Removing The Oil Pan; Checking The Oil Pump - Yamaha YZF-R1P Service Manual

OIL PAN AND OIL PUMP
EAS00362

REMOVING THE OIL PAN

1. Remove:
• oil level switch 1
• oil pan 2
• 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.
EAS00364

CHECKING THE OIL PUMP

1. Check:
• oil pump driven gear 1
• oil pump housing 2
Cracks/damage/wear → Replace the defec-
tive part(s).
2. Measure:
• inner-rotor-to-outer-rotor-tip clearance È
• outer-rotor-to-oil-pump-housing clearance É
• oil-pump-housing-to-inner-rotor-and-outer-
rotor clearance Ê
Out of specification → Replace the oil pump.
1 Inner rotor
2 Outer rotor
3 Oil pump housing
Inner-rotor-to-outer-rotor-tip
clearance
0.01 ~ 0.10 mm
(0.0004 ~ 0.0039 in)
<Limit: 0.18 mm (0.0071 in)>
Outer-rotor-to-oil-pump-housing
clearance
0.09 ~ 0.15 mm
(0.0035 ~ 0.0059 in)
<Limit: 0.22 mm (0.0087 in)>
Oil-pump-housing-to-inner-rotor-
and-outer-rotor clearance
0.06 ~ 0.11 mm
(0.0024 ~ 0.0043 in)
<Limit: 0.18 mm (0.0071 in)>
5 - 54
ENG