SELVA MARINE Grey Whale 200 EFI Service Manual page 246

LOWR
8. Install the backlash indicator onto the
drive shaft (22.4 mm [0.88 in] in diame-
ter), and then install the dial gauge.
NOTE:
Install the dial gauge so that the plunger a
contacts the mark b on the backlash indica-
tor.
Backlash indicator 4: 90890-06706
Magnet base plate 5: 90890-07003
Dial gauge set 6: 90890-01252
Magnet base B 7: 90890-06844
9. Slowly turn the drive shaft clockwise and
counterclockwise and measure the back-
lash when the drive shaft stops in each
direction.
NOTE:
Measure the backlash at 4 points to find the
average.
Forward gear backlash:
0.46–0.82 mm (0.0181–0.0323 in)
10. Add or remove shim(s) if out of specifica-
tion.
6-61
Lower unit
Forward gear
backlash
Less than
0.46 mm (0.0181 in)
More than
0.82 mm (0.0323 in)
M: Measurement
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. Turn the shift rod in direction c to the
reverse position using the shift rod push
arm.
13. Turn the drive shaft clockwise until the
dog clutch 8 is fully engaged.
14. Turn the shift rod in direction d to the
neutral position using the shift rod push
arm.
15. Turn the drive shaft counterclockwise
approximately 90°.
Shim thickness
To be decreased by
(0.64 – M) × 0.71
To be increased by
(M – 0.64) × 0.71
6AL3J11