TOHATSU NB-1000 Service Manual page 171

Disassembly
Gearcase must be secured in a suitable holding
fixture during disassembly.
1. Drain all gearcase oil into a container and inspect the oil for metal
chips.
Small metal fragments may indicate normal wear of
gears, bearings, and shafts. Large metal chips
usually indicate extensive internal damage. Record
your observations
inspecting internal components.
2. Remove the water pump and install a water pump repair kit if
gearcase has been in service for any length of time. See Water Pump,
this section.
3. Remove propeller mounting nut, washers and propeller.
5
4. Remove propeller shaft housing bolts (1).
5. Remove propeller shaft and housing from gearcase. Make
6
sure clutch push rod (3) is also removed. The push rod and
spring may "pop" out with removal. Set the assembly aside.
6. Install socket (4) (Part No. 9.9/15/18: 350-72232-0, 25/
7 8
30: 346-72232-0, 40: 345-72232-0) and wrench (5) (Part
No. 346-72231-0). Hold bevel gear B nut with wrench and turn
driveshaft counterclockwise to loosen the nut. Remove bevel gear B (6)
and nut (7) from gearcase.
1-/ 2-Cylinder
T1367
CAUTION
NOTE
for future reference
T1369
7
when
GEARCASE
T1370
T1371
6-19