user manual

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).