Installing The Oil Seal; Assembling The Crankcase - Yamaha WR450F Owner's Service Manual
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Also See for WR450F:
- Owner's manual (98 pages) ,
- Supplementary owner's service manual (28 pages) ,
- Owner's service manual (795 pages)
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• Oil delivery passages
Obstruction Blow out with compressed
air.
INSTALLING THE OIL SEAL
EAS2GC1315
1. Install:
• Oil seal "1"
New
(to left crankcase)
Installed depth "a"
0.0–0.5 mm (0.00–0.02 in)
1
a
ASSEMBLING THE CRANKCASE
EAS2GC1316
1. Install:
• Bearing cover plate
Bearing cover plate
10 Nm (1.0 m·kgf, 7.2 ft·lbf)
LOCTITE®
Bearing cover plate (crankshaft)
18 Nm (1.8 m·kgf, 13 ft·lbf)
TIP
• Install the bearing by pressing its outer race
parallel.
• To prevent the bearing cover plate screw
(crankshaft) "1" from becoming loose, crimp
the screw head periphery "a" into the concave
"b" using a punch etc. In so doing, take care
not to damage the screwdriver receiving hole
in the screw.
a
b
1
2. Apply:
• Sealant
(to the crankcase mating surface)
1
Yamaha Bond No.1215
90890-85505
(Three Bond No.1215®)
3. Install:
• Dowel pins "1"
• Crankcase "2"
(to the left crankcase)
Crankcase bolt
12 Nm (1.2 m·kgf, 8.7 ft·lbf)
TIP
• Apply the lithium-soap-based grease on the
O-ring.
• Fit the right crankcase onto the left crankcase.
Tap lightly on the case with soft hammer.
• When installing the crankcase, the connecting
rod should be positioned at top dead center
(TDC).
• Tighten the bolts in a crisscross pattern in two
(2) stages, with 1/4 turn each.
4
5
3
4
3
3
3. 45 mm (1.77 in)
4. 60 mm (2.36 in)
5. 75 mm (2.95 in)
6-73
CRANKCASE
1
1
4
3
5
3
2
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