Yamaha RX10LTGTYL Service Manual page 1385

OIL PAN AND OIL PUMP
INSPECTION
1. Inspection:
S Oil pump housing 1
S Oil pump cover 2
Cracks/damage/wear ! Replace the de-
fective part(-s).
2. Measure:
S Inner-rotor-to-outer-rotor-tip clearance a
(between inner rotor 1 and outer rotor 2 )
S Outer-rotor-to-oil-pump-housing clearance
b
(between outer rotor 2 and pump housing
3 )
Out of specifications ! Replace oil pump as-
sembly.
Inner-rotor-to-outer-rotor-tip
clearance:
0.09 X 0.15 mm
(0.004 X 0.006 in)
Outer-rotor-to-oil-pump-housing
clearance:
0.03 X 0.08 mm
(0.001 X 0.003 in)
3. Inspect:
S Check ball seat 1
S Check ball 2
S Spring 3
S Valve 4
Damage/wear ! Replace the defective
part (-s).
4. Inspect:
S Pipe 1
S Oil strainer 2
Damage ! Replace.
Obstruction ! Wash and blow out with com-
pressed air.
Contaminants ! Clean with engine oil.
5-40
ENG