Subaru IMPREZA GD 2007 Series Manual page 426

asieps_tobira_IM_US.book 5 ページ ２０１２年１月１７日 火曜日 午後３時４８分
B: INSTALLATION
1) Install the front oxygen (A/F) sensor and rear ox-
ygen sensor. <Ref. to FU(H4SO)-36, INSTALLA-
TION, Front Oxygen (A/F) Sensor.> <Ref. to
FU(H4SO)-37, INSTALLATION, Rear Oxygen
Sensor.>
2) Install the front exhaust pipe to center exhaust
pipe.
NOTE:
Use a new gasket.
Tightening torque:
40 N·m (4.1 kgf-m, 29.5 ft-lb)
3) Install the front and center exhaust pipe assem-
bly to the vehicle.
NOTE:
Use a new gasket.
4) Temporarily tighten the nuts which hold front ex-
haust pipe to cylinder heads.
5) Tighten the bolt which holds the center exhaust
pipe to exhaust pipe.
Tightening torque:
18 N·m (1.8 kgf-m, 13.0 ft-lb)
Front Exhaust Pipe
6) Tighten the bolts which affix the front and center
exhaust pipe assemblies to the hanger bracket.
Tightening torque:
35 N·m (3.6 kgf-m, 26.0 ft-lb)
7) Tighten the nuts which hold front exhaust pipe to
cylinder heads.
Tightening torque:
30 N·m (3.1 kgf-m, 22.4 ft-lb)
EX-02124
8) Install the under cover.
9) Lower the vehicle.
10) Connect the following connectors.
(1) Front oxygen (A/F) sensor connector
(2) Rear oxygen sensor connector
EX-02122
(A) Front oxygen (A/F) sensor connector
(B) Rear oxygen sensor connector
EX-02121
EX(H4SO)-5
EXHAUST
EX-02123
EX-02122
(A)
(B)
FU-02734