6D81G11
LOWR
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Lower unit
Special service tools .....................................................................................6-1
Lower unit.......................................................................................................6-4
Removing the lower unit ............................................................................6-8
Removing the water pump and shift rod....................................................6-9
Disassembling the oil seal housing ...........................................................6-9
Checking the water pump and shift rod .....................................................6-9
Propeller shaft housing...............................................................................6-10
Removing the propeller shaft housing assembly.....................................6-11
Disassembling the propeller shaft assembly ...........................................6-11
Disassembling the propeller shaft housing..............................................6-11
Checking the propeller shaft housing ......................................................6-12
Checking the propeller shaft....................................................................6-12
Assembling the propeller shaft assembly ................................................6-12
Assembling the propeller shaft housing...................................................6-13
Drive shaft and lower case..........................................................................6-15
Removing the drive shaft.........................................................................6-17
Disassembling the drive shaft..................................................................6-17
Disassembling the forward gear ..............................................................6-17
Disassembling the lower case .................................................................6-17
Checking the pinion and forward gear.....................................................6-18
Checking the bearings.............................................................................6-18
Checking the drive shaft ..........................................................................6-18
Checking the lower case .........................................................................6-18
Assembling the lower case......................................................................6-19
Assembling the forward gear...................................................................6-19
Assembling the drive shaft ......................................................................6-20
Installing the drive shaft...........................................................................6-20
Installing the propeller shaft housing .......................................................6-20
Installing the water pump and shift rod....................................................6-21
Installing the lower unit ............................................................................6-22
Shimming......................................................................................................6-25
Shimming.................................................................................................6-26
Selecting the pinion shims.......................................................................6-26
Selecting the forward gear shims ............................................................6-27
Backlash ....................................................................................................... 6-28
Measuring the forward gear backlash .....................................................6-28
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