SELVA MARINE Fin Whale 225 EFI, Service Manual

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6AL3J11
6-28
1
2
3
4
5
6
7
8
9
NOTE:
Measure the spline width at 4 points to find
the width average.
4. Select the propeller shaft shim T4.
NOTE:
After calculating the shim thickness, select
the shim with the closest thickness from the
table.
5. Assemble the lower unit with the selected
shim.
6. Measure the propeller shaft axial free
play. Reselect the propeller shaft shim if
out of specification.
Backlash
(regular rotation model)
6
Measuring the forward and reverse
gear backlash
1. Install the lower unit onto a repair stand.
2. Remove the water pump assembly.
3. Set the gear shift to the neutral position
at the lower unit.
4. Turn the lower unit so that it is positioned
as shown.
5. Install the special service tool.
Calculation formula:
Propeller shaft shim thickness T4 =
79.8
– C1 – C2 – C3
Calculated number Shim thickness (mm)
1.81 – 1.84 1.80
1.85 – 1.94 1.90
1.95 – 2.04 2.00
2.05 – 2.14 2.10
2.15 – 2.20 2.20
Magnet base plate
1
: 90890-07003
Dial gauge set
2
: 90890-01252
Magnet base B
3
: 90890-06844
Propeller shaft free play:
0.20 – 0.50 mm (0.0079 – 0.0197 in)
Shift rod push arm: 90890-06052
S6AL6760
3
1
2
Shimming (regular rotation model) / Backlash (regular rotation model)