Subaru 2002 IMPREZA Service Manual page 182

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EMISSION CONTROL (AUX. EMISSION CONTROL DEVICES)

10) Separate the front catalytic converter from front

exhaust pipe.

The rear catalytic converter is integrated with front

catalytic converter. Therefore, the procedure for re-

moving rear catalytic converter is the same as the

description above.

B: INSTALLATION

Replace gaskets with new ones.

1) Install the front catalytic converter to front ex-

Tightening torque:

30 N·m (3.1 kgf-m, 22.4 ft-lb)

2) Install the front and center exhaust pipe assem-

bly to the vehicle. And temporarily tighten the bolt

which installs center exhaust pipe to hanger brack-

FRONT CATALYTIC CONVERTER

3) Tighten the nuts which hold front exhaust pipe

onto cylinder heads.

Tightening torque:

30 N·m (3.1 kgf-m, 22.4 ft-lb)

4) Tighten the bolts which install front and center

exhaust pipe to rear exhaust pipe.

Tightening torque:

18 N·m (1.8 kgf-m, 13.0 ft-lb)

5) Tighten the bolt which holds front and center ex-

haust pipe assembly to hanger bracket.

Tightening torque:

35 N·m (3.6 kgf-m, 26.0 ft-lb)

6) Install the under cover.

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