Yamaha FZ6RC, Service Manual

Page: 241 / 420

OIL PUMP
5-43
EAS24930
REMOVING THE OIL PAN
1. Remove:
●
Oil level switch lead holder
●
Oil level switch “1”
●
Oil pan “2”
●
Oil pan gasket
TIP
Loosen each bolt 1/4 of a turn at a time, in stag-
es and in a crisscross pattern. After all of the
bolts are fully loosened, remove them.
EAS24960
CHECKING THE OIL PUMP
1. Check:
●
Oil pump driven sprocket “1”
●
Oil pump rotor housing “2”
●
Oil pump cover
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 clearance
“b”
●
Outer-rotor-to-oil-pump-cover clearance
3. Check:
●
Oil pump operation
Rough movement
→
Repeat steps (1) and
(2) or replace the defective part(s).
EAS24970
CHECKING THE RELIEF VALVE
1. Check:
●
Relief valve body “1”
●
Relief valve “2”
●
Spring “3”
●
O-ring “4”
Damage/wear
→
Replace the defective
part(s).
2
1
Inner-rotor-to-outer-rotor-tip
clearance
Less than 0.12 mm (0.0047 in)
Limit
0.20 mm (0.0079 in)
Outer-rotor-to-oil-pump-housing
clearance
0.090 – 0.150 mm
(0.0035 – 0.0059 in)
Limit
0.220 mm (0.0087 in)
Oil-pump-housing-to-in-
ner-and-outer-rotor clearance
0.050 – 0.110 mm
(0.0020 – 0.0043 in)
Limit
0.180 mm (0.0071 in)
1. Inner rotor
2. Outer rotor
3. Oil pump housing