Subaru Legacy 2002 Service Manual page 460

E: INSPECTION
1. TIP CLEARANCE
Measure the tip clearance of rotors. If the clear-
ance exceeds the limit, replace rotors as a
matched set.
Tip clearance:
Standard
0.04 — 0.14 mm (0.0016 — 0.0055 in)
Limit
0.18 mm (0.0071 in)
2. CASE CLEARANCE
Measure the clearance between the outer rotor
and the cylinder block rotor housing. If the clear-
ance exceeds the limit, replace the rotor.
Case clearance:
Standard
0.10 — 0.175 mm (0.0039 — 0.0069 in)
Limit
0.20 mm (0.0079 in)
S178070A10
S178070A1001
S2M0736
S178070A1002
S2M0737
OIL PUMP
3. SIDE CLEARANCE
Measure clearance between oil pump inner rotor
and pump cover. If the clearance exceeds the limit,
replace rotor or pump body.
Side clearance:
Standard
0.02 — 0.07 mm (0.0008 — 0.0028 in)
Limit
0.12 mm (0.0047 in)
4. OIL RELIEF VALVE
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
71.8 mm (2.827 in)
Installed length
54.7 mm (2.154 in)
Load when installed
77.08 N (7.86 kgf, 17.33 lb)
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,
wear, etc. and replace if defective.
LU-13
S178070A1003
S178070A1004
S178070A1005
S178070A1006
Lubrication
S2M0738