Nissan Frontier. Manual - part 748

TIMING CHAIN

EM-181

< REMOVAL AND INSTALLATION >

[VQ40DE]

C

D

E

F

G

H

I

J

K

L

M

A

EM

N

P

O

e. Remove stopper pins out from timing chain tensioners (second-

ary).

3. Install timing chain (primary) as follows:
a. Install crankshaft sprocket.

• Make sure the mating marks on crankshaft sprocket face the

front of engine.

b. Install the primary timing chain.

• Water pump (G).

• Install primary timing chain so the mating mark punched (B) on

camshaft sprocket is aligned with the blue link (A) on the tim-

ing chain, while the mating mark notched (E) on the crankshaft

sprocket (D) is aligned with the copper link (F) on the timing

chain, as shown.

• When it is difficult to align mating marks (A) with (B) and (E)

with (F) of the primary timing chain with each sprocket, gradu-

ally turn the camshaft to align it with the mating marks.

• During alignment, be careful to prevent dislocation of mating

mark alignments of the secondary timing chains.

PBIC2110E

SEM929E

WBIA0721E

EM-182

< REMOVAL AND INSTALLATION >

[VQ40DE]

TIMING CHAIN

4. Install internal chain guide.

• If removed, reinstall slack guide.

CAUTION:

Do not overtighten slack guide bolts. It is normal for a gap

to exist under the bolt seats when bolts are tightened to

specification.

• Remove stopper pin from primary timing chain tensioner.

5. Make sure again that the mating marks on camshaft sprockets and timing chain have not slipped out of

alignment.

6. Tighten camshaft sprocket bolts to specification with all timing chains installed and Tool holding the crank-

shaft.

7. Install front timing chain case. Refer to 

EM-168, "Removal and Installation"

.

INSPECTION AFTER INSTALLATION

• Before starting engine, check oil/fluid levels including engine coolant and engine oil. If less than required

quantity, fill to the specified level. Refer to 

MA-16, "FOR USA AND CANADA : Fluids and Lubricants"

 (United

States and Canada). Refer to 

MA-18, "FOR MEXICO : Fluids and Lubricants"

 (Mexico).

• Use procedure below to check for fuel leakage.

• Turn ignition switch ON (with engine stopped). With fuel pressure applied to fuel piping, check for fuel leak-

age at connection points.

• Start engine. With engine speed increased, check again for fuel leakage at connection points.

• Run engine to check for unusual noise and vibration.

NOTE:

If hydraulic pressure inside timing chain tensioner drops after removal and installation, slack in the guide

may generate a pounding noise during and just after engine start. However, this is normal. Noise will stop

after hydraulic pressure rises.

PBIC2109E

PBIC2633E

Tool number

: KV11105210 (J-44716)

TIMING CHAIN

EM-183

< REMOVAL AND INSTALLATION >

[VQ40DE]

C

D

E

F

G

H

I

J

K

L

M

A

EM

N

P

O

• Warm up engine thoroughly to make sure there is no leakage of fuel, exhaust gas, or any oils/fluids including

engine oil and engine coolant.

• Bleed air from passages in lines and hoses, such as in cooling system.

• After cooling down engine, again check oil/fluid levels including engine oil and engine coolant. Refill to spec-

ified level, if necessary.

• Summary of the inspection items:

*Power steering fluid, brake fluid, etc.

Item

Before starting engine

Engine running

After engine stopped

Engine coolant

Level

Leakage

Level

Engine oil

Level

Leakage

Level

Transmission/
transaxle fluid 

A/T and CVT Models

Leakage

Level/Leakage

Leakage

M/T Models

Level/Leakage

Leakage

Level/Leakage

Other oils and fluids*

Level

Leakage

Level

Fuel

Leakage

Leakage

Leakage

Exhaust gas

—

Leakage

—

EM-184

< REMOVAL AND INSTALLATION >

[VQ40DE]

TIMING CHAIN TENSIONER

TIMING CHAIN TENSIONER

Exploded View

INFOID:0000000009478130

Removal and Installation (Primary Timing Chain Tensioner)

INFOID:0000000009478131

REMOVAL

NOTE:

When removing components such as hoses, tubes/lines, etc., cap or plug openings to prevent fluid from spill-

ing.
1. Remove engine room cover using power tool. Refer to 

EM-140, "Removal and Installation"

.

2. Remove engine under cover. Refer to 

EXT-15, "Removal and Installation"

.

3. Partially drain engine coolant. Refer to 

CO-40, "Changing Engine Coolant"

.

4. Remove lower fan shroud. Refer to 

CO-44, "Exploded View"

.

5. Disconnect crankcase ventilation hose and remove air duct and resonator assembly. Refer to 

EM-141,

"Removal and Installation"

.

6. Disconnect mass air flow sensor and remove air cleaner case (upper). Refer to 

EM-141, "Removal and

Installation"

.

7. Remove coolant reservoir hose.
8. Disconnect upper radiator hose from radiator.
9. Disconnect and remove engine cooling fan (Motor driven type). Refer to 

CO-48, "Removal and Installation

(Motor driven type)"

.

10. Remove upper fan shroud. Refer to 

CO-44, "Exploded View"

.

AWBIA0859GB

1.

Internal chain guide

2.

O-ring

3.

Timing chain tensioner (secondary) (RH)

4.

Camshaft sprocket (EXH)

5.

Timing chain (secondary)

6.

Timing chain (primary)

7.

Camshaft sprocket RH (INT)

8.

Camshaft sprocket LH (INT)

9.

Slack guide

10. Timing chain tensioner (primary)

11. Crankshaft sprocket

12.

Timing chain tensioner (secondary) (LH)

13. O-ring

14. Tension guide