Subaru Legacy (2005 year). Service manual — part 79

EX(H4SO 2.0)-3

EXHAUST

General Description

(1)

Front catalytic converter upper
cover

(11)

Center exhaust pipe lower cover

(23)

Rear exhaust pipe upper cover

(12)

Gasket

(24)

Rear exhaust pipe lower cover

(2)

Front catalytic converter

(13)

Front catalytic converter lower
cover

(3)

Center exhaust pipe

Tightening torque: N

⋅

m (kgf-m, ft-lb)

(4)

Center exhaust pipe upper cover

(14)

Front oxygen (A/F) sensor

T1: 13 (1.3, 9.4)

(5)

Rear catalytic converter upper
cover

(15)

Gasket

T2: 18 (1.8, 13.0)

(16)

Spring

T3: 21 (2.1, 15.2)

(6)

Rear catalytic converter

(17)

Chamber

T4: 30 (3.1, 22.4)

(7)

Rear oxygen sensor

(18)

Rear exhaust pipe

T5: 35 (3.6, 26.0)

(8)

Gasket

(19)

Cushion rubber

T6: 40.8 (4.2, 30.1)

(9)

Front exhaust pipe

(20)

Self-locking nut

T7: 48 (4.9, 35.4)

(10)

Rear catalytic converter lower
cover

(21)

Gasket

(22)

Muffler

EX(H4SO 2.0)-4

EXHAUST

General Description

• 2.5 L model

(14)

(8)

(8)

T3

T1

T2

T5

T1

T4

T4

T1

T1

(13)

(1)

(2)

(5)

(10)

(4)

(11)

(6)

(3)

(9)

(12)

T6

EX-02103

T7

(19)

(20)

(21)

(21)

(23)

(19)

(19)

(19)

(18)

(17)

(16)

(15)

(19)

(22)

T7

(20)

(7)

T3

T1

(24)

(25)

EX(H4SO 2.0)-5

EXHAUST

General Description

B: CAUTION

• Wear work clothing, including a cap, protective
goggles, and protective shoes during operation.
• Remove contamination including dirt and corro-
sion before removal, installation or disassembly.
• Keep the disassembled parts in order and pro-
tect them from dust and dirt.
• Before removal, installation or disassembly, be
sure to clarify the failure. Avoid unnecessary re-
moval, installation, disassembly and replacement.
• Be careful not to burn yourself, because each
part on the vehicle is hot after running.
• Be sure to tighten fasteners including bolts and
nuts to the specified torque.
• Place shop jacks or rigid racks at the specified
points.
• Before disconnecting connectors of sensors or
units, be sure to disconnect the ground cable from
battery.

(1)

Front catalytic converter upper
cover

(11)

Center exhaust pipe lower cover

(23)

Muffler (LH)

(12)

Gasket

(24)

Rear exhaust pipe upper cover

(2)

Front catalytic converter

(13)

Front catalytic converter lower
cover

(25)

Rear exhaust pipe lower cover

(3)

Center exhaust pipe

(4)

Center exhaust pipe upper cover

(14)

Front oxygen (A/F) sensor

Tightening torque: N

⋅

m (kgf-m, ft-lb)

(5)

Rear catalytic converter upper
cover

(15)

Gasket

T1: 13 (1.3, 9.4)

(16)

Spring

T2: 18 (1.8, 13.0)

(6)

Rear catalytic converter

(17)

Chamber

T3: 21 (2.1, 15.2)

(7)

Rear oxygen sensor

(18)

Rear exhaust pipe

T4: 30 (3.1, 22.4)

(8)

Gasket

(19)

Cushion rubber

T5: 35 (3.6, 26.0)

(9)

Front exhaust pipe

(20)

Self-locking nut

T6: 40.8 (4.2, 30.1)

(10)

Rear catalytic converter lower
cover

(21)

Gasket

T7: 48 (4.9, 35.4)

(22)

Muffler (RH)

EX(H4SO 2.0)-6

EXHAUST

Front Exhaust Pipe

2. Front Exhaust Pipe

A: REMOVAL

1) Disconnect the ground cable from battery.

2) Disconnect the front oxygen (A/F) sensor con-
nector.

3) Lift-up the vehicle.
4) Disconnect the rear oxygen sensor connector.

5) Separate the center exhaust pipe from rear ex-
haust pipe.

6) Remove the under cover.

7) Remove the nuts which hold front exhaust pipe
onto cylinder heads.

CAUTION:
Be careful not to pull down the front and center
exhaust pipe assembly.

8) Remove the bolt which holds center exhaust
pipe to hanger bracket.

9) Remove the front and center exhaust pipe as-
sembly from vehicle.

CAUTION:
• Be careful not to let the front and center ex-
haust pipe assembly fall off when removing, as
it is quite heavy.
• After removing the front and center exhaust
pipe assembly, do not apply excessive pulling
force on the rear exhaust pipe.
10) Separate the front exhaust pipe from center ex-
haust pipe.

IN-00203

ME-00859

FU-01116

EX-00214

EX-00215

EX-00216

EX-00217