Catalytic Converter: Service and Repair

Disconnect plug connector for Lambda oxygen sensor.
Unclip wires in holder.





Unfasten hexagon nuts.

Installation:
Check seal, replace if necessary.
Replace self-locking nuts.
Coat threads with copper paste CRC.





Remove exhaust pipe by unfastening the nuts from the transmission bracket.

Installation:
Wait to mount bracket tension-free until exhaust catalytic converter has been completely installed.





Unfasten flange connection, disconnect exhaust system and remove exhaust catalytic converter.

Installation:
Replace self-locking nuts. Coat threads with copper paste CRC.
The screw heads must be located on the side of the compression spring.





Layout of flange connection

Note: Sealing taper is produced by upset pipe.

Installation:
Lightly coat flange connection with CRC copper paste.
Turn flange until maximum possible ground clearance is provided Align the flanges parallel to each other.
Align the exhaust system and insert the screws.





Caution: Do not apply preload to compression springs on block.

Apply preload of measurement A to the compression springs.
Dimension A, refer to Exhaust System, Specifications. Specifications
Tightening torque, refer to Exhaust System, Specifications.