1076A72 HEAT SHIELD FOR RIGHT CATALYTIC PRECONVERTER R R - Alfa - GT - eLearn

125001095 - 1076A72 HEAT SHIELD FOR RIGHT CATALYTIC PRECONVERTER R R

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

	Name	Connector
-	Battery	See A1B BATTERY ( BATTERY NEGATIVE )

1. Loosen the band (1a) and disconnect the oil vapour recirculation pipe (1b) from the corrugated hose.2. Loosen the bands (2a) and remove the corrugated hose (2b), complete with resonator (2c).

1. Disconnect the electrical connection from the throttle body integrated with the D.V.L.

	Name	Connector
1	Throttle body actuator	See N75 THROTTLE BODY ACTUATOR ( CONNECTORS )

2. Open the electrical connections box cover.3. Disconnect the electrical connection for the right Lambda sensor.

	Name	Connector
3	Lambda sensor on pre-catalyzer -2	See K16 LAMBDA SENSOR ON PRE-CATALYZER -2 ( CONNECTORS )

4. Disconnect the rapid connector for the fuel vapour recirculation pipe from the air chamber.5. Loosen the band and disconnect the brake servo vacuum intake pipe from the air chamber.

1. Open the electrical connections box cover.2. Disconnect the engine coupling.3. Disconnect the electrical connections (3a) and (3b) for the rear Lambda sensors and the catalytic converter.

	Name	Connector
3a	Lambda sensor on catalyzer	See K17 LAMBDA SENSOR ON CATALYZER ( CONNECTORS )

	Name	Connector
3b	Lambda sensor on catalyzer 2	See K18 LAMBDA SENSOR ON CATALYZER 2 ( CONNECTORS )

4. Disconnect the electrical connection for the detonation sensor, timing side.

	Name	Connector
4	Detonation sensor 1	See K50 DETONATION SENSOR 1 ( CONNECTORS )

5. Release the electrical wiring for the timing side detonation sensor (5a) and the fuel supply pipe (5b) from the cable duct (5c).

1. Undo the bolts (1a) and remove the electrical connections box (1b).

1. Disconnect the electrical connections (1a) and (1b) from the injection/ignition system control unit.

	Name	Connector
1a	Engine management control unit	See M10A ENGINE MANAGEMENT CONTROL UNIT ( FRONT )

	Name	Connector
1b	Engine management control unit	See M10B ENGINE MANAGEMENT CONTROL UNIT ( CONNECTORS )

2. Undo nut (2a) and disconnect earth lead (2b) from the air chamber.

1. Loosen the bands and disconnect the flexible pipes from the engine coolant reservoir rigid coolant return pipe.2. Undo the bolts (2a) and remove the engine coolant reservoir rigid coolant return pipe (2b).3. Loosen the band and disconnect the oil vapour recovery pipe from the air chamber.4. Loosen the bands fixing the inlet ducts to the air chamber.

1. Undo the bolts (1a) and remove the reinforcement (1b) between the air chamber and bracket on the engine for the reaction link.

1. Undo the bolts (1a) and remove the air chamber (1b) complete with injection/ignition system control unit (1c) and throttle body integrated with D.V.L. (1d).

Proceed with removal Op. 1008C10 POWER UNIT UPPER REACTION LINK R RProceed with removalProceed with removal Op. 7055B54 UNDER-ENGINE GUARD - R RProceed with removal1. Position a hydraulic jack under the power unit gearbox side front support. Op. 1076B82 LEFT EXHASUST PIPE BETWEEN CATALYTIC PRECONVERTER AND CONVERTER R R2. Undo the bolt fixing the power unit gearbox side rigid support to the flexible mounting.Slowly lower the power unit using the hydraulic jack until it is resting on the front suspension crossmember. Op. 1076B84 RIGHT EXHAUST PIPE BETWEEN CARALYTIC PRECONVERTER AND CONVERTER R R

1. Undo the right upper Lambda sensor using a suitable spanner and remove it.

Undo the lower nut fixing the right catalytic preconverter heat shield to the bracket.1. Undo the upper nuts (1a) and remove the right catalytic preconverter heat shield (1b).

Refitting ( Removing

) Place the right catalytic preconverter heat shield back in its housing and secure it using the nuts.1. Place the right upper Lambda sensor back in its housing and tighten it to the recommended torque.

	Fastening	Component	Ø	Value(daNm)
1	-	RIGHT LAMBDA SENSOR	M18	(Right preconverter side) 4.1 ÷ 5.0

1. Place the power unit back in its housing using a hydraulic jack positioned under the gearbox side rigid power unit support.2. Undo the bolt fixing the gearbox side rigid power unit support to the flexible block to the specified torque.

	Fastening	Component	Ø	Value(daNm)
2	-	-	-	-

Remove the hydraulic jack.

Proceed with refitting Op. 1076B84 RIGHT EXHAUST PIPE BETWEEN CARALYTIC PRECONVERTER AND CONVERTER R R.Proceed with refitting Op. 1076B82 LEFT EXHASUST PIPE BETWEEN CATALYTIC PRECONVERTER AND CONVERTER R R.Proceed with refitting Op. 1008C10 POWER UNIT UPPER REACTION LINK R R.Place the air chamber complee with injection/ignition system control unit and throttle casing integrated with D.V.L back in its housing and fasten it using the bolts.Refit in its seating the reinforcement between the air chamber and bracket on the engine for the reaction link and secure it with its bolts.Tighten the bands fixing the inlet ducts to the air chamber.Connect the oil vapour recovery pipe to the air chamber and tighten the band.Place the coolant rigid return pipe to the engine cooling system reservoir back in its housing and fix it using the bolts.Connect the flexible pipe to the coolant return pipe to the engine coolant reservoir and tighten the band.Connect the earth lead to the air chamber and secure it using the bolts.Connect the electrical connections to the fuel injection/ignition control unit.Place the electrical connections box back in its housing and secure it using the bolts.Fasten the electrical wiring for the timing side detonation sensor and the fuel supply pipe to the cable duct.Connect the electrical connection for the detonation sensor, timing side.Connect the electrical connections for the rear Lambda sensors to the catalytic converter.Connect the engine junction.Close the electrical connections box cover.Connect the brake servo vacuum intake pipe to the air chamber and tighten the band.Connect the rapid connector for the fuel vapour recirculation pipe to the air chamber.Connect the electrical connection for the right Lambda sensor.Close the electrical connections box cover.Connect the electrical connection to the throttle body integrated with the D.V.L.Place the corrugated hose, complete with resonator, back in its housing and tighten the bands.Connect the oil vapour recirculation pipe to the corrugated hose and tighten the band.Proceed with refitting Op. 7055B54 UNDER-ENGINE GUARD - R R.Connect the negative (-) battery terminalRemove the car from the ramps.