Infiniti QX56 (Z62). Manual - part 917

 

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Infiniti QX56 (Z62). Manual - part 917

 

 

LU-12

< REMOVAL AND INSTALLATION >

OIL COOLER

CAUTION:

Perform this step when engine is cold.

4.

Remove oil filter. Refer to 

LU-9, "Removal and Installation"

.

5.

Remove connector bolt, and remove oil cooler.

INSTALLATION

Installation is in the reverse order of removal, paying attention to the following:
• Confirm that no foreign objects are adhering to the sealing surfaces of the oil cooler and oil pan. 

Inspection

INFOID:0000000006289623

INSPECTION AFTER REMOVAL

Oil Cooler

Check oil cooler for cracks. Check oil cooler for clogging by blowing compressed air through engine coolant
inlet. If necessary, replace oil cooler assembly. 

Relief Valve

Inspect relief valve for movement, cracks and breaks by pushing the ball. If replacement is necessary, remove
the valve by prying it out using a suitable tool. Install a new valve in place by tapping it in.

INSPECTION AFTER INSTALLATION

1.

Check engine oil and engine coolant levels and add engine oil and engine coolant. Refer to 

LU-7, "Inspec-

tion"

 and 

CO-8, "Inspection"

.

2.

Start the engine, and check for leaks of engine oil or engine coolant.

3.

Stop the engine and wait for 10 minutes.

4.

Check the engine oil level and engine coolant level again. Refer to 

LU-7, "Inspection"

 and 

CO-8, "Inspec-

tion"

OIL PUMP

LU-13

< REMOVAL AND INSTALLATION >

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OIL PUMP

Exploded View

INFOID:0000000006289624

Removal and Installation

INFOID:0000000006289625

REMOVAL

NOTE:
Do not remove the engine assembly to perform this procedure.

1.

Disconnect battery cable from negative terminal. Refer to 

PG-165, "Exploded View"

.

2.

Drain engine oil. Refer to 

LU-8, "Draining"

.

3.

Drain engine coolant from radiator. Refer to 

CO-8, "Draining"

.

CAUTION:

• Perform this step when engine is cold.
• Never spill engine coolant on drive belts.

4.

Remove the following components and related parts:
• Air cleaner case assembly and air duct. Refer to 

EM-27, "Exploded View"

.

• Drive belt auto tensioner and idler pulley. Refer to 

EM-26, "Exploded View"

.

• Fan shroud. Refer to 

CO-13, "Exploded View"

.

• Cooling fan, fan coupling and fan bracket. Refer to 

CO-16, "Exploded View"

.

• Front under cover. Refer to 

EXT-25, "Exploded View"

.

• Protector A and B. Refer to 

SCS-32, "FRONT TUBE ASSEMBLY : Exploded View"

.

• Front suspension rear cross member. Refer to 

TM-205, "2WD : Exploded View"

 (2WD models) or 

TM-

208, "4WD : Exploded View"

 (4WD models).

• Steering gear assembly. Refer to 

ST-41, "Exploded View"

.

• Front final drive assembly. Refer to 

DLN-162, "Exploded View"

.

• Power steering oil pump. Refer to 

ST-48, "Exploded View"

.

• Alternator, alternator bracket and alternator stay. Refer to 

CHG-25, "Exploded View"

.

• Oil pan (lower) and oil strainer. Refer to 

EM-54, "Exploded View"

.

• Oil pan (upper). Refer to 

EM-57, "Exploded View"

.

• Electric throttle control actuator. Refer to 

EM-30, "Exploded View"

.

• Radiator hoses. Refer to 

CO-13, "Exploded View"

.

• Water suction hose and water suction pipe. Refer to 

CO-20, "Exploded View"

.

• Water pump pulley. Refer to 

CO-18, "Exploded View"

.

• Rocker cover. Refer to 

EM-33, "Exploded View"

.

WBIA0415E

1.

Oil pump body

2.

Outer rotor

3.

Inner rotor

4.

Oil pump cover

5.

Oil pump drive spacer

6.

Regulator valve

7.

Regulator spring

8.

Regulator plug

LU-14

< REMOVAL AND INSTALLATION >

OIL PUMP

5.

Remove the oil pump drive spacer.
• Hold and remove the flat space of the oil pump drive spacer by

pulling it forward. 

6.

Remove the oil pump. Refer to 

LU-13, "Exploded View"

.

INSTALLATION

1.

Install the oil pump. 

2.

Install the oil pump drive spacer as follows:
• When inserting the oil pump drive spacer, align the crankshaft

key and the flat face of the inner rotor.

• If they are not aligned, rotate the oil pump inner rotor by hand.
• Make sure that each part is aligned and tap lightly until it

reaches the end.

3.

Installation of the remaining components is in the reverse order of removal.

Disassembly and Assembly

INFOID:0000000006289626

DISASSEMBLY

1.

Remove oil pump cover.

2.

Remove inner rotor and outer rotor from oil pump body. 

3.

Remove the regulator valve plug, regulator valve spring and regulator valve.

ASSEMBLY

Installation is in the reverse order of removal.
NOTE:
Install the oil pump inner rotor and outer rotor with the punched
marks on the oil pump cover side.

Inspection

INFOID:0000000006289627

INSPECTION AFTER DISASSEMBLY 

Clearance of Oil Pump Parts

KBIA2512E

KBIA2490E

PBIC0144E

OIL PUMP

LU-15

< REMOVAL AND INSTALLATION >

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• Measure radial clearance using a suitable tool.

• Measure side clearance using suitable tools.

• Calculate the clearance between inner rotor and oil pump body as

follows.

1.

Measure the outer diameter of protruded portion of inner rotor
(position 5) using suitable tool.

2.

Measure the inner diameter of oil pump body to brazed portion
(position 6) using suitable tool.

3.

Calculate the clearance using the following formula.
• (Clearance) = (Inner diameter of oil pump body) - (Outer diameter of inner rotor)

Regulator Valve Clearance

Check regulator valve to oil pump cover clearance using the following formula.

Body to outer rotor 
(position 1)

: Refer to 

LU-17, "Oil Pump"

.

Inner rotor to outer 
rotor tip (position 2)

: Refer to 

LU-17, "Oil Pump"

.

PBIC0139E

Body to inner rotor 
(position 3)

: Refer to 

LU-17, "Oil Pump"

.

Body to outer rotor 
(position 4)

: Refer to 

LU-17, "Oil Pump"

.

PBIC0140E

PBIC0141E

PBIC0142E

Inner rotor to brazed portion of housing clearance

: Refer to 

LU-17, "Oil Pump"

.

 

 

 

 

 

 

 

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