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Alfa Romeo 147 Factory Service Manual (2000-2004)08 · Engine
08 · Engine

Catalytic pre-converter - r r

Make
Alfa Romeo
Model
147 Factory Service Manual
Year
2000–2004
Section
Exhaust emission control system › Catalytic pre-converter - r r
EngineCatalytic pre-converter - r r

Catalytic pre-converter - r r

Operation 1080B40 · Exhaust emission control system

1.6 TS · 120 CV

Removing

Position the vehicle on the ramp.

Ensure that the ignition key is in the OFF postition, then disconnect the battery negative terminal.

NameConnector
BatteryA1B

1. Disconnect the electrical connection for the right Lambda sensor and release the wiring from the bands.

NameConnector
1Lambda sensor on left pre-catalyzerK16

2. Disconnect the electrical connection for the left Lambda sensor and release the wiring from the fastenings.

NameConnector
2Lambda sensor on pre-catalyzerK15
Catalytic pre-converter - r r

Proceed with the removal - 1072C44 exhaust manifold heat shield on bulkhead - r+r.

1. Undo the nuts fixing the catalytic pre-converter, manifold side.

2. Undo the bolt fixing the catalytic pre-converter, crankcase mounting bracket side.

3. Undo the nuts fixing the catalytic pre-converter, catalytic converter side.

4. Undo the bolt fixing the catalytic pre-converter flexible mounting, front suspension crossmember side.

5. Remove the catalytic preconverter complete with Lambda sensors.

Remove the gaskets.

Catalytic pre-converter - r r

Refitting

1. Place the catalytic pre-converter, complete with Lambda sensors and gaskets, back in its housing.

2. Tighten the bolt fixing the catalytic pre-converter flexible mounting, front suspension crossmember side.

3. Tighten the nuts fixing the catalytic pre-converter, catalytic converter side, to the recommended torque.

FasteningComponentØ

Value

(daNm)

3NutCATALYTIC PRE-CONVERTERM8(Catalytic converter side) 2.7 ÷ 3.3

4. Tighten the bolt fixing the catalytic pre-converter, crankcase mounting bracket side.

5. Tighten the nuts fixing the catalytic pre-converter, manifold side, to the recommended torque.

FasteningComponentØ

Value

(daNm)

5NutCATALYTIC PRE-CONVERTERM8(Manifold side) 2.7 ÷ 3.3
Catalytic pre-converter - r r

Proceed with the refitting - 1072C44 exhaust manifold heat shield on bulkhead - r+r.

Connect the electrical connections for the Lambda sensors and fix the electrical wiring.

Connect the negative (-) battery terminal.

Remove the car from the ramp.

2.0 TS

Removing

Position the vehicle on the ramp.

Ensure that the ignition key is in the OFF postition, then disconnect the battery negative terminal.

NameConnector
BatteryA1B

Proceed with the removal - 7055B54 under-engine guard - r r.

1. Disconnect the electrical connection for the right Lambda sensor and release the wiring from the bands.

NameConnector
1Lambda sensor on left pre-catalyzerK16

2. Disconnect the electrical connection for the left Lambda sensor and release the wiring from the fastenings.

NameConnector
2Lambda sensor on pre-catalyzerK15
Catalytic pre-converter - r r

Proceed with the removal - 1072C44 exhaust manifold heat shield on bulkhead - r+r.

1. Undo the nuts fixing the catalytic pre-converter, manifold side.

2. Undo the bolt fixing the catalytic pre-converter, crankcase mounting bracket side.

3. Undo the nuts fixing the catalytic pre-converter, catalytic converter side.

4. Undo the bolt fixing the catalytic pre-converter flexible mounting, front suspension crossmember side.

5. Remove the catalytic preconverter complete with Lambda sensors.

Remove the gaskets.

Catalytic pre-converter - r r

Refitting

1. Place the catalytic pre-converter, complete with Lambda sensors and gaskets, back in its housing.

2. Tighten the bolt fixing the catalytic pre-converter flexible mounting, front suspension crossmember side.

3. Tighten the nuts fixing the catalytic pre-converter, catalytic converter side, to the recommended torque.

FasteningComponentØ

Value

(daNm)

3NutCATALYTIC PRE-CONVERTERM8(Catalytic converter side) 2.7 ÷ 3.3

4. Tighten the bolt fixing the catalytic pre-converter, crankcase mounting bracket side.

5. Tighten the nuts fixing the catalytic pre-converter, manifold side, to the recommended torque.

FasteningComponentØ

Value

(daNm)

5NutCATALYTIC PRE-CONVERTERM8(Manifold side) 2.7 ÷ 3.3
Catalytic pre-converter - r r

Proceed with the refitting - 1072C44 exhaust manifold heat shield on bulkhead - r+r.

Connect the electrical connections for the Lambda sensors and fix the electrical wiring.

Proceed with the refitting - 7055B54 under-engine guard - r r.

Connect the negative (-) battery terminal.

Remove the car from the ramp.

1.9 JTD 16V

Removing

Position the vehicle on the ramp

Proceed with removal - 7055B54 under-engine guard - r r.

1. Undo the bolts (1a) and remove the exhaust manifold heat shield (1b).

Catalytic pre-converter - r r

1. Undo the nuts fixing the front section of the exhaust pipe to the catalytic pre-converter.

2. Undo the nuts fixing the front section of the exhaust pipe to the catalytic converter.

3. Remove the front exhaust pipe section complete with seals.

Catalytic pre-converter - r r

1. Undo the bolts (1a) and the nuts (1b) fixing the catalytic preconverter mounting bracket.

Catalytic pre-converter - r r

1. Loosen the collar (1a) and remove the catalytic preconverter (1b).

2. Keep the catalytic preconverter mounting bracket.

Catalytic pre-converter - r r

Refitting

Place the catalytic preconverter complete with mounting back in its housing and fasten it to the turbocharger using the collar.

Tighten the bolts and the nuts fixing the catalytic preconverter mounting bracket.

1. Place the front section of the exhaust pipe with gaskets back in its housing.

2. Tighten the nuts securing the exhaust pipe front section to the catalytic converter to the specified torque.

FasteningComponentØ

Value

(daNm)

2NutPRE-CAT CONVERTOR/CAT CONVERTOR PIPEM8(Catalytic converter side) 2.3 ÷ 2.8

3. Tighten the nuts fixing the front section of the exhaust pipe to the catalytic preconverter to the recommended torque.

FasteningComponentØ

Value

(daNm)

3NutPRE-CAT CONVERTOR/CAT CONVERTOR PIPEM8
Catalytic pre-converter - r r

Place the lower exhaust manifold heat shield back in its housing and fix it using the bolts.

Proceed with refitting - 7055B54 under-engine guard - r r.

Remove the car from the ramps.

Parts & tools for this job For 2000 Alfa Romeo 147

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