Service manual

4 - 60
ENG
OIL PUMP
EBS00317
CHECKING THE OIL PUMP
1. Check:
• oil pump drive gear
• oil pump driven gear
• oil pump housing
• oil pump housing cover
Cracks/wear/damage
→
Replace.
2. Measure:
• inner-rotor-to-outer-rotor-tip clearance
a
• outer-rotor-to-oil-pump-housing clearance
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
0.07 ~ 0.12 mm
(0.0028 ~ 0.0047 in)
<Limit>: 0.20 mm (0.0079 in)
Outer-rotor-to-oil-pump-housing
clearance
0.09 ~ 0.17 mm
(0.0035 ~ 0.0067 in)
<Limit>: 0.24 mm (0.0094 in)
3. Check:
• oil pump operation
Unsmooth
→
Repeat steps (1) and (2) or
replace the defective parts.