Subaru Legacy III (2000-2003 year). Service manual — part 433

ME(H4DOSTC)-96

MECHANICAL

ENGINE NOISE

MEMO:

EXHAUST

EX(H4DOSTC)

Page

1.

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

2.

Front Exhaust Pipe. . . . . . . . . . . . . . . . . . . . . ..5

3.

Center Exhaust Pipe . . . . . . . . . . . . . . . . . . . . ...7

4.

Joint Pipe . . . . . . . . . . . . . . . . . . . . . . . . ..11

5.

Rear Exhaust Pipe . . . . . . . . . . . . . . . . . . . . . 12

6.

Muffler . . . . . . . . . . . . . . . . . . . . . . . . . ...13

7.

Variable Muffler Control Unit . . . . . . . . . . . . . . . . . .14

EX(H4DOSTC)-2

EXHAUST

GENERAL DESCRIPTION

1. General Description

A: COMPONENT

1. FRONT EXHAUST PIPE

(1) Gasket

(6) Gasket

Tightening torque: N·m (kgf-m, ft-lb)

(2) Upper exhaust manifold cover

(RH)

(7) Lower exhaust manifold cover

(LH)

T1:

19 (1.9, 13.7)

T2:

35 (3.6, 26.0)

(3) Exhaust manifold (RH)

(8) Exhaust manifold (LH)

T3:

39 (4.0, 28.9)

(4) Lower exhaust manifold cover

(RH)

(9) Upper exhaust manifold cover

(LH)

(5) Front exhaust pipe

(10) Front oxygen (A/F) sensor

EX-00073

(1)

(3)

(4)

(2)

(5)

(6)

(7)

(8)

(10)

(9)

(1)

T1

T3

T3

T2

T1

T1

T1

T1

T1

T1

(6)

T2

EX(H4DOSTC)-3

EXHAUST

GENERAL DESCRIPTION

2. CENTER AND REAR EXHAUST PIPE, AND MUFFLER

(1) Gasket

(13) Gasket

(25) Bracket (MT vehicles)

(2) Joint pipe (RH)

(14) Rear catalytic converter

(26) Gasket

(3) Gasket

(15) Rear exhaust pipe

(27) Gasket

(4) Gasket

(16) Gasket

(5) Center exhaust pipe (RH)

(17) Cushion

Tightening torque: N·m (kgf-m, ft-lb)

(6) Gasket

(18) Muffler

T1:

4.5 (0.46, 3.3)

(7) Joint pipe (LH)

(19) Control cable (MT vehicles)

T2: 18

(1.8,

13.0)

(8) Hanger bracket (RH)

(20) Plug (AT vehicles)

T3:

23 (2.3, 16.6)

(9) Hanger bracket (LH)

(21) Grommet

T4:

30 (3.0, 21.7)

(10) Center exhaust pipe (LH)

(22) Actuator bracket (MT vehicles)

T5:

35 (3.6, 26.0)

(11) Gasket

(23) Actuator (MT vehicles)

T6: 48

(4.9,

35.4)

(12) Rear oxygen sensor

(24) Controller (MT vehicles)

EX-00074

(17)

(17)

(17)

(24)

(25)

(23)

(21)

(22)

(19)

(16)

(18)

T6

T1

T1

(1)

(2)

(5)

(10)

(14)

(15)

(7)

(27)

(9)

(8)

(13)

(11)

(12)

(3)

(4)

(26)

(6)

T5

T5

T3

T5

T5

T2

T4

T5

T1

(20)

T5

T3