Yamaha WR450F, Owner'S Service Manual

Page: 446 / 794

4 - 63
ENG
OIL FILTER, WATER PUMP AND CRANKCASE COVER
(RIGHT)
EC4G5220
Impeller shaft
1. Install:
• Impeller shaft
1
• Plain washer
2
• Impeller
3
NOTE:
• Take care so that the oil seal lip is not dam-
aged or the spring does not slip off its posi-
tion.
• When installing the impeller shaft, apply the
engine oil on the oil seal lip, bearing and
impeller shaft. And install the shaft while
turning it.
• Hold the impeller shaft on its width across
the flats
a
with spanners, etc. and install the
impeller.
T
R
.
.
14 Nm (1.4 m · kg, 10 ft · lb)
Crankcase cover (right)
1. Install:
• Dowel pin
1
• O-ring
2
• Collar
3
• Gasket
4
New
New
2. Install:
• Crankcase cover (right)
1
• Bolt
2
• Bolt
NOTE:
• Apply the engine oil on the impeller shaft
end.
• When installing the crankcase cover onto the
crankcase, be sure that the impeller shaft
end
2
aligns with the balancer end slot
3
.
• Tighten the bolts in stage, using a crisscross
pattern.
T
R
.
.
12 Nm (1.2 m · kg, 8.7 ft · lb)
T
R
.
.
10 Nm (1.0 m · kg, 7.2 ft · lb)