TM 5-3805-260-24
CRANKSHAFT AND GEAR
REMOVE CRANKSHAFT AND
GEAR
Tools Needed
A
B
OTC Model 1730-A Engine
Stand
1
8B7551
Bearing Puller Attachment 1
1 P820
Puller Group
1
8B7549
Leg
2
8B7561
Step Plate
1
3H465
Plate
4
1 B4207
Nut
2
5P3100
Pump Group
1
start by:
a)
remove flywheel housing
b)
remove valve lifters
c)
remove pistons
d)
remove timing gear cover and oil pump
1.
Fasten a hoist and put the engine in position
on tool (A).
2. Turn the crankshaft until the timing mark on the
crankshaft gear is in alignment with the timing
mark on the camshaft gear.
NOTE: For more detail about removal of main bearings
see REMOVE AND INSTALL CRANKSHAFT MAIN
BEARINGS.
3.
Remove bolts (1) and main bearing caps (2).
Remove the lower halves of the main
bearings from the caps.
4.
Install two of the bolts that hold the flywheel
in place in the end of crankshaft.
5.
Fasten a hoist and remove crankshaft (3)
from
the
engine.
The
weight
of
the
crankshaft is 120 lb.(54 kg).
CAUTION: Be careful not to cause damage to the
crankshaft journals when the crankshaft is removed.
6.
Remove the upper halves of the main
bearings from the cylinder block.
7.
Install tooling (B) and remove the gear from
the crankshaft.
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