Nissan Frontier. Manual - part 707

AIR CLEANER FILTER

EM-17

< PERIODIC MAINTENANCE >

[QR25DE]

C

D

E

F

G

H

I

J

K

L

M

A

EM

N

P

O

AIR CLEANER FILTER

Removal and Installation

INFOID:0000000009478044

REMOVAL

1. Unfasten clips and lift up air cleaner case (upper).
2. Remove air cleaner filter.

INSTALLATION

Installation is in the reverse order of removal.

LBIA0442E

EM-18

< PERIODIC MAINTENANCE >

[QR25DE]

SPARK PLUG

SPARK PLUG

Exploded View

INFOID:0000000009478045

Removal and Installation

INFOID:0000000009478046

WARNING:

Be sure the engine and ignition switch are off and that the parking brake is engaged securely.

CAUTION:

Be sure to use the correct socket to remove the spark plugs. An incorrect socket can damage the

spark plugs.

REMOVAL

1. Remove the ignition coil. Refer to 

EM-36

.

2. Remove the spark plug using a suitable tool.

CAUTION:

Do not drop or shock it.

INSPECTION AFTER REMOVAL

1.

Ignition coil

2.

Spark plug

3.

Rocker cover

PBIC2995E

PBIC2996E

SPARK PLUG

EM-19

< PERIODIC MAINTENANCE >

[QR25DE]

C

D

E

F

G

H

I

J

K

L

M

A

EM

N

P

O

• Do not use a wire brush for cleaning.

• If the spark plug tip is covered with carbon, spark plug cleaner may be used.

• Checking and adjusting spark plug gap is not required between

change intervals.

INSTALLATION

Installation is in the reverse order of removal.

CAUTION:

Do not drop or shock the spark plug.

* : Always check with the Parts Department for the latest parts information.

SMA773C

Cleaner air pressure

: Less than 588 kPa (6 kg/cm

2

, 85 psi)

Cleaning time

: Less than 20 seconds

SMA806CA

Make

NGK

Standard type*

PLZKAR6A-11

Gap (nominal)

1.1 mm (0.043 in)

EM-20

< PERIODIC MAINTENANCE >

[QR25DE]

CAMSHAFT VALVE CLEARANCE

CAMSHAFT VALVE CLEARANCE

Valve Clearance

INFOID:0000000009478047

INSPECTION

Perform the following inspection after removal, installation or replacement of camshaft or valve-related parts,

or if there are unusual engine conditions due to changes in valve clearance over time (starting, idling or noise). 
1. Remove rocker cover. Refer to 

EM-37, "Removal and Installation"

.

2. Remove engine under cover. Refer to 

EXT-15, "Removal and Installation"

.

3. Remove radiator shroud (lower). Refer to 

CO-16, "Exploded View"

.

4. Measure the valve clearance as follows:
a. Set No. 1 cylinder at TDC of its compression stroke.

• Rotate crankshaft pulley clockwise and align TDC mark to tim-

ing indicator on front cover.

• Make sure that intake and exhaust cam noses of No. 1 cylin-

der are located as shown.

• If not, rotate crankshaft one revolution (360

°) and align as

shown.

b. Use a feeler gauge to measure the clearance between valve

lifter and camshaft. 

Valve clearance:

Unit: mm (in)

1

: Approximately 20

°C (68°F)

2

: Approximately 80

°C (176°F)

PBIC3015E

KBIA0400J

SEM139D

Cold 

1

 (reference data)

Hot 

2

 (reference data)

Intake

0.24 - 0.32 (0.009 - 0.013)

0.304 - 0.416 (0.012 - 0.016)

Exhaust

0.26 - 0.34 (0.010 - 0.013)

0.308 - 0.432 (0.012 - 0.017)