Subaru Legacy III (2000-2003 year). Manual - part 288

LU(H6DO)-12

LUBRICATION

OIL PUMP

C: 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

0.20 mm (0.0079 in)

2. CASE CLEARANCE

Measure the clearance between the outer rotor and
the rear chain cover rotor housing. If the clearance
exceeds the limit, replace the rotor.

Case clearance:

Standard

0.11— 0.18 mm (0.0043 — 0.0071 in)

Limit

0.25 mm (0.0098 in)

3. SIDE CLEARANCE

Measure clearance between oil pump inner rotor
and rear chain cover. If the clearance exceeds the
limit, replace rotors as a set.

Side clearance:

Standard

0.02 — 0.08 mm (0.0008 — 0.0031 in)

Limit

0.15 mm (0.0059 in)

4. OIL PUMP CASE

Check the oil pump case for worn shaft hole,
clogged oil passage, cracks and other faults.

LU-00117

LU-00118

LU-00119

LU(H6DO)-13

LUBRICATION

OIL PUMP RELIEF VALVE

5. Oil Pump Relief Valve

A: REMOVAL

1) Disconnect battery ground cable.

2) Lift-up the vehicle.
3) Remove under cover. <Ref. to EI-13, REMOV-
AL, Front Under Cover.>
4) Drain coolant. <Ref. to CO(H6DO)-22, DRAIN-
ING OF ENGINE COOLANT, REPLACEMENT,
Engine Coolant.>
5) Lower the vehicle.
6) Remove radiator. <Ref. to CO(H6DO)-27, RE-
MOVAL, Radiator.>
7) Remove V-belt. <Ref. to ME(H6DO)-28, RE-
MOVAL, V-belt.>
8) Remove front chain cover. <Ref. to ME(H6DO)-
39, REMOVAL, Front Chain Cover.>
9) Remove timing chain assembly. <Ref. to
ME(H6DO)-41, REMOVAL, Timing Chain Assem-
bly.>
10) Remove oil pump relief valve.

B: INSTALLATION

1) Install oil pump relief valve case and gasket
2) Tighten the bolts in the numerical sequence
shown in the figure.

Tightening torque:

6.4 N·m (0.65 kgf-m, 4.7 ft-lb)

3) Install timing chain assembly. <Ref. to
ME(H6DO)-42, INSTALLATION, Timing Chain As-
sembly.>
4) Install front chain cover. <Ref. to ME(H6DO)-39,
INSTALLATION, Front Chain Cover.>
5) Install V-belt. <Ref. to ME(H6DO)-28, INSTAL-
LATION, V-belt.>
6) Install radiator.<Ref. to CO(H6DO)-28, INSTAL-
LATION, Radiator.>
7) Install under cover. <Ref. to EI-13, INSTALLA-
TION, Front Under Cover.>
8) Fill coolant. <Ref. to CO(H6DO)-22, FILLING OF
ENGINE COOLANT, REPLACEMENT, Engine
Coolant.>

C: INSPECTION

• Check the oil pump relief valve case for worn
shaft hole, clogged oil passage, cracks and other
faults.
• Make sure that there are no foreign materials on
the gasket filter.

IN-00068

LU-00120

Bolt installation position

Bolt dimension

(1) and (5)

6 x 26

(2), (3), (4) and (9)

6 x 35

(6), (7), (8) and (10)

6 x 16

LU-00121

( 1 )

( 2 )

( 3 )

( 4 )

( 5 )

( 6 )

( 7 )

( 8 )

( 9 )

(10)

LU(H6DO)-14

LUBRICATION

OIL PAN AND STRAINER

6. Oil Pan and Strainer

A: REMOVAL

NOTE:
Oil pan upper cannot be removed from the normal
vehicle position. The engine must be separated
from the vehicle prior to removal. <Ref. to
ME(H6DO)-29, REMOVAL, Engine Assembly.>
1) Set the vehicle on lift arms.
2) Lift-up the vehicle.
3) Remove under cover. <Ref. to EI-13, REMOV-
AL, Front Under Cover.>
4) Drain engine oil.
Set container under the vehicle, and remove drain
plug from oil pan.

5) Insert oil pan cutter blade between upper and
lower oil pans.

CAUTION:
Do not use a screwdriver or similar tool in place 
of oil pan cutter.
6) Remove lower oil pan.

7) Remove oil strainer.

B: INSTALLATION

CAUTION:
Before installing oil pan, clean liquid gasket 
from lower oil pan and upper oil pan.
1) Install oil strainer onto upper oil pan.

CAUTION:
Replace O-ring with a new one.

Tightening torque:

6.4 N·m (0.65 kgf-m, 4.7 ft-lb)

2) Apply liquid gasket to mating surfaces and install
oil pan.

Liquid gasket:

THREE BOND 1280B

Liquid gasket application diameter:

5.0

±±±±

1.0 mm (0.197

±±±±

0.039 in)

3) Tighten the lower oil pan mounting bolts in the
numerical sequence shown in the figure.

Tightening torque:

6.4 N·m (0.65 kgf-m, 4.7 ft-lb)

LU-00122

LU-00123

LU-00124

LU-00124

LU-00125

LU-00126

( 1 )

( 2 )

( 3 )

( 4 )

( 5 )

( 6 )

( 7 )

( 8 )

( 9 )

(10)

(11)

(12)

(13)

(14)

(15)

LU(H6DO)-15

LUBRICATION

OIL PAN AND STRAINER

4) Install under cover. <Ref. to EI-13, INSTALLA-
TION, Front Under Cover.>
5) Fill engine oil. <Ref. to LU(H6DO)-9, INSPEC-
TION, Engine Oil.>

C: INSPECTION

By visual check make sure oil pan, oil strainer and
oil strainer stay are not damaged.