Yamaha F150A Service Manual page 144

LOWR
Special service tools .....................................................................................6-1
Lower unit (regular rotation model) ............................................................. 6-4
Removing the lower unit ............................................................................6-8
Removing the water pump and shift rod.................................................... 6-8
Checking the water pump and shift rod .....................................................6-9
Propeller shaft housing (regular rotation model) ..................................... 6-10
Removing the propeller shaft housing assembly..................................... 6-12
Disassembling the propeller shaft assembly ...........................................6-12
Disassembling the propeller shaft housing.............................................. 6-12
Checking the propeller shaft housing ......................................................6-13
Checking the propeller shaft.................................................................... 6-13
Assembling the propeller shaft assembly ................................................ 6-14
Assembling the propeller shaft housing...................................................6-14
Drive shaft and lower case (regular rotation model) ................................6-16
Removing the drive shaft.........................................................................6-17
Disassembling the drive shaft housing ....................................................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 housing......................................................... 6-19
Installing the drive shaft...........................................................................6-20
Installing the propeller shaft housing .......................................................6-21
Installing the water pump and shift rod....................................................6-21
Installing the lower unit ............................................................................6-23
Shimming (regular rotation model) ............................................................ 6-25
Shimming.................................................................................................6-26
Selecting the pinion shims....................................................................... 6-26
Selecting the forward gear shims ............................................................ 6-27
Selecting the reverse gear shims ............................................................ 6-28
Backlash (regular rotation model)..............................................................6-29
Measuring the forward and reverse gear backlash .................................6-29
Lower unit
63P3F11