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TM10-4320-316-14
6-5. CRANKCASE ASSEMBLY REPAIR AND REPLACEMENT. - Continued.
c. Repair.
(1) Replace the main bearing metal insert if it is discolored or damaged.
(a) Remove bad main bearing metal insert (1).
(b) 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.
(c) Press fit the main bearing until recess is 0.0039 inch (1 mm) past the cover edge.
Figure 6-2. Main Bearing Insert Removal.
(2) Replace the camshaft ball bearing or the balance shaft ball bearing.
(a) Remove bad bearing (3) using a mechanical bearing puller.
(b) Press fit the new ball bearing (3) into the crankcase cover (2).
(3) Refer to Figure 6-2. Replace crankshaft oil seal.
(a) Insert new crankshaft oil seal (5) into crankcase cover (3).
(b) Insert crankshaft seal into crankcase cover until it is 0.1575 inch (4 mm) deep from the end of
crankcase.
(4) Replace crankcase cover gasket (4).
6-4
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