1080B38 LEFT CATALYTIC PRECONVERTER R R OR REPLACE CYLINDER HEAD GASKET - Alfa - 147 - eLearn

3024985 - 1080B38 left catalytic preconverter r r or replace cylinder head gasket

) Position the vehicle on the ramp.Make sure that the ignition key is in the OFF position. then disconnect the battery negative (-) terminal.

	Name	Connector
-	Battery	A1B

Release and rmove the engine oil dipstick.Proceed with removal - 7055B54 under-engine guard - r r .Proceed with removal - 1080B92 left upper lambda sensor r r .Proceed with removal - 1076A70 heat shield for left catalytic preconverter r r .1. Undo the bolt (1a) and remove the bracket (1b) joining the exhaust pipes between the preconverters and the catalytic converters.

1. Undo the nuts fixing the exhaust pipes between the preconverters and the catalytic converters, catalytic preconverter side.Remove the gaskets.

1. Undo the nut (1a) and remove the engine oil dipstick tube (1b).

1. Undo the nuts (1a) and remove the left catalytic preconverter (1b).Remove the gasket.

Refitting ( Removing

) 1. Refit the left catalytic preconverter (1a) complete with gasket and secure it by tightening the nuts (1b) to the recommended torque.

	Fastening	Component	Ø	Value(daNm)
1b	Nut	LEFT PRECONVERTER	M8	(Cylinder head side) 2.3 ÷ 2.8

Place the guide pipe for the engine oil dipstick back in its housing and secure it using the nut.Place the engine oil dipstick back in its seating.1. Place the gaskets in their seats, then tighten the nuts fixing the exhaust pipes between the preconverters and the catalytic converters, catalytic preconverter side, to the recommended torque.

	Fastening	Component	Ø	Value(daNm)
1	Nut	RIGHT PRECONVERTER.CONVERTER PIPE/	M8	(Catalyitic preconverter side) 2.3 ÷ 2.8

Place the bracket joining the exhaust pipes between the preconverters and the catalytic converters back in its housing and secure it using the bolt.Proceed with removal - 1076A70 heat shield for left catalytic preconverter r r .Proceed with removal - 1080B92 left upper lambda sensor r r .Proceed with removal - 7055B54 under-engine guard - r r .Connect the negative (-) battery terminal.Remove the car from the ramps.