Checking The Water Pump; Disassembling The Oil Seal Housing; Assembling The Oil Seal Housing - Yamaha 55DEHD Service Manual

4. Remove the oil seal housing 7 and gas-
ket 8.
7
NOTE:
Insert a flat-head screw driver between the
pry tabs to pry off the oil seal housing 7.

Checking the water pump

1. Check the water pump housing. Replace
the water pump housing if deformed.
2. Check the impeller and insert cartridge.
Replace the impeller and insert cartridge
if cracked or worn.
3. Check the Woodruff key 1. Replace the
woodruff key if worn.
4. Check the groove a on the drive shaft.
Replace the drive shaft if worn.
6885J11
68860020
7
8
68860416
a

Disassembling the oil seal housing

1. Remove the O-ring and oil seals as
shown.

Assembling the oil seal housing

1. Install the new oil seals and new O-ring
onto the oil seal housing to the specified
depth.
a
A A
A A
Needle bearing attachment 1:
90890-06655
Driver rod LS 2:
90890-06606
Installation depth a:
3.5–4.5 mm (0.14–0.18 in)
Lower unit
1
1
2
68860030
3
4
68860040
5
6
7
2
1
8
68860110
9
6-6