Subaru Legacy III (2000-2003 year). Manual — part 285

CO(H6DO)-38

COOLING

ENGINE COOLING SYSTEM TROUBLE IN GENERAL

MEMO:

LUBRICATION

LU(H6DO)

Page

1.

General Description . . . . . . . . . . . . . . . . . . . . . 2

2.

Oil Pressure System . . . . . . . . . . . . . . . . . . . . ...7

3.

Engine Oil. . . . . . . . . . . . . . . . . . . . . . . . . 9

4.

Oil Pump . . . . . . . . . . . . . . . . . . . . . . . . ...11

5.

Oil Pump Relief Valve . . . . . . . . . . . . . . . . . . . ...13

6.

Oil Pan and Strainer . . . . . . . . . . . . . . . . . . . . ..14

7.

Oil Pressure Switch. . . . . . . . . . . . . . . . . . . . ...16

8.

Engine Oil Filter. . . . . . . . . . . . . . . . . . . . . . .17

9.

Oil Cooler . . . . . . . . . . . . . . . . . . . . . . . . ..18

10.

Engine Lubrication System Trouble in General. . . . . . . . . . .20

LU(H6DO)-2

LUBRICATION

GENERAL DESCRIPTION

1. General Description

A: SPECIFICATIONS

Lubrication method

Forced lubrication

Oil pump

Pump type

Trochoid type

Number of teeth

Inner rotor

9

Outer rotor

10

Outer rotor diameter

×

thickness

78

×

11 mm (3.07

×

0.43 in)

Tip clearance between inner and outer rotor

Standard

0.04 — 0.14 mm (0.0016 — 0.0055 in)

Limit

0.20 mm (0.0079 in)

Side clearance between inner rotor and
pump case

Standard

0.02 — 0.08 mm (0.0008 — 0.0031 in)

Limit

0.15 mm (0.0059 in)

Case clearance between outer rotor and
pump case

Standard

0.11 — 0.18 mm (0.0043 — 0.0071 in)

Limit

0.25 mm (0.0098 in)

Oil filter

Type

Full-flow filter type

Filtration area

1,300 cm

2

(201.5 sq in)

By-pass valve opening pressure

160 kPa (1.63 kg/cm

2

, 23 psi)

Outer diameter

×

width

80

×

75 mm (3.15

×

2.95 in)

Oil filter to engine thread size

M 20

×

1.5

Relief valve peration pressure

588 kPa (6 kg/cm

2

, 85 psi)

Oil pressure
switch

Type

Immersed contact point type

Working voltage — wattage

12 V — 3.4 W or less

Warning light activation pressure

15 kPa (0.153 kg/cm

2

, 2.18 psi)

Proof pressure

More than 980 kPa (9.993 kg/cm

2

, 142 psi)

Oil capacity (When replacing oil)

5.6 L (5.9 US qt, 4.9 Imp qt)

LU(H6DO)-3

LUBRICATION

GENERAL DESCRIPTION

MEMO: