Checking The Relief Valve; Checking The Oil Pump - Yamaha XV1700PCRC Service Manual

ENGINE OIL PUMP
EAS00363

CHECKING THE OIL PUMP

1. Check:
• oil pump housing 1
• oil pump housing covers 2
Cracks/damage/wear → Replace the defec-
tive part(s).
2. Measure:
• inner-rotor-to-outer-rotor-tip clearance a
• outer-rotor-to-oil-pump-housing
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 ~ 0.12 mm (0 ~ 0.0047 in)
Outer-rotor-to-oil-pump-housing
clearance (feed pump)
0.03 ~ 0.08 mm
(0.0012 ~ 0.0031 in)
Outer-rotor-to-oil-pump-housing
clearance (scavenging pump)
0.06 ~ 0.11 mm
(0.0024 ~ 0.0043 in)
3. Check:
• oil pump operation
Rough movement → Repeat steps (1) and
(2) or replace the defective part(s).
EAS00365

CHECKING THE RELIEF VALVE

1. Check:
• relief valve body 1
• relief valve 2
• spring 3
Damage/wear → Replace the defective
part(s).
5 - 105
ENG
clearance