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TM 10-4320-311-14
REMOVAL: Refer to Figure 6-5.
CAUTION
Oil pump cover and oil filter cover do not have to be disassembled to remove crankcase cover and
should only be disassembled when necessary.
a.
Remove 14 crankcase cover bolts (1).
b.
Remove one additional crankcase cover bolt (2) located inside of the bolt pattern and above the lube oil strainer.
c.
Remove crankcase cover (3) and discard gasket (4).
d.
Remove and discard oil seal (5).
INSPECTION:
a.
Clean out each oil hole on the crankcase cover with diesel fuel. Insure oil passages are not clogged.
b.
Check the main bearing metal Insert on the crankcase side for discoloration or damage.
Figure 6-6. Main Bearing Insert
REPAIR:
a.
Refer to Figure 6-6. Replace the main bearing metal Insert If it is discolored or damaged.
(1)
Remove bad main bearing metal insert (1).
(2)
Insert main bearing (1) into crankcase cover (2). Carefully fit the main bearing so that the oil groove is in
the upper half and the oil hole in the bearing is aligned with the oil groove.
(3)
Pressfit the main bearing until recess is 0.0039 inch (1 mm) past the cover edge.
b.
Replace the camshaft ball bearing or the balance shaft ball bearing.
(1)
Remove bad bearing (3) using a mechanical bearing puller.
(2)
Pressfit the new ball bearing (3) into the crankcase cover (2).
6-9
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