Nissan Teana J32. Manual - part 797

OIL PUMP

LU-13

< DISASSEMBLY AND ASSEMBLY >

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DISASSEMBLY AND ASSEMBLY

OIL PUMP

Exploded View

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Removal and Installation

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REMOVAL

1.

Remove oil pan (lower and upper) and oil strainer. Refer to 

EM-38, "Exploded View"

.

2.

Remove front timing chain case and timing chain (primary). Refer to 

EM-52, "Exploded View"

.

3.

Remove oil pump assembly.

INSTALLATION

Note the following, and install in the reverse order of removal.
• When installing, align crankshaft flat faces with oil pump inner rotor flat faces.

Disassembly and Assembly

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DISASSEMBLY

1.

Remove oil pump cover.

2.

Remove oil pump inner rotor and oil pump outer rotor from oil pump body.

3.

After removing regulator valve plug, remove regulator valve spring and regulator valve.

ASSEMBLY

Note the following, and assemble in the reverse order of disassembly.

1.

Oil pump body

2.

Oil pump outer rotor

3.

Oil pump inner rotor

4.

Oil pump cover

5.

Regulator valve plug

6.

Regulator valve spring

7.

Regulator valve

Refer to 

GI-4, "Components"

 for symbols in the figure.

JPBIA1681GB

LU-14

< DISASSEMBLY AND ASSEMBLY >

OIL PUMP

• Install oil pump inner rotor with the groove (C) faced to oil pump

cover side (B).

Inspection

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INSPECTION AFTER DISASSEMBLY

Oil Pump Clearance

• Measure the clearance with feeler gauge (C).
- Clearance between oil pump outer rotor and oil pump body. [Posi-

tion (B)]

- Tip clearance between oil pump inner rotor and oil pump outer

rotor. [Position (A)]

• Measure the clearance with feeler gauge and straightedge (A).
- Side clearance between oil pump inner rotor and oil pump body.

[Position (C)]

- Side clearance between oil pump outer rotor and oil pump body.

[Position (B)]

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

OIL PUMP BODY INNER DIAMETER

- Measure the inner diameter of oil pump body with inside microme-

ter. [Position (A)]

OIL PUMP INNER ROTOR OUTER DIAMETER

- Measure the outer diameter of protruded portion of oil pump inner

rotor (1) with micrometer. [Position (B)]

OIL PUMP INNER ROTOR TO OIL PUMP BODY CLEARANCE

- (Clearance) = (Oil pump body inner diameter) – (Oil pump inner rotor outer diameter)

A : Oil pump body side

JPBIA0084ZZ

Standard

: Refer to 

LU-16, "Oil Pump"

.

Standard

: Refer to 

LU-16, "Oil Pump"

.

JPBIA0078ZZ

Standard

: Refer to 

LU-16, "Oil Pump"

.

Standard

: Refer to 

LU-16, "Oil Pump"

.

JPBIA0079ZZ

JPBIA0080ZZ

OIL PUMP

LU-15

< DISASSEMBLY AND ASSEMBLY >

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• If measured/calculated values are out of the standard, replace oil pump assembly.

Regulator Valve Clearance

(Clearance) = (Regulator valve hole diameter) – (Regulator valve
outer diameter)

• If the calculated value is out of the standard, replace oil pump

assembly.

CAUTION:

• Coat regulator valve with engine oil.
• Check that it falls smoothly into valve hole by its own weight.

INSPECTION AFTER INSTALLATION

1.

Check the engine oil level. Refer to 

LU-7, "Inspection"

.

2.

Start the engine, and check that there is no leakage of engine oil.

3.

Stop the engine and wait for 10 minutes.

4.

Check the engine oil level and adjust the level. Refer to 

LU-7, "Inspection"

.

Standard

: Refer to 

LU-16, "Oil Pump"

.

1

: Regulator valve

2

: Oil pump body

Standard

: Refer to 

LU-16, "Regulator Valve"

.

JPBIA0081ZZ

LU-16

< SERVICE DATA AND SPECIFICATIONS (SDS) 

SERVICE DATA AND SPECIFICATIONS (SDS)

SERVICE DATA AND SPECIFICATIONS (SDS)

SERVICE DATA AND SPECIFICATIONS (SDS)

Periodical Maintenance Specification

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ENGINE OIL CAPACITY (APPROXIMATE)

Unit: 

 (lmp qt)

Engine Oil Pressure

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Unit: kPa (bar, kg/cm

2

, psi)

*: Engine oil temperature at 80

°

C (176

°

F)

Oil Pump

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Unit: mm (in)

Regulator Valve

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Unit: mm (in)

Drain and refill 

With oil filter change

4.6 (4)

Without oil filter change

4.3 (3-3/4)

Dry engine (Overhaul)

5.3 (4-5/8)

Engine speed

Approximate discharge pressure* 

Idle speed

More than 98 (0.98, 1.0, 14)

2,000 rpm

More than 294 (2.94, 3.0, 43) 

Clearance between oil pump outer rotor and oil pump body

0.114 - 0.260 (0.0045 - 0.0102)

Tip clearance between oil pump inner rotor and oil pump outer rotor

Below 0.180 (0.0071)

Side clearance between oil pump inner rotor and oil pump body

0.030 - 0.070 (0.0012 - 0.0028)

Side clearance between oil pump outer rotor and oil pump body

0.050 - 0.110 (0.0020 - 0.0043)

Oil pump inner rotor to oil pump body clearance

0.045 - 0.091 (0.0018 - 0.0036)

Regulator valve to oil pump body clearance

0.040 - 0.097 (0.0016 - 0.0038)