TOHATSU BFT250A Service Manual page 502

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GEAR CASE (STANDARD ROTATION)
VERTICAL SHAFT RUNOUT
Support each journal with V-blocks as shown.
Set the dial indicator and measure the vertical shaft
runout while turning the shaft.
STANDARD:
LA type
XA type
XXA type
SERVICE LIMIT:
LA type
XA type
XXA type
If the measurement exceeds the service limit, replace
the vertical shaft with a new one.
VERTICAL SHAFT BUSH INSPECTION
(Except LA type)
VERTICAL SHAFT BUSH I.D.
Measure the vertical shaft bush [1] I.D.
STANDARD:
SERVICE LIMIT: 17.65 mm (0.695 in)
If the measurement exceeds the service limit, replace
the vertical shaft bush with a new one.
GEAR CASE STUD BOLT
REPLACEMENT (LA and XA types)
Remove the gear case (page 16-8).
Thread two nuts onto the stud [1] and tighten them
together. Use a wrench to turn the stud bolt (12 x 40
mm) out.
Install a new stud bolt into the extension case and
tighten them to the specified torque.
TORQUE: 22 N·m (2.2 kgf·m, 16 lbf·ft)
After gear case stud bolt installation, check that the
length from the bolt head to the extension case surface
is within specification.
SPECIFIED LENGTH: 40 mm (1.6 in)
16-48
0.30 mm (0.012 in) or below
0.35 mm (0.014 in) or below
0.40 mm (0.016 in) or below
0.30 mm (0.012 in)
0.35 mm (0.014 in)
0.40 mm (0.016 in)
17.02 – 17.13 mm (0.670 – 0.674 in)
125.5 mm
26 mm
(4.9 in)
(1.0 in)
LA type: 560 mm (22.0 in)
XA type: 687 mm (27.0 in)
XXA type: 814 mm (32.0 in)
17.02 – 17.13 mm (0.670 – 0.674 in)
40 mm (1.6 in)
[1]
[1]