Shimming (Ft50C) - Yamaha F50D Servise Manual

Shimming (FT50C)

Shimming workflow
Remove the water pump
assembly and oil seal
housing.
Measure the backlash before
disassembly.
Within specification?
Disassemble the lower unit.
Select the pinion shims (T3).
Assemble the lower unit.
Measure the backlash.
Within specification?
Install the water pump
assembly
and oil seal housing.
TIP:
9 Shimming is not required if the backlash is within specification.
9
Shimming is required when assembling the original inner parts and a new lower case.
9 Shimming is required when replacing the pinion, forward gear, bearings, shaft, and housing.
Drive shaft and lower case (FT50C) / Shimming (FT50C)
YES
NO
NO
YES
Shimming is not required.
Adjust the forward gear shim
thickness (T1).
0
1
2
3
4
5
6
7
8
9
10
A
8-64