TOHATSU NB-1000 Service Manual page 179

19. Align the clutch push rod with the clutch cam and slide the
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propeller shaft and housing into the gearcase opening. Push
forward and rotate the propeller shaft as needed until bevel gears have
engaged. Ensure the propeller shaft housing bolts are completely
clean and apply Loctite 242 to the bolt threads. lnstall and torque the
bolts evenly to prevent improper seating of the housing.
20. Move the cam rod to each position and rotate the driveshaft
33
to test gearcase function in all gears. Check the propeller shaft
for looseness in the forward and reverse directions. If looseness
exceeds 0.016 in [0.40 mm], replace bevel gear C washer (26) with one
of correct thickness.
Refer to current Parts Catalog for washer availability
21. Before adding gear oil, pressure test and vacuum test
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the gearcase as follows:
• Remove the oil level plug and install gearcase pressure tester.
• Pump pressure tester until gauge indicates 3 - 6 psi [20 - 39
kPa / 0.2 - 0.4 kg/cm
2
of leakage by submerging gearcase in water. Make necessary
repairs to correct the problem and retest.
• Remove the pressure tester and install gearcase vacuum tester.
1-/ 2-Cylinder
T1400
34
T1743
NOTE
]. lf pressure loss occurs, determine source
GEARCASE
T1402
6-27