SELVA MARINE Fin Whale 225 EFI, Service Manual

Page: 246 / 399

LOWR
Lower unit
6-61
6AL3J11
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.
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.
10. Add or remove shim(s) if out of specifica-
tion.
M: Measurement
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 ° .
Backlash indicator
4
: 90890-06706
Magnet base plate
5
: 90890-07003
Dial gauge set
6
: 90890-01252
Magnet base B
7
: 90890-06844
Forward gear backlash:
0.46 – 0.82 mm (0.0181 – 0.0323 in)
Forward gear
backlash
Shim thickness
Less than
0.46 mm (0.0181 in)
To be decreased by
(0.64
– M)
×
0.71
More than
0.82 mm (0.0323 in)
To be increased by
(M
– 0.64)
×
0.71
Available shim thicknesses:
0.10, 0.12, 0.15, 0.18, 0.30, 0.40, and
0.50 mm