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E: INSPECTION
1. TIP CLEARANCE
Measure the tip clearance of rotors. If the clearance
is out of the specification, replace rotors as a
matched set.
Tip clearance:
Specification
0.04 — 0.14 mm (0.0016 — 0.0055 in)
2. CASE CLEARANCE
Measure the clearance between outer rotor and oil
pump rotor housing. If the clearance is out of the
specification, replace the oil pump case.
Case clearance:
Specification
0.10 — 0.175 mm (0.0039 — 0.0069 in)
Oil Pump
3. SIDE CLEARANCE
Measure the clearance between oil pump inner ro-
tor and pump cover. If the clearance exceeds the
specification, replace the rotor or pump body.
Side clearance:
Specification
0.02 — 0.07 mm (0.0008 — 0.0028 in)
4. OIL RELIEF VALVE
LU-00023
Check the valve for fitting condition and damage,
and the relief valve spring for damage and deterio-
ration. Replace the parts if defective.
Relief valve spring:
Free length
73.7 mm (2.902 in)
Installed length
54.7 mm (2.154 in)
Load when installed
93.1 N (9.49 kgf, 20.88 lbf)
5. OIL PUMP CASE
Check the oil pump case for worn shaft hole,
clogged oil passage, worn rotor chamber, cracks
and other faults.
6. OIL SEAL
Check the oil seal lips for deformation, hardening,
LU-00024
wear, etc., and replace if defective.
LU(H4DOTC)-13
LUBRICATION
LU-00025
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