SELVA MARINE Grey Whale 200 EFI Service Manual page 215

Available shim thicknesses:
0.10, 0.12, 0.15, 0.18, 0.30, 0.40, and
0.50 mm
11. Remove the special service tools from
the propeller shaft.
12. Apply a load to the reverse gear by
installing the propeller 8, spacer 9
(without the washer 0), and washer A
as shown.
NOTE:
Tighten the propeller nut B while turning the
drive shaft until the drive shaft can no longer
be turned.
13. Slowly turn the drive shaft clockwise and
counterclockwise and measure the back-
lash when the drive shaft stops in each
direction.
6AL3J11
Backlash (regular rotation model)
NOTE:
Measure the backlash at 4 points to find the
average.
Reverse gear backlash:
0.32–0.65 mm (0.0126–0.0256 in)
14. Add or remove shim(s) if out of specifica-
tion.
Reverse gear
backlash
Less than
0.32 mm (0.0126 in)
More than
0.65 mm (0.0256 in)
M: Measurement
Available shim thicknesses:
0.10, 0.12, 0.15, 0.18, 0.30, 0.40, and
0.50 mm
15. Remove the special service tools, and
then install the water pump assembly.
16. Fill the gear oil to the correct level.
Shim thickness
To be decreased by
(0.49 – M) × 0.71
To be increased by
(M – 0.49) × 0.71
6-30
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