Workshop Manuals Factory service & repair Alfa Romeo
01 General information02 Specifications03 Manufacturing data and tolerances04 Tightening torques05 Fluids and lubricants06 Maintenance07 Diagnostic checks08 Engine09 Clutch10 Gearbox and differential11 Axles and driveshafts12 Brakes13 Steering14 Suspension and wheels15 Heating, air conditioning and auxiliary units16 Electrical equipment17 Body fittings18 Body panels and frame19 Wiring diagrams and electrical functions20 Wiring harnesses21 Connectors and pin-outs22 Fault diagnosis23 Special tools
Alfa Romeo GT Factory Service Manual (2003-2010)08 · Engine
08 · Engine

Inlet manifold - r + r and replace seal

Make
Alfa Romeo
Model
GT Factory Service Manual
Year
2003–2010
Section
Inlet and exhaust manifolds › Inlet manifold - r + r and replace seal
EngineInlet manifold - r + r and replace seal

INLET MANIFOLD - R + R AND REPLACE SEAL

Operation 1072B10 · INLET MANIFOLDS

2.0 JTS

Removing

Position the vehicle on a lift.

Proceed with the removal

Op. 1016A40 IGNITION COIL COVER ON CYLINDER HEAD- R+R.

Proceed with the removal

Op. 7055B54 UNDER-ENGINE GUARD - R R.

Proceed with the removal

Op. 1076B18 RIGID SECTION OF EXHAUST PIPE BETWEEN CATALYTIC CONVERTER AND SILENCER - R + R.

Proceed with the removal

Op. 1048A59 PIPE from flow meter to throttle casing hose - R.R..

Proceed with the removal

Op. 5530B10 BATTERY - R+R.

Proceed with the removal

Op. 1072D10 MODULAR INLET MANIFOLD - R+R.

Proceed with the removal

1056F60 TUBO COLLETTORE COMBUSTIBILE UNICO, completo di elettroiniettori - S.R.

1. Undo the bolts (1a) and remove the bracket (1b) after having released the band from the electrical wiring.

INLET MANIFOLD - R + R AND REPLACE SEAL

1. Releasae the fuel supply pipe to the high pressure pump (1a) from the fastening (1b) on the intake manifold.

INLET MANIFOLD - R + R AND REPLACE SEAL

1. Release the electrical wiring (1a) from the band (1b) on the intake manifold.

INLET MANIFOLD - R + R AND REPLACE SEAL

1. Undo the nuts (1a) and remove the intake manifold (1b) complete with phase transformer solenoid (1c).

2. Remove the intake manifold gasket.

INLET MANIFOLD - R + R AND REPLACE SEAL

Refitting

1. Place a new intake manifold gasket in position.

2. Place the intake manifold (2a), complete with phase transformer solenoid (2b), back in its housing and secure it tightening the nuts (2c) to the recommended torque.

FasteningComponentØ

Value

(daNm)

2cNutINLET MANIFOLDM8(Cylinder head side) 2.3 - 2.8
INLET MANIFOLD - R + R AND REPLACE SEAL

Fasten the electrical wiring to the band located under the intake manifold.

Fasten the fuel supply pipe to the high pressure pump to the fastening on the intake manifold.

Place the bracket in position and secure it using the bolts, then fasten the electrical wiring to the band.

Proceed with the refitting

1056F60 TUBO COLLETTORE COMBUSTIBILE UNICO, completo di elettroiniettori - S.R.

Proceed with the refitting

Op. 1072D10 MODULAR INLET MANIFOLD - R+R.

Proceed with the refitting

Op. 5530B10 BATTERY - R+R.

Proceed with the refitting

Op. 1048A59 PIPE from flow meter to throttle casing hose - R.R..

Proceed with the refitting

Op. 1076B18 RIGID SECTION OF EXHAUST PIPE BETWEEN CATALYTIC CONVERTER AND SILENCER - R + R.

Proceed with the refitting

Op. 7055B54 UNDER-ENGINE GUARD - R R.

Proceed with the refitting

Op. 1016A40 IGNITION COIL COVER ON CYLINDER HEAD- R+R.

Remove the vehicle from the lift.

1.9 JTD 16V

Removing

Position the vehicle on a lift.

Make sure that the ignition key is in the OFF position, then disconnect the negative battery terminal (-)

DescriptionConnector
BatterySee A1B BATTERY ( BATTERY NEGATIVE )

Proceed with the removal

Op. 1008C10 POWER UNIT UPPER REACTION LINK R R.

Proceed with the removal

Op. 1060G80 DS ELECTRIC INJECTION CONTROL UNIT - R R.

Proceed with the removal

Op. 4450B04 RIGHT FRONT WHEEL R R.

Proceed with the removal

Op. 7055B54 UNDER-ENGINE GUARD - R R.

Proceed with the removal

Op. 7055B91 RIGHT FRONT WHEEL ARCH LINER - R.R..

Proceed with the removal

Op. 1092G10 SINGLE ENGINE BELT R R.

Proceed with the removal

Op. 1092A10 CRANKSHAFT SERVICES PULLEY - R.R..

Proceed with the removal

Op. 1092G20 ENGINE COMPONENT SINGLE BELT FIXED TENSIONER - ONE - R + R.

Proceed with the removal

Op. 1032D12 TIMING SYSTEM PROTECTIVE COVER(S) - R + R.

Proceed with the removal

Op. 1032B10 TOOTHED TIMING BELT - R + R FOR TIMING ADJUSTMENT OR REPLACEMENT.

Proceed with the removal

Op. 5530B10 BATTERY - R+R.

1. Disconnect the electrical connection from the engine coolant temperature sensor.

DescriptionConnector
1Engine temperature sending unitSee K36 ENGINE TEMPERATURE SENDER UNIT ( CONNECTORS )
INLET MANIFOLD - R + R AND REPLACE SEAL

1. Disconnect the electrical connections from the heater plugs.

DescriptionConnector
1Heater plugSee A40 HEATER PLUGS (CYL. 1)

2. Disconnect the electrical connection for the pressure relief sensor.

DescriptionConnector
2Supercharging sensorSee K82 TURBOCHARGING SENSOR
INLET MANIFOLD - R + R AND REPLACE SEAL

1. Disconnect the electrical connection from the turbocharger vane actuator solenoid valve.

DescriptionConnector
1Turbine variable geometry control solenoidSee L36 VARIABLE GEOMETRY TURBINE SOLENOID VALVE ( CONNECTORS )
INLET MANIFOLD - R + R AND REPLACE SEAL

1. Disconnect the electrical connection from the air flow meter.

DescriptionConnector
1Air flow meterSee K41 AIR FLOW METER ( FRONT )
INLET MANIFOLD - R + R AND REPLACE SEAL

1. Disconnect the electrical connection from the EGR system solenoid valve

DescriptionConnector
1EGR solenoid valveSee L30 EGR SOLENOID

Release the wiring from the bands near the thermostat.

2. Loosen the band and disconnect the coolant return pipe from the engine coolant reservoir, thermostat side.

3. Loosen the band and disconnect the coolant outlet pipe from the cylinder head, coolant return pipe to the engine coolant reservoir.

4. Loosen the band and disconnect the flexible pipe from the rigid coolant return pipe to the engine coolant reservoir.

5. Loosen the bolts (5a) and remove the coolant return pipe to the engine coolant reservoir (5b).

INLET MANIFOLD - R + R AND REPLACE SEAL

1. Loosen the band and disconnect the air inlet hose from the connector on the throttle casing.

INLET MANIFOLD - R + R AND REPLACE SEAL

1. Undo the bolts (1a) and remove the connector on the throttle casing (1b) complete with gasket (1c).

INLET MANIFOLD - R + R AND REPLACE SEAL

1. Disconnect the vacuum pipe from the pneumatic valve on the throttle casing.

2. Undo the bolts (2a) and remove the electro-pneumatically operated throttle casing (2b) complete with gasket (2c).

INLET MANIFOLD - R + R AND REPLACE SEAL

Disconnect the vacuum pipe from the three-way connector on the brake servo vacuum intake pipe.

Disconnect the intermediate coupling for the vacuum pipe for the turbocharger vane position actuator control solenoid.

1. Undo the bolts fixing the exhaust gas outlet from the water/exhaust gas heat exchanger for the E.G.R. system, E.G.R. solenoid valve side.

INLET MANIFOLD - R + R AND REPLACE SEAL

1. Undo the nuts (1a) and move the oil vapour recovery pipe mounting bracket (1b) to the side.

2. Undo the fixing bolts (2a) and remove the E.G.R. system solenoid valve (2b).

3. Remove the gasket.

INLET MANIFOLD - R + R AND REPLACE SEAL

1. Disconnect the rapid connector for the fuel return pipe from the fuel filter, fuel return manifold pipe side.

2. Disconnect the rapid connector for the fuel return pipe to the tank, fuel return manifold pipe side.

3. Loosen the band and disconnect the fuel return pipe from the pressure pump, fuel return manifold pipe side.

INLET MANIFOLD - R + R AND REPLACE SEAL

1. Undo the bolts (1a) and remove the fuel return manifold pipe (1b) complete with pipe from the injectors to the fuel recovery manifold (1c).

INLET MANIFOLD - R + R AND REPLACE SEAL

1. Undo the bolt fixing the engine oil dipstick guide pipe to the pressure pump mounting.

2. Disconnect the electrical connection for the fuel pressure regulator.

DescriptionConnector
2Fuel pressure regulatorSee N77 FUEL PRESSURE REGULATOR ( CONNECTORS )

Release the electrical wiring from the band and move it to the side.

INLET MANIFOLD - R + R AND REPLACE SEAL

1. Loosen the band and disconnect the condensed oil recovery pipe from the crankcase sump.

INLET MANIFOLD - R + R AND REPLACE SEAL

1. Loosen the band and disconnect the oil vapour recovery pipe from the separator.

2. Loosen the band and disconnect the oil vapour recirculation pipe from the separator.

INLET MANIFOLD - R + R AND REPLACE SEAL

Disconnect the electrical connection from the solenoid valve on the vacuum reservoir.

DescriptionConnector
Throttle body solenoid valveSee L62 BUTTERFLY CASING SOLENOID VALVE

1. Undo the bolts (1a) and remove the mounting bracket (1b) complete with oil vapour separator (1c) and vacuum reservoir (1d).

INLET MANIFOLD - R + R AND REPLACE SEAL

1. Lock the rotation of the pressure pump drive pulley using two bolts.

2. Undo the pressure pump drive pulley nut.

Undo the two bolts for locking the rotation of the pressure pump drive pulley fitted previously.

INLET MANIFOLD - R + R AND REPLACE SEAL

1. Remove the pressure pump drive pulley (1a) using the tool (1b).

DescriptionCode
1bExtractor1.860.854.001
INLET MANIFOLD - R + R AND REPLACE SEAL

1. Undo the nuts (1a) and remove the pressure pump (1b) from the support.

INLET MANIFOLD - R + R AND REPLACE SEAL

1. Disconnect the electrical connection from the engine oil pressure warning light switch.

DescriptionConnector
1Engine oil pressure sensor (switch)See K30 ENGINE OIL PRESSURE SENSOR SWITCH ( CONNECTORS )

2. Disconnect the electrical connection from the engine oil level sensor.

DescriptionConnector
2Engine oil level sensorSee K32 ENGINE OIL LEVEL SENSOR

3. Disconnect the electrical connection from the engine rpm sensor.

DescriptionConnector
3Rpm sensorSee K46 RPM SENSOR ( CONNECTORS )
INLET MANIFOLD - R + R AND REPLACE SEAL

1. Disconnect the earth lead from the alternator.

DescriptionConnector
1AlternatorSee A10 ALTERNATOR

2. Disconnect the earth lead from the starter motor.

DescriptionConnector
2Starter motorSee A20 STARTER'' MOTOR
INLET MANIFOLD - R + R AND REPLACE SEAL

1. Disconnect the electrical connection from the heater plugs control unit.

DescriptionConnector
1Heater plugs control unitSee M15 PLUG PREHEATING CONTROL UNIT
INLET MANIFOLD - R + R AND REPLACE SEAL

1. Undo the bolts (1a) and remove the power assisted steering pump drive pulley (1b).

INLET MANIFOLD - R + R AND REPLACE SEAL

1. Undo the bolts fixing the power assisted steering pump to the mounting.

INLET MANIFOLD - R + R AND REPLACE SEAL

Remove the guide pipe complete with engine oil dipstick.

1. Undo the bolts (1a) and remove the pressure pump mounting (1b).

INLET MANIFOLD - R + R AND REPLACE SEAL

1. Undo the nuts (1a) and remove the air chamber (1b) complete with gasket (1c).

INLET MANIFOLD - R + R AND REPLACE SEAL

Refitting

1. Refit the air chamber (1a) complete with gasket (1b) back in its housing and secure it tightening the nuts (1c) to the recommended torque.

FasteningComponentØ

Value

(daNm)

1cNutINLET MANIFOLDM8(Cylinder head side) 2.3 - 2.8
INLET MANIFOLD - R + R AND REPLACE SEAL

1. Fit the pressure pump mounting (1a) and secure it using the bolts (1b).

FasteningComponentØ

Value

(daNm)

1bBoltINJECTION PRESSURE PUMP MOUNTM8(Engine crankcase side) 2.3 - 2.8
INLET MANIFOLD - R + R AND REPLACE SEAL

Place the guide pipe complete with engine oil dipstick in position.

1. Position the power assisted steering pump in its housing and secure it tightening the bolts to the recommended torque.

FasteningComponentØ

Value

(daNm)

1BoltPOWER STEERING PUMPM8(Mount side) 2.3 - 2.8
INLET MANIFOLD - R + R AND REPLACE SEAL

1. Position the power assisted steering pump drive pulley (1a) in its housing and secure it tightening the bolts (1b) to the recommended torque.

FasteningComponentØ

Value

(daNm)

1bBoltPOWER STEERING PUMP DRIVE PULLEYM8(Power assisted steering pump side) 2.3 - 2.8
INLET MANIFOLD - R + R AND REPLACE SEAL

Connect the electrical connection to the heater plugs control unit.

Connect the earth lead to the starter motor.

Connect the earth lead to the alternator.

Connect the electrical connection for the engine rpm sensor.

Connect the electrical connection to the engine oil level sensor.

Connect the electrical connection to the engine oil pressure warning light switch.

1. Position the pressure pump (1a) in its housing and secure it by tightening the nuts (1b) to the recommended torque.

FasteningComponentØ

Value

(daNm)

1bNutPRESSURE PUMPM8(Mount side) 2.3 - 2.8
INLET MANIFOLD - R + R AND REPLACE SEAL

1. Place the pressure pump drive pulley back in its housing.

2. Lock the rotation of the pressure pump drive pulley using two bolts.

3. Tighten the nut fixing the pressure pump drive pulley to the recommended torque.

FasteningComponentØ

Value

(daNm)

3NutPRESSURE PUMP CONTROL PULLEYM144.5 ÷ 5.5

Undo the two bolts for locking the rotation of the pressure pump drive pulley fitted previously.

INLET MANIFOLD - R + R AND REPLACE SEAL

Place the mounting bracket in position complete with oil vapour separator and vacuum reservoir and secure it using the bolts.

Connect the electrical connection to the solenoid valve on the vacuum reservoir.

Connect the oil vapour recirculation pipe to the separator and tighten the band.

Connect the oil vapour recovery pipe to the separator and tighten the band.

Connect the condensed oil recovery pipe to the crankcase sump and tighten the band.

Refit the engine wiring and secure it to the band.

Connect the electrical connection to the fuel pressure regulator.

Tighten the bolt fixing the engine oil dipstick guide pipe to the pressure pump mounting.

Place the fuel return manifold pipe in position complete with the pipe from the injectors to the fuel recovery manifold and secure it using the bolts.

Connect the fuel return pipe to the pressure pump, fuel return manifold pipe side and tighten the band.

Connect the rapid connector for the fuel return pipe to the tank, fuel return manifold side.

Connect the rapid connector for the fuel return pipe from the fuel filter, fuel return manifold pipe side.

1. Fit the E.G.R. system solenoid valve (1a) complete with gasket (1b) and secure it tightening the bolts (1c) to the recommended torque.

FasteningComponentØ

Value

(daNm)

1c

2. Place the oil vapour recovery pipe mounting bracket (2a) back in its housing and fasten it using the nuts (2b).

INLET MANIFOLD - R + R AND REPLACE SEAL

1. Tighten the bolts fixing the exhaust gas outlet from the water/exhaust gas heat exchanger for the E.G.R. system, E.G.R. solenoid valve side to the recommended torque.

FasteningComponentØ

Value

(daNm)

1
INLET MANIFOLD - R + R AND REPLACE SEAL

Connect the intermediate coupling for the vacuum pipe for the turbocharger vane position actuator control solenoid.

Connect the vacuum pipe to the three-way connector on the brake servo vacuum intake pipe.

1. Refit the electro-pneumatically operated throttle casing (1a) complete with gasket (1b) back in its housing and secure it tightening the bolts (1c) to the recommended torque.

FasteningComponentØ

Value

(daNm)

1c

2. Connect the vacuum pipe for the pneumatic valve on the throttle casing.

INLET MANIFOLD - R + R AND REPLACE SEAL

1. Refit the conector on the throttle casing (1a) complete with gasket (1b) back in its housing and secure it tightening the bolts (1c) to the recommended torque.

FasteningComponentØ

Value

(daNm)

1c
INLET MANIFOLD - R + R AND REPLACE SEAL

Connect the air inlet hose to the connector on the throttle casing and tighten the band.

Place the coolant return pipe to the engine coolant reservoir in position and secure it using the bolts.

Connect the flexible pipe to the rigid coolant return pipe to the engine coolant reservoir and tighten the band.

Connect the coolant outlet pipe from the cylinderhead, coolant return pipe to the engine coolant reservoir side and tighten the band.

Connect the coolant return pipe to the coolant reservoir, thermostat side, and tighten the band.

Fasten the electrical wiring to the bands near the thermostat.

Connect the electrical connection to the E.G.R. solenoid valve.

Connect the electrical connection to the air flow meter.

Connect the electrical connection to the turbocharger vane actuator solenoid valve.

Connect the electrical connection to the pressure relief sensor.

Connect the electrical connections to the heater plugs.

Connect the electrical connection to the engine coolant temperature sensor.

Proceed with the refitting

Op. 5530B10 BATTERY - R+R.

Proceed with the refitting

Op. 1032B10 TOOTHED TIMING BELT - R + R FOR TIMING ADJUSTMENT OR REPLACEMENT.

Proceed with the refitting

Op. 1032D12 TIMING SYSTEM PROTECTIVE COVER(S) - R + R.

Proceed with the refitting

Op. 1092G20 ENGINE COMPONENT SINGLE BELT FIXED TENSIONER - ONE - R + R.

Proceed with the refitting

Op. 1092A10 CRANKSHAFT SERVICES PULLEY - R.R..

Proceed with the refitting

Op. 1092G10 SINGLE ENGINE BELT R R.

Proceed with the refitting

Op. 7055B91 RIGHT FRONT WHEEL ARCH LINER - R.R..

Proceed with the refitting

Op. 7055B54 UNDER-ENGINE GUARD - R R.

Proceed with the refitting

Op. 4450B04 RIGHT FRONT WHEEL R R.

Proceed with the refitting

Op. 1060G80 DS ELECTRIC INJECTION CONTROL UNIT - R R.

Proceed with the refitting

Op. 1008C10 POWER UNIT UPPER REACTION LINK R R.

Connect the negative battery terminal (-).

Remove the vehicle from the lift.

1.8 T.SPARK

Removing

  • Position the vehicle on a lift.
  • Make sure that the ignition key is in the OFF position, then disconnect the battery terminal (-).
DescriptionConnector
BatterySee A001 Battery
  • Undo the bolts (1a) and remove the bracket (1b) connecting the intake manifold to the bracket on the engine for the reaction rod.
INLET MANIFOLD - R + R AND REPLACE SEAL
  • Undo the nuts (1a) and remove the intake manifold (1b).
  • Remove the gasket.
INLET MANIFOLD - R + R AND REPLACE SEAL

Refitting

  • Place the intake manifold, complete with a new gasket, back in its housing and secure it tightening the nuts to the recommended torque.
FasteningComponentØValue (daNm)
NutINLET MANIFOLDM82.3 - 2.8, daNm

Parts & tools for this job For 2003 Alfa Romeo GT

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