Nissan Altima L32. Instruction — part 195

COOLING FAN

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COOLING FAN

Removal and Installation

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REMOVAL

1. Drain engine coolant from the radiator. Refer to

CO-12, "Changing Engine Coolant"

.

CAUTION:

Perform when engine is cold.

2. Remove air cleaner duct assembly. Refer to

EM-25, "Removal and Installation"

.

3. Disconnect radiator upper hose.
4. Disconnect fan motor connectors.
5. Remove radiator cooling fan assembly.

INSTALLATION

Installation is in the reverse order of removal.

• After installation refill engine coolant and check for leaks. Refer to

CO-12, "Changing Engine Coolant"

and

CO-11, "System Inspection"

.

CAUTION:

Do not spill coolant in engine compartment. Use a shop cloth to absorb coolant.

• Cooling fan is controlled by ECM. For details, refer to

EC-613, "System Description"

.

1.

Fan blade

2.

Fan shroud and motor assembly

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COOLING FAN

Disassembly and Assembly of Cooling Fan

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DISASSEMBLY

1. Remove fan blade nut.
2. Remove fan blade from fan motor.
3. Remove fan motor bolts and remove fan motor from fan shroud.

ASSEMBLY

Assembly is in the reverse order of disassembly.

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1. Fan blade

2. Fan shroud

3. Fan motor

WATER PUMP

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WATER PUMP

Removal and Installation

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WARNING:

Never remove the radiator cap when the engine is hot. Serious burns could occur from high pressure

coolant escaping from the radiator.

CAUTION:

• When removing water pump assembly, be careful not to get coolant on drive belt.

• Water pump cannot be disassembled and should be replaced as a unit.

• After installing water pump, connect hose and clamp securely, then check for leaks using radiator

cap tester.

REMOVAL

1. Drain engine coolant from the radiator. Refer to

CO-12, "Changing Engine Coolant"

.

CAUTION:

Perform when the engine is cold.

2. Remove drive belt. Refer to

EM-16, "Removal and Installation"

.

3. Remove engine cover using power tools.
4. Remove generator. Refer to

CHG-27, "Removal and Installation"

.

5. Remove RH wheel and tire assembly. Refer to

WT-66, "Adjustment"

.

6. Remove fender protector RH. Refer to

EXT-19, "Removal and Installation"

(Coupe models) or

EXT-40,

"Removal and Installation"

(Sedan models).

7. Remove engine ground strap.
8. Remove the water pump.

CAUTION:

• Handle the water pump vane so that it does not contact any other parts.

• Water pump cannot be disassembled and should be replaced as an assembly.

NOTE:

If it is necessary to remove the water pipe, the exhaust manifold and three way catalyst assembly must be

removed. Refer to

EM-30, "Removal and Installation"

.

INSPECTION AFTER REMOVAL

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1.

Water pump

2.

Gaskets

3.

Water pump housing

4.

Water pipe

5.

O-ring

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WATER PUMP

• Visually check that there is no significant dirt or rusting on the

water pump body and vane.

• Check that there is no looseness in the vane shaft, and that it turns

smoothly when rotated by hand.

• If the water pump does not perform properly, replace the water

pump assembly.

INSTALLATION

Installation is in the reverse order of removal.

• When inserting water pipe end to cylinder block, apply a neutral detergent to O-ring. Then insert it immedi-

ately.

INSPECTION AFTER INSTALLATION

• After installation refill engine coolant and check for leaks. Refer to

CO-12, "Changing Engine Coolant"

and

CO-11, "System Inspection"

.

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