SELVA MARINE Wahoo 15 Service Manual page 190

LOWR
11. Install the propeller, washer, and nut,
without installing the spacer 4.
12. Tighten the propeller nut to the specified
torque.
Propeller nut:
2 N·m (0.2 kgf·m, 1.5 ft·lb)
13. Turn the lower unit upside down.
14. Slowly turn the drive shaft clockwise and
counterclockwise and measure the back-
lash when the drive shaft stops in each
direction.
NOTE:
• Pull the drive shaft downward, and then
turn it.
• Measure the backlash at 4 points to find the
average.
6-25
Lower unit
4
S6AG6540
S6AG6550
Reverse gear backlash:
0.95–1.66 mm (0.0374–0.0654 in)
15. Adjust the current shim thickness if the
reverse gear backlash is out of specifica-
tion.
Reverse gear
backlash
Less than
0.95 mm (0.0374 in)
More than
1.66 mm (0.0654 in)
M: Measurement
Available shim thicknesses:
0.1, 0.2, 0.3, 0.4, and 0.5 mm
16. Remove the special service tools and
propeller, and then install the water pump
assembly.
NOTE:
Install the spacer and propeller.
17. Fill the gear oil to the correct level.
Shim thickness
To be decreased by
(1.31 – M) × 0.43
To be increased by
(M – 1.31) × 0.43
6AG3J11