Yamaha XJR1300(L) 99, Service Manual

Page: 166 / 338

4-54
ENG
OIL PUMP
EAS00364
CHECKING THE OIL PUMP
1. Check:
oil pump drive gear 1
oil pump driven gear 2
oil pump housing 3
oil pump housing cover 4
Cracks / damage / wear Replace the de-
fective part(-s).
2. Measure:
inner-rotor to outer-rotor tip clearance
A
outer-rotor to oil-pump-housing clearance
B
oil-pump-housing to inner-rotor and outer-
rotor clearance
C
Outer of specification Replace the oil
pump.
1 Inner rotor
2 Outer rotor
3 Oil pump housing
Inner-rotor to outer-rotor tip
clearance
0.12 0.17 mm <Limit 0.2 mm>
Outer-rotor to oil-pump-housing
clearance
0.03 0.08 mm <Limit 0.15 mm>
Oil-pump-housing to inner-rotor
and outer-rotor clearance
0.03 0.08 mm <Limit 0.15 mm>
3. Check:
oil pump operation
Unsmooth
Repeat steps (1) and (2) or re-
place the defective part(-s).