TOHATSU BFT115A Service Manual page 598

GEAR CASE (COUNTER ROTATION)
While applying the specified air pressure to the gear
case, move the shift rod (1) right and left five or six
times using pliers.
• Wrap a shop towel (2) around the shift rod spline to
move the shift rod with pliers.
While applying the specified air pressure to the gear
case, turn the vertical shaft (1) five or six turns
clockwise.
Be sure to turn the vertical shaft clockwise, or damage
to the water pump impeller can occur.
While applying the specified air pressure to the gear
case, turn the propeller shaft (1) right and left two or
three turns.
Leave the gear case for five minutes and check that the
air pressure is maintained.
If the air pressure drops, place the gear case in a
container filled with water. Apply the specified air
pressure to the gear case again, move the shift rod,
vertical shaft and propeller shaft, and locate the point
where the air is leaking.
Remove the gear case from the water and replace the
water seal or O-ring where the air is leaking.
After replacing the water seal or O-ring, perform the
pressure check again and be sure that air is not leaking.
Remove the gear case pressure tester and the adapter
from the gear case.
Install a new O-ring onto the oil check bolt, and tighten
the oil check bolt to the specified torque.
TORQUE: 6.5 N·m (0.66 kgf·m, 4.8 lbf·ft)
17-52
(1)
(1)
(1)
(2)