TOHATSU BFT250A Service Manual page 495

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THRUST SHIM
Remove the trim tab from the gear case (page 16-8).
Cross reference the engagement mark [1] located on
the trim tab installation part of the gear case [2] and
refer to the shim selection table to determine the
required thickness of the shim (St).
Shim selection table
Select the shims from the thrust shims of different
thickness, and install the shim.
Install the trim tab on the gear case (page 16-9).
After shim selection, inspect the propeller shaft thrust
clearance (page 16-44).
BACKLASH INSPECTION
FORWARD BEVEL GEAR BACKLASH
Backlash adjustment must be made after adjustment of
each gear shim (page 16-35).
Install the following parts except the water pump.
– Vertical shaft/forward bevel gear (page 16-28)
– Propeller shaft holder (page 16-18)
– Shift rod (page 16-16)
Check that the shift rod [1] in the gear case is in the "N"
(Neutral) position.
• The shift rod is in the "N" (Neutral) position if the
cutout [2] in the shift rod spline is in the cruising
direction [3].
Hold the propeller shaft securely with the 2 jaw puller
(commercially available) [1] as shown, and tighten the
puller to the specified torque.
TOOLS (commercially available):
Puller, 2 jaw
Pins (2 required)
Pressure screw
Jaws
Tip
Yoke
TORQUE: 5 N·m (0.51 kgf·m, 3.7 lbf·ft)
Thickness Trust shim name
A 2.85
B 2.90
C 2.95
D 3.00
E 3.05
F 3.10
CJ-105-11
CJ-105-3
CJ-105-6
CJ-66-15-3
CJ-86-1
GEAR CASE (STANDARD ROTATION)
Unit: mm
Trust shim C
Trust shim D
Trust shim E
Trust shim F
Trust shim G
Trust shim H
[1]
[1]
[2]
[2]
[1]
[3]
[2]
16-41