Nissan Altima L32. Instruction — part 915

LU-6

< PREPARATION >

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PREPARATION

Tool name

Description

Power tool

Loosening bolts and nuts

Deep socket

Removing and installing oil pressure switch
Deep socket 26 mm, 3/8 drive

PBIC0190E

NT818

LUBRICATION SYSTEM

LU-7

< FUNCTION DIAGNOSIS >

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C

D

E

F

G

H

I

J

K

L

M

A

LU

N

P

O

FUNCTION DIAGNOSIS

LUBRICATION SYSTEM

Lubrication Circuit

INFOID:0000000004202495

Schematic

INFOID:0000000004202496

PBIC2270E

AWBIA0035ZZ

LU-8

< FUNCTION DIAGNOSIS >

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LUBRICATION SYSTEM

1.

Oil pan

2.

Oil strainer

3.

Oil pump

4.

Regulator valve

5.

Oil filter

6.

Relief valve (Built in oil filter)

7.

Oil cooler

8.

Bypass

9.

Main gallery

10. Main bearing

11. Timing chain and balancer unit tim-

ing chain oil jet

12. Connecting rod bearing

13. Timing chain and balancer unit tim-

ing chain

14. Connecting rod

15. Piston

16. Balancer unit

17. Chain tensioner

18. Camshaft bracket (No.1)

19. Cylinder head oil gallery

20. Relief valve

21. Intake camshaft bracket (No.2)

22. Intake camshaft oil passage

23. Intake camshaft journal

24. Exhaust camshaft journal

25. Exhaust camshaft oil passage

26. Exhaust camshaft bracket (No.2)

27. Front cover

28. Intake valve timing control cover

29. Intake valve timing controller

30. Intake valve timing control solenoid

valve

A.

Oil passage

B.

Return oil passage

C.

Bypass

D.

To oil pan

ENGINE OIL

LU-9

< ON-VEHICLE MAINTENANCE >

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E

F

G

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LU

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ON-VEHICLE MAINTENANCE

ENGINE OIL

Inspection

INFOID:0000000004202497

OIL LEVEL

• Before starting the engine, check the oil level. If the engine is

already started, stop it and allow 10 minutes before checking.

• Check that the oil level is within the range on the dipstick.

• If it is out of range, add oil as necessary. Refer to

LU-9, "Inspec-

tion"

.

ENGINE OIL APPEARANCE

• Check engine oil for white milky or excessive contamination.

• If engine oil becomes milky, it is highly probable that it is contaminated with engine coolant. Repair or

replace damaged parts.

OIL LEAKAGE

Check for oil leakage around the following areas:

• Oil pan

• Oil pan drain plug

• Oil pressure switch

• Oil filter

• Oil cooler

• IVTC cover

• Front cover

• Mating surface between cylinder block and cylinder head

• Mating surface between cylinder head and rocker cover

• Crankshaft oil seal (front and rear)

OIL PRESSURE CHECK

WARNING:

• Be careful not to burn yourself, as engine oil may be hot.

• For M/T models, put the gearshift lever in the Neutral "N" position. For CVT models, put the selector

lever in the Park “P” position.

1. Check engine oil level. Refer to

LU-9, "Inspection"

.

2. Remove undercover using power tool.
3. Disconnect oil pressure switch harness connector at oil pressure

switch. Remove oil pressure switch and install Tools.

CAUTION:

Do not drop or shock oil pressure switch.

4. Start engine and warm it up to normal operating temperature.
5. Check oil pressure with engine running under no-load, using Tool. Refer to

LU-17, "Oil Pressure"

.

NOTE:

When engine oil temperature is low, engine oil pressure becomes high.

PBIC0249E

Tool numbers : ST25051001 (J-25695-1)

: ST25052000 (J-25695-2)

WBIA0571E