1004E10 ENGINE, REMOVED - REMOVE CYLINDER HEAD AND OIL SUMP FOR INSPECTION - INCLUDES POSITIONING ON STAND AND REMOVAL - Alfa - 159 - eLearn

939010400 - 1004E10 ENGINE, REMOVED - REMOVE CYLINDER HEAD AND OIL SUMP FOR INSPECTION - INCLUDES POSITIONING ON STAND AND REMOVAL

1. Adjust the moving tensioner (1a) using a spanner, insert a suitable locking pin and remove the auxiliary drive belt (1b).2. Undo the fixing bolt and remove the moving tensioner (1a) and locking pin.

1. Undo the bolts (1a) and remove the rigid power unit support (1b).

1. Undo the bolts (1a) and remove the upper cover (1b) and the intermediate cover (1c) protecting the timing belt.

1. Disconnect the electrical connection for the air conditioning compressor.

	Description	Connector
1	Air conditioning compressor engagement electro-magnet	See L020 AIR CONDITIONING COMPRESSOR ENGAGEMENT ELECTRO-MAGNET

2. Disconnect the electrical connection for the minimum oil pressure switch.

	Description	Connector
2	Insufficient engine oil pressure sensor	See K030 LOW ENGINE OIL PRESSURE SENSOR (SWITCH)

3. Disconnect the electrical connection for the phase transformer solenoid, exhaust side.

	Description	Connector
3	Exhaust side phase transformer solenoid valve	See N093 PHASE SHIFTER SOLENOID VALVE ON EXHAUST SIDE

- Release the wiring from the retaining cover.

1. Disconnect the electrical connection for the upper Lambda sensor.

	Description	Connector
1	Lambda sensor on catalyzer	See K017 LAMBDA SENSOR ON CATALYZER

2. Disconnect the electrical connection for the exhaust side timing sensor.

	Description	Connector
2	Exhaust side timing sensor	See K107 EXHAUST SIDE TIMING SENSOR

3. Disconnect the electrical connection for the inlet side timing sensor.

	Description	Connector
3	Inlet side timing sensor	See K106 INTAKE SIDE TIMING SENSOR

4. Disconnect the electrical connection for the thermostat temperature regulator.

	Description	Connector
4	Electronic thermostat	See N086 ELECTRONIC THERMOSTAT

5. Disconnect the electrical connection for the air temperature sensor.

	Description	Connector
5	Engine coolant temperature sensor/sender unit	See K036 ENGINE COOLANT TEMPERATURE SENSOR/SENDER UNIT

6. Disconnect the electrical connection from the ignition coil module.

	Description	Connector
6	Ignition module	See A031 IGNITION MODULE

7. Undo the bolt and release the earth lead.

1. Undo the double shank bolt (1a) and the bolt (1b) and remove the starter motor (1c).

1. Disconnect the electrical connection for the engine oil level sensor.

	Description	Connector
1	Engine oil level sensor	See K032 ENGINE OIL LEVEL SENSOR

2. Disconnect the electrical connection for the detonation sensor.

	Description	Connector
2	Detonation sensor	See K050 DETONATION SENSOR

3. Disconnect the electrical connection for the rpm sensor.

	Description	Connector
3	Rpm sensor	See K046 RPM SENSOR

4. Disconnect the electrical connection for the modular intake chamber control actuator.

	Description	Connector
4	Variable geometry solenoid valve	See L015 VARIABLE GEOMETRY SOLENOID VALVE

1. Disconnect the electrical connection for the throttle casing.

	Description	Connector
1	Integrated throttle casing actuator	See N075 THROTTLE BODY ACTUATOR

2. Disconnect the electrical connection of the fuel vapour flow enablement solenoid valve.

	Description	Connector
2	Fuel vapour recovery solenoid valve	See L010 FUEL VAPOUR RECOVERY SOLENOID VALVE

3. Disconnect the electrical connection for the phase transformer solenoid, inlet side.

	Description	Connector
3	Inlet side phase transformer solenoid valve	See N092 PHASE SHIFTER SOLENOID VALVE ON INTAKE SIDE

1. Disconnect the electrical connection for the injectors.

	Description	Connector
1	Injector	See N070 INJECTOR

2. Disconnect the electrical connection for the injection control unit.

	Description	Connector
2	Engine management control unit	See M010 ENGINE MANAGEMENT ECU

- Release the wiring from the various fastenings and remove it.

1. Disconnect the rapid connector for the throttle body coolant supply pipe, thermostat mounting side.

1. Release the clips and remove the corrugated oil vapour supply hose from the tappet cover to the throttle body.2. Loosen the bands and disconnect the throttle body heater water supply and return pipes.3. Undo the bolts and remove the throttle body from the intake chamber.

1. Undo the bolts and remove the injection-ignition control unit from the intake chamber.

1. Undo the bolts and remove the intake chamber complete with injectors.

1. Undo the bolts and remove the engine oil dipstick tube.2. Unscrew the bolts securing the exhaust manifold heat shield and remove it.

1. Undo the fastenings and remove the exhaust manifold-catalytic converter and mounting bracket.- Remove the gasket from the cylinder head.

1. Undo the bolts and remove the rigid rear water pump return pipe, complete with seal.

1. Fit the tool on the crankshaft flange.

Tool	Description	Function	Validity
1860815000	Flange	Crankshaft rotation	1.8

1. Undo the bolt (1a), remove the washer (1b) and the auxiliary drive belt pulley (1c), using the tool fitted previously on the crankshaft for counter-torque.

1. Undo the bolts (1a) and remove the lower protective timing cover (1b).

1. Using a spanner (1a), rotate the moving tensioner (1b) in a clockwise direction until the pin (1d) locking the tensioner can be inserted in the opening (1c).2. Remove the timing belt.

1. Remove the ignition coil cover.2. Undo the bolts (2a) and remove the ignition coil module (2b).

1. Undo the bolts (1a) and remove the tappet cover (1b) complete with gasket.

1. Undo the bolts (1a) and remove the cylinder head assembly (1b).- Remove the gasket.

Unscrew the bolts securing the cylinder head to the cylinder block in the order shown in the figure.

- Rotate the engine through 180 degrees.1. Undo the bolts fixing the oil sump to the engine block.2. Cut the sealant using the tool

Tool	Description	Function	Validity
1870718000	Blade	Cut the crankcase sump sealant

3. Remove the oil sump applying leverage at the edges.