Nissan Frontier D22. Manual - part 783

LU-6

[KA24DE]

LUBRICATION SYSTEM

10. Idler sprocket

11.

Upper timing chain tensioner

12. Exhaust camshaft

13. Intake camshaft

ENGINE OIL

LU-7

[KA24DE]

C

D

E

F

G

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M

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LU

ENGINE OIL

PFP:KLA92

Oil Pressure Check

EBS00GUH

WARNING:

●

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

●

For M/T models, put shift lever in Neutral “N” position. For A/T models, put selector lever in Park
“P” position.

1.

Check oil level.

2.

Remove oil pressure switch.

3.

Install pressure gauge.

4.

Start engine and warm it up to normal operating temperature.

5.

Check oil pressure with engine running under no-load at idle
speed and at 3,000 rpm.
Engine oil pressure [oil temperature at 80

°C (148°F)]

●

If difference is extreme, check oil passage and oil pump
for oil leaks.

6.

Install oil pressure switch with thread sealant. Refer to 

GI-42,

"RECOMMENDED CHEMICAL PRODUCTS AND SEALANTS"

.

Engine speed rpm

Approximate discharge pressure

kPa (kg/cm

2

 , psi)

Idle speed

More than 78 (0.8, 11)

3,000

412 - 481 (4.2 - 4.9, 60 - 70)

Oil pressure 
switch

: 12.25 – 17.15 N·m (1.3 – 1.7 kg-m, 
9 – 12 ft-lb)

ALC059

LU-8

[KA24DE]

OIL PUMP

OIL PUMP

PFP:15010

Removal and Installation

EBS00GUI

1.

Remove oil pump mounting bolts, then withdraw oil pump from engine. 

●

When removing oil pump, turn crankshaft so that No. 1 piston is at TDC on its compression
stroke.

CAUTION:

Be carful not to damage drive spindle when withdrawing oil pump from engine.

2.

Installation is in the reverse order of removal.

●

Always replace with new oil seal and gasket.

●

When installing oil pump, apply engine oil to gears, then
align punch mark on drive spindle and oil hole on oil
pump.

WBIA0237E

ALC054

OIL PUMP

LU-9

[KA24DE]

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Regulator Valve

EBS00GUJ

1.

Visually inspect components for wear and damage.

2.

Check oil pressure regulator valve sliding surface and spring.

3.

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

4.

Replace regulator valve set or oil pump assembly, if damaged.

Oil Filter

EBS00GUK

The oil filter is a small, full-flow cartridge type and is provided with a
relief valve.

●

When changing oil filter, refer to 

MA-21, "Changing Oil Fil-

ter"

 .

Oil Pump Inspection

EBS00GUL

Using a feeler gauge, check the following clearances after the pump is disassembled.

Standard clearance:

Unit: mm (in)

●

If the inner rotor tip clearance (1) exceeds the limit, replace
rotor set.

●

If pump body to outer rotor clearance and side clearance (2)
or (3) exceed the specification, replace oil pump assembly.

ALC058

ALC125

Inner rotor tip clearance (1)

less than 0.12 (0.0047)

Outer rotor to pump body clearance (2)

0.15 - 0.21 (0.0059 - 0.0083)

Side clearance (with gasket) (3)

0.04 - 0.100 (0.0016 - 0.0039)

SLC026

SLC732