SELVA MARINE Grey Whale 200 EFI Service Manual page 247

16. Turn the shift rod in direction c to the
reverse position using the shift rod push
arm.
17. Slowly turn the drive shaft clockwise and
counterclockwise and measure the back-
lash when the drive shaft stops in each
direction.
NOTE:
• When measuring the reverse gear back-
lash, add force to the reverse direction c
using the shift rod push arm.
• Measure the backlash at 4 points to find the
average.
Reverse gear backlash:
0.45–0.90 mm (0.0177–0.0354 in)
18. Add or remove shim(s) if out of specifica-
tion.
Reverse gear
backlash
Less than
0.45 mm (0.0177 in)
More than
0.90 mm (0.0354 in)
M: Measurement
Available shim thicknesses:
0.10, 0.12, 0.15, 0.18, 0.30, 0.40, and
0.50 mm
6AL3J11
Shim thickness
To be decreased by
(0.68 – M) × 0.71
To be increased by
(M – 0.68) × 0.71
Backlash (counter rotation model)
19. Remove the special service tools, and
then install the water pump assembly.
20. Fill the gear oil to the correct level.
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