TOHATSU NB-1000 Service Manual page 184

SECTION 6
10. Mount a magnetic base and dial gauge (obtain locally) as
40
shown. Lift driveshaft upward and tap down on gearcase
with rubber mallet to eliminate all looseness and proceed to adjust
the setup so dial gauge (19) is aligned with V-notch (20).
11. Set dial gauge to zero. Lift driveshaft upward and rotate
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driveshaft in both directions and record the dial gauge
reading.
If the dial gauge reading is not within the specified range,
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adjust shim thickness between bevel gear A (21) and
tapered roIIer bearing (22) in accordance with the Backlash - Shim
Adjustment Table, this section. See Gearcase Repair Procedures in
this section for removal and installation of the bevel gearA roller
bearing.
Model
3.5B
5
8 / 9.8
9.9 / 15 / 18
25 / 30
40
6-32
Acceptable Dial Gauge Reading
in
0.008 - 0.025
0.006 - 0.019
0.0056 - 0.0165
0.0147 - 0.0240
0.0130 - 0.0213
0.0236 - 0.0394
T1746
mm
0.21 - 0.62
0.16 - 0.49
0.14 - 0.42
0.38 - 0.61
0.33 - 0.54
0.60 - 1.00
T1411
T1747
1-/ 2-Cylinder