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1.Check the oil passage for
clogging. Clean if necessary.
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2.Check the left
counterbalance shaft front bearing for wear, damage and
seizure. If
the bearing is damaged, replace the front case.
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3.Check the front case for
cracks and other damage.
Replace cracked or damaged front
case.
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1.Check the oil seal lip for
wear and damage. Replace the oil seal if necessary.
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2.Check the oil seal lip for
deterioration. Replace the oil seal if necessary.
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1.Check the oil holes for
clogging and clean if necessary.
2.Check the
journal for seizure, damage and contact with bearing. If
there is anything
wrong with the journal, replace the counterbalance shaft,
bearing or front case assembly if required.
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1.Assemble the oil pump
gears to the front case and rotate it to ensure smooth
rotation
with no looseness.
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2.Ensure that there is no
ridge wear on the contact surface between the front case and
the gear surface of the oil pump cover.
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3.Check the side
clearance.
Standard value:
Drive
gear 0.08 -
0.14 mm
Driven gear 0.06 -
0.12 mm
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