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Check whether crankshaft bearing revolution has noise or
loose condition.
If there is noise or loose condition, replace the crankshaft
component.
Note:
Oil seal disassembled shall not be used again.
Use special tools to remove oil seal.
17.4 Installation
Assemble crankcase according to reversed sequence of removal.
Note:
Install oil seal with special tools, in case the oil seal is damaged.
Inspection and maintenance of exhaust gas discharge control
system