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Fiat Croma Factory Service Manual (2005-2010)08 · Engine
08 · Engine

Water pump - r + r

Make
Fiat
Model
Croma Factory Service Manual
Year
2005–2010
Section
Engine cooling › Water pump - r + r
EngineWater pump - r + r

WATER PUMP - R + R

Operation 1088C10 · WATER PUMP AND THERMOSTAT

2.2

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

1. Remove the sound insulation cover fastened to the engine by three pins.

WATER PUMP - R + R

1. Disconnect the electrical connection for the front Lambda sensor to the catalytic converter.

DescriptionConnector
1Lambda sensor on catalyzerSee K017 LAMBDA SENSOR ON CATALYZER

2. Disconnect the electrical connection for the rear Lambda sensor to the catalytic converter.

DescriptionConnector
2Lambda sensor on catalyzer - 2See K018 LAMBDA SENSOR ON CATALYZER - 2

3. Undo the fastenings and remove the eletrical connections mounting bracket.

WATER PUMP - R + R

1. Undo the front Lambda sensor from the catalytic converter and remove it.

2. Undo the bolts (2a) and remove the heat shield (2b).

WATER PUMP - R + R

Op. 4450B04 RIGHT FRONT WHEEL - R.R

Op. 7055B66 ENGINE COMPARTMENT DUST COVER IN RIGHT FRONT WHEEL ARCH - R.R.

1. Undo the coolant drain plug in the water pump and drain the coolant.

Collect the coolant in a suitable container.

WATER PUMP - R + R

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

DescriptionConnector
1Engine coolant temperature sensor/sender unitSee K036 ENGINE COOLANT TEMPERATURE SENSOR/SENDER UNIT

2. Loosen the collar and disconnect the upper coolant input sleeve to the radiator, thermostat side.

3. Loosen the bands and disconnect the coolant delivery and return pipes to the climate control system heater, thermostat side.

4. Undo the engine coolant temperature sensor and remove it.

The engine coolant temperature sensor is removed to gain access to one of the thermostat fixing bolts.

5. Undo the bolts (5a) and remove the thermostat (5b) complete with water pump rigid fluid inlet pipe (5c) and O-rings (5d).

WATER PUMP - R + R

1. Loosen the nut fixing the electric wiring mounting bracket.

2. Undo the bolts (2a) and remove the water pump cover (2b), complete with seal.

WATER PUMP - R + R

1. Undo the bolts (1a) and remove the water pump service cover (1b) from the timing chain cover.

2. Remove the gasket.

WATER PUMP - R + R

1. Fit the tool (1a) for securing the water pump drive pulley and fasten with two bolts (1b) to the timing chain cover and with three bolts (1c) to the water pump drive pulley.

ToolDescriptionFunctionValidity
2000001200FlangeSecuring water pump pulley2.2

2. Undo the three bolts fixing the drive pulley to the water pump.

3. Undo the two bolts fixing the water pump to the engine block.

The lower bolt should not be extracted on account of its length.

WATER PUMP - R + R

1. Undo the remaining bolt (1a) and remove the water pump (1b) complete with O-ring.

WATER PUMP - R + R

Refitting

-Clean the surfaces of the water pump.

- Place the water pump, complete with new O-ring in its housing and secure it tightening the bolts to the recommended torque.

Apply (white) silicon grease to the O-ring.

Take care to align the drive gear with the water pump.

ComponentFasteningdiaValue (daNm)Validity
Water pumpBoltM8 X 1.25(engine crankcase side) 2.32.2

- Tighten the bolts fixing the drive pulley to the water pump to the recommended torque.

ComponentFasteningdiaValue (daNm)Validity
Water pump drive pulleyBoltM6 x 1(water pump side) 0.82.2

- Remove the tool used for securing the water pump drive pulley.

ToolDescriptionFunctionValidity
2000001200FlangeSecuring water pump pulley2.2

1. Place the water pump cover (1a), complete with a new seal, back in its housing and secure it tightening the bolts (1b) to the recommended torque.

Apply (white) silicon grease to the seal.

Pay attention to the centering bushes.

ComponentFasteningdiaValue (daNm)Validity
Water pump coverBoltM6 x 1(water pump side) 0.82.2

2. Tighten the nut fixing the electric wiring mounting bracket.

WATER PUMP - R + R

1. Tighten the coolant drain plug to the water pump to the recommended torque.

Apply sealant to the plug before fitting it.

ComponentFasteningdiaValue (daNm)Validity
Drain plug on water pumpM20 x 1.5(water pump side) 2.02.2
WATER PUMP - R + R

1. Place the water pump service cover (1a), complete with a new gasket, back in its housing and secure it tightening the bolts (1b) to the recommended torque.

ComponentFasteningdiaValue (daNm)Validity
Water pump service coverBoltM6 x 1(side) 0.72.2
WATER PUMP - R + R

1. Place the thermostat (1a) complete with water pump rigid coolant inlet pipe (1b) and new O-rings (1c) back in its housing and secure it tightening the bolts (1d) to the recommended torque.

ComponentFasteningdiaValue (daNm)Validity
Thermostat unitBoltM6 x 1(engine crankcase side) 0.6 - 1.02.2

2. Place the engine coolant temperature sensor in its housing and tighten it to the recommended torque.

ComponentFasteningdiaValue (daNm)Validity
Engine coolant temperature sensorM12 x 1.5(thermostat unit side) 2.12.2

3. Connect the coolant delivery and return pipes to the climate control system heater, thermostat side, and tighten the band.

4. Connect the upper coolant input sleeve to the radiator, thermostat side, and tighten the band.

5. Connect the electrical connection to the engine coolant temperature sensor.

WATER PUMP - R + R

Op. 7055B66 ENGINE COMPARTMENT DUST COVER IN RIGHT FRONT WHEEL ARCH - R.R.

Op. 4450B04 RIGHT FRONT WHEEL - R.R

- Place the heat shield back in its housing and secure it using the bolts.

- Position the front Lambda sensor in its housing and tighten it to the recommended torque.

ComponentFasteningdiaValue (daNm)Validity
Front Lambda sensor to catalytic converter- (with special black grease)M18 x 1.5(exhaust manifold with catalytic converter side) 4.02.2

- Place the electrical connections mounting bracket in its housing and secure it.

- Connect the electrical connection for the rear Lambda sensor to the catalytic converter.

- Connect the electrical connection for the front Lambda sensor to the catalytic converter.

- Place the sound insulation cover back in its housing and secure it to the engine using the three pins.

- Connect the negative battery terminal.

Op. 0010T20 ENGINE COOLANT - CHANGE

- Remove the vehicle from the lift.

1.8

Removing

Op. 1048A10 AIR FILTER ASSEMBLY - R.R.

Op. 1088C22 WATER PUMP PULLEY - R.R.

Op. 0010T20 ENGINE COOLANT - CHANGE

1. Undo the bolts (1a) and remove the water pump (1b) complete with gasket.

WATER PUMP - R + R

Refitting

- Refit the water pump, complete with new gasket, in its housing and secure it tightening the bolts to the recommended torque.

ComponentFasteningdiaValue (daNm)Validity
Water pumpBolt0.81.8

Op. 1088C22 WATER PUMP PULLEY - R.R.

Op. 1048A10 AIR FILTER ASSEMBLY - R.R.

Op. 0010T20 ENGINE COOLANT - CHANGE

Parts & tools for this job For 2005 Fiat Croma

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