Yamaha YZF-R7, Owner'S Service Manual

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ENG
OIL PAN AND OIL PUMP
EB411100
REMOVING THE OIL PAN
1. Remove:
• oil level switch 1
• oil pan 2
• oil pan gasket
• dowel pins
NOTE:
Loosen each bolt 1/4 of a turn at a time,
in stages and in a crisscross pattern.
After all of the bolts are fully loosened,
remove them.
REMOVING THE OIL PUMP
1. Remove:
• oil/water pump assembly driven
sprocket
Flywheel puller
90890-01080
EB411400
CHECKING THE OIL PUMP
1. Check:
• oil/water pump assembly driven
sprocket 1
• oil pump housing 2
Cracks/damage/wear
→
Replace the
defective part(-s).
2. Measure:
• inner rotor-to-outer rotor tip clearance
a
• outer rotor-to-oil pump housing clear-
ance
b
Out of specification
→
Replace the oil
pump.
1 Inner rotor
2 Outer rotor
3 Oil pump housing
Inner rotor-to-outer rotor tip
clearance
0.09 ~ 0.15 mm
(0.004 ~ 0.006 in)
Outer rotor-to-oil pump hous-
ing clearance
0.03 ~ 0.08 mm
(0.001 ~ 0.003 in)