentricity is not within specification the
vibration damper must be replaced.
Measure the vibration damper wobble.
Install a dial indicator as illustrated.
Push the crankshaft to the front or rear and zero the dial
indicator.
L-771
