Shimming (Regular Rotation Model); Shimming Workflow - Yamaha F225F Service Manual

Shimming (regular rotation model)

Shimming workflow

Remove the water pump
assembly and cover.
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?
Select the propeller shaft
shims (T4).
Install the water pump
assembly.
TIP:
• If the backlash is within specification, shimming is not required.
• When assembling the original inner parts and a new lower case, shimming is required.
• When replacing the pinion, forward gear, reverse gear, bearings, drive shaft, or propeller shaft
housing, shimming is required.
Drive shaft and lower case (regular rotation model) /
YES
NO
NO
YES
Shimming (regular rotation model)
Shimming (regular rotation model)
Shimming is not required.
Adjust the forward gear shim
thickness (T1) and reverse gear
shim thickness (T2).
0
1
2
3
4
5
6
7
8
9
10
A
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