Exhaust Pipe: Service and Repair

FRONT EXHAUST PIPE AND CENTER EXHAUST PIPE


REMOVAL




1) Disconnect front oxygen sensor connector.




2) Disconnect rear oxygen sensor connector. (California 2200 cc model)
3) Lift-up the vehicle.




4) Disconnect rear oxygen sensor connector. (Except California 2200 cc model




5) Separate center exhaust pipe from rear exhaust pipe.




6) Remove bolts which hold front exhaust pipe onto cylinder heads.




7) Remove front exhaust pipe and center exhaust pipe from hanger bracket.


Caution: Be careful not to pull down front exhaust pipe and center exhaust pipe.





8) Separate front exhaust from front catalytic converter.


INSTALLATION


Caution: Replace gaskets with new ones.





1) Install front catalytic converter to front exhaust pipe.
Tightening torque: 30 ± 5 Nm (3.1 ± 0.5 kg-m, 22.4 ± 3.6 ft. lb)




2) Install front exhaust pipe and center exhaust pipe. And temporarily tighten bolt which installs center exhaust pipe to hanger bracket.




3) Tighten bolts which hold front exhaust pipe onto cylinder heads.
Tighten torque: 30 ± 5 Nm (3.1 ± 0.5 kg-m, 22.4 ± 3.6 ft. lb)




4) Install center exhaust pipe to rear exhaust pipe.
Tightening torque: 18 ± 5 Nm (3.6 ± 0.5 kg-m, 26.0 ± 3.6 ft. lb)




5) Tighten bolt which holds center exhaust pipe to hanger bracket.
Tightening torque: 35 ± 5 Nm (3.6 ± 0.5 kg-m, 26.0 ± 3.6 ft. lb)




6) Connect rear oxygen sensor connector. (Except California 2200 cc model)
7) Lower the vehicle




8) Connect rear oxygen sensor connector. (California 2200 cc model)




9) Connect front oxygen sensor connector.



REAR EXHAUST PIPE


REMOVAL





1) Separate rear exhaust pipe from center exhaust pipe.




2) Separate rear exhaust pipe from muffler.


CAUTION: Be careful not to pull down rear exhaust pipe.





3) Remove rear exhaust pipe bracket from rubber cushion.


NOTE: To facilitate removal, apply a coat of SUBARU CRC (Part No.004301003) or equivalent to pipe bracket in advance.


INSTALLATION


CAUTION: Replace gaskets with new ones.





1) Install rear exhaust pipe bracket to rubber cushion.

NOTE: To facilitate installation, apply a coat of SUBARU CRC (Part No.004301003) or equivalent to mating area of rubber cushion in advance.





2) Install rear exhaust pipe to muffler.
Tightening torque: 48 ± 5 Nm (4.9 ± 0.5 kg-m, 35.4 ± 3.6 ft. lb)




3) Install rear exhaust pipe to center exhaust pipe.
Tightening torque: 18 ± 5 Nm (1.8 ± 0.5 kg-m, 13.0 ± 3.6 ft. lb)


MUFFLER


REMOVAL AND INSTALLATION





1) Separate muffler from rear exhaust pipe.




2) Remove left and right rubber cushions.


CAUTION: Be careful not to pull down muffler.


NOTE: To facilitate removal, apply a coat of SUBARU CRC (Part No.004301003) or equivalent to mating area of rubber cushions in advance.




3) Remove front rubber cushion, and detach muffler assembly.


NOTE: To facilitate removal, apply a coat of SUBARU CRC (Part No.004301003) or equivalent to mating area of rubber cushion in advance.





4) Installation is in the reverse order of removal.
Tightening torque: 48 ± 5 Nm (4.9 ± 0.5 kg-m, 35.4 ± 3.6 ft. lb)


CAUTION: Replace gasket with a new one.