Subaru Legacy III (2000-2003 year). Manual - part 274

EX(H6DO)-4

EXHAUST

GENERAL DESCRIPTION

B: CAUTION

• Wear working clothing, including a cap, protec-
tive goggles, and protective shoes during opera-
tion.
• Remove contamination including dirt and corro-
sion before removal, installation or disassembly.
• Keep the disassembled parts in order and pro-
tect them from dust or 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 your hands, 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 safety stands at the specified
points.
• Before disconnecting electrical connectors of
sensors or units, be sure to disconnect ground ca-
ble from battery.

EX(H6DO)-5

EXHAUST

FRONT EXHAUST PIPE

2. Front Exhaust Pipe

A: REMOVAL

1) Remove battery.
2) Remove air cleaner case and air intake duct.
<Ref. to IN(H6DO)-5, REMOVAL, Air Cleaner.>
and <Ref. to IN(H6DO)-7, REMOVAL, Air Intake
Duct.>
3) Disconnect front oxygen (A/F) sensor connector.

4) Lift-up the vehicle.
5) Remove under cover.

6) Disconnect rear oxygen sensor connector.

7) Separate front exhaust pipe assembly from rear
exhaust pipe.

WARNING:
Be careful, exhaust pipe is hot.

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

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

EX-00056

LH side

RH side

LU-00095

EX-00058

EX-00059

EX-00060

RH side

LH side

EX(H6DO)-6

EXHAUST

FRONT EXHAUST PIPE

9) Remove bolt which secures front exhaust pipe
assembly to hanger bracket.

10) Remove front exhaust pipe from the vehicle.

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

B: INSTALLATION

1) Install front exhaust pipe (RH) to front exhaust
pipe assembly.

NOTE:
Replace gaskets with new ones.

Tightening torque:

30 N·m (3.1 kgf-m, 22.4 ft-lb)

2) Install front exhaust pipe assembly to the vehi-
cle.
3) Temporarily tighten bolt which installs front ex-
haust pipe assembly to hanger bracket.

4) Tighten nuts which hold front exhaust pipe onto
cylinder heads.

Tightening torque:

30 N·m (3.1 kgf-m, 22.4 ft-lb)

EX-00061

EX-00062

EX-00062

EX-00061

EX-00060

RH side

LH side

EX(H6DO)-7

EXHAUST

FRONT EXHAUST PIPE

5) Install under cover.
6) Tighten bolts which install front exhaust pipe to
rear exhaust pipe.

Tightening torque:

18 N·m (1.8 kgf-m, 13.0 ft-lb)

7) Tighten bolt which holds front exhaust pipe as-
sembly to hanger bracket.

Tightening torque:

35 N·m (3.6 kgf-m, 26.0 ft-lb)

8) Connect rear oxygen sensor connector.

9) Install under cover.
10) Lower the vehicle.

11) Connect front oxygen (A/F) sensor connectors.

12) Install air cleaner case and air intake duct.
<Ref. to IN(H6DO)-5, INSTALLATION, Air Clean-
er.> and <Ref. to IN(H6DO)-7, INSTALLATION, Air
Intake Duct.>
13) Install battery.

C: INSPECTION

1) Make sure there are no exhaust leaks from con-
nections and welds.
2) Make sure there are no holes or rusting.

EX-00059

EX-00061

EX-00058

EX-00056

LH side

RH side