Subaru Legacy 2003 Service Manual page 1801

LUBRICATION
C: DISASSEMBLY
Remove screws which secure oil pump cover and
disassemble oil pump. Inscribe alignment marks on
inner and outer rotors so that they can be replaced
in their original positions during reassembly.
( B )
( A )
(A) Oil seal
(B) Pump case
(C) Inner rotor
(D) Outer rotor
(E) Pump cover
(F) Relief valve
(G) Relief valve spring
(H) Plug
(I) Gasket
D: ASSEMBLY
1) Install front oil seal by using ST.
ST 499587100 OIL SEAL INSTALLER
NOTE:
Use a new oil seal.
( E )
( D )
( C )
( F )
( G )
( I )
( H )
LU-00020
ST
LU-00021
LU(H4DOSTC)-12
OIL PUMP
2) Apply engine oil to inner and outer rotors.
3) Install inner and outer rotors in their original po-
sitions.
4) Install oil relief valve and relief valve spring.
5) Install oil pump cover.
Tightening torque:
T1: 5 N·m (0.5 kgf-m, 3.6 ft-lb)
T2: 44 N·m (4.5 kgf-m, 33 ft-lb)
E: INSPECTION
1. TIP CLEARANCE
Measure the tip clearance of rotors. If the clearance
exceeds the limit, replace rotors as a set.
Tip clearance:
Standard
0.04 — 0.14 mm (0.0016 — 0.0055 in)
Limit
0.18 mm (0.0071 in)
T1
T2
LU-00022
LU-00023