Installing The Water Pump; Checking The Lower Unit For Air Leakage - Yamaha F150B Service Manual

Installing the water pump

1. Install the dowels a, a new gasket b,
and the outer plate cartridge c.
a
a
2. Install the Woodruff key d.
3. Align the key way a on the impeller e
with the Woodruff key d, and then install
the impeller e.
e
4. Install the washers f, wave washer g,
spacer h, and collar i.
i
h
f
g
f
Drive shaft and lower case (regular rotation model)
c
b
a
d
TIP:
The spacer h and collar i should fit
together firmly.
5. When installing the pump housing and a
new O-ring j, apply grease to the inside
of the insert cartridge, and then turn the
drive shaft clockwise while pushing down
the pump housing
NOTICE: Do not turn the drive shaft
counterclockwise, otherwise the water
pump impeller may be damaged.
6. Install the bolts l.
Checking the lower unit for air
leakage
1. Remove the gear oil check screw a, and
then install the special service tool b.
Leakage tester b: 90890-06840
k.
assembly
l
k
j
a
b
8-22
0
1
2
3
4
5
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8
9
10
A