Yamaha F50D Servise Manual page 199

Drive shaft and lower case (FT50C)
Removing the drive shaft.......................................................... 8-55
Disassembling the drive shaft .................................................. 8-55
Disassembling the forward gear ............................................... 8-55
Disassembling the lower case .................................................. 8-55
Checking the pinion and forward gear...................................... 8-56
Checking the drive shaft ........................................................... 8-56
Checking the lower case .......................................................... 8-56
Assembling the forward gear.................................................... 8-57
Assembling the drive shaft ....................................................... 8-57
Assembling the lower case....................................................... 8-57
Installing the drive shaft............................................................ 8-59
Installing the propeller shaft housing assembly........................ 8-59
Installing the shift rod ............................................................... 8-60
Assembling the oil seal housing ............................................... 8-60
Installing the water pump ......................................................... 8-61
Checking the lower unit for air leakage .................................... 8-62
Installing the lower unit ............................................................. 8-62
Shimming (FT50C)
Shimming workflow .................................................................. 8-64
Shimming check sheet ............................................................. 8-65
Removing the water pump ....................................................... 8-67
Measuring the forward gear backlash before disassembly ...... 8-67
Shimming ................................................................................. 8-69
Shim location ............................................................................ 8-70
Selecting the pinion shim (T3) .................................................. 8-71
Pinion shim (T3) selection table ............................................... 8-74
Measuring the forward gear backlash ...................................... 8-76
Adjusting the forward gear shim thickness (T1) ....................... 8-76
Forward gear shim (T1) selection chart.................................... 8-78
.................................... 8-53
.................................................................... 8-64
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