TM 9-2320-289-34
3-18. CRANKSHAFT, MAIN BEARINGS, AND FLYWHEEL INSTALLATION.
This task covers:
a. Installation
INITIAL SETUP:
Equipment Condition
Materials/Parts
• Crankshaft, main bearings, and
• One rear main seal kit
flywheel removed, (See paragraph 3-1 5)
• Sixteen connecting rod nuts
l Lubricating oil (Item 49, Appendix B)
Tools/Test Equipment
l Torque wrench
a . I N S T A L L A T I O N
NOTE
l If installing main bearings (5) and crankshaft (6), perform steps 1, 2,
and 4 through 9.
l If installing main bearings (5) and crankshaft (6) was not removed,
perform steps 3, 5, and 6. if installing rear main bearings, also perform
step 4. If installing #3 main bearings, also perform step 7.
l if installing flywheel, perform step 9.
1.
Coat inner surface of upper main
bearings with lubricating oil and install
in engine block (1) as marked.
2 .
Position crankshaft (6) in engine
block (1) .
CAUTION
Care should be taken when using
biunt-edged tool to install upper
main bearing, Failure to follow this
caution may result in damage to
crankshaft (6).
3. Coat surface of upper main bearing
with lubricating oil and insert plain
(unnotched) end between crankshaft
(6) and indented (notched) side of
engine block (1). Rotate crankshaft
until upper main bearing is rolled into
engine block. Using blunt-edged tool,
tap upper main bearing into engine
block until it seats.
TA50667
3 - 5 8
