Oil Pump Removal; Oil Pump Inspection - Yamaha Scorpio Service Manual

OIL PUMP

OIL PUMP REMOVAL

NOTE:
Prior to remove the oil pump, remove the
clutch assembly.
1.Remove:
Oil strainer 1
G
Circlip 2
G
Oil pump gear 3
G
Oil pump assembly 4
G
Gasket 5
G
NOTE:
Do not remove the screw, to avoid disassem-
bling oil pump.
T402140

OIL PUMP INSPECTION

1.Measure:
Tip clearance È
G
(between the inner rotor 1 and the outer
rotor 2)
Side clearance É
G
(between the outer rotor 2 and the pump
housing 3)
Out of specification → Replace the oil pump
assembly.
Housing and rotor clearance Ê
G
(between the pump housing 3 and the
rotors 1 2)
Out of specification → Replace the oil pump
assembly.
Tip clearance È:
0.15 mm <Limit: 0.20 mm>
Side clearance É
0.04 ~ 0.09 mm
<Limit: 0.15 mm>
Housing and rotor clearance Ê:
0.03 ~ 0.09 mm
<Limit: 0.15 mm>
4 - 55
ENG