Nissan X-Trail 32. Manual - part 1083

CAMSHAFT

EM-229

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• Tighten camshaft bracket bolts with specified torque. Refer to 

EM-222, "Removal and Installation"

.

• Measure the inner diameter (A) of camshaft bracket with an cylin-

der gauge (B).

CAMSHAFT JOURNAL OIL CLEARANCE
• (Oil clearance) = (Camshaft bracket inner diameter) – (Camshaft journal diameter)

• If out of the standard, replace either or both camshaft and cylinder head.

NOTE:
Camshaft bracket cannot be replaced as a single part, because it is machined together with cylinder head.
Replace whole cylinder head assembly.

Camshaft End Play

1.

Install camshaft in cylinder head. Refer to 

EM-222, "Removal and Installation"

.

2.

Install dial indicator (A) in thrust direction on front end of cam-
shaft. Read the end play of dial indicator when camshaft is
moved forward/backward (in direction to axis).

• Measure the following parts if out of the standard.
- Dimension “A” for camshaft No. 1 journal

- Dimension “B” for cylinder head No. 1 journal

• Refer to the standards above, and then replace camshaft and/

or cylinder head.

Camshaft Sprocket Runout

1.

Put V-block on precise flat table, and support No. 2 and 5 journals of camshaft.

CAUTION:

Never support No. 1 journal (on the side of camshaft sprocket) because it has a different diameter
from the other four locations.

Standard: Refer to 

EM-275, "Camshaft"

.

JSBIA2446ZZ

Standard : Refer to 

EM-275, "Camshaft"

.

Standard : Refer to 

EM-275, "Camshaft"

.

JSBIA2448ZZ

Standard

: 25.800 - 25.848 mm (1.0157 - 1.0176 in)

Standard

: 25.660 - 25.685 mm (1.0102 - 1.0112 in)

KBIA2426J

EM-230

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CAMSHAFT

2.

Measure the camshaft sprocket runout with a dial indicator (A).
(Total indicator reading)

• If it exceeds the limit, replace camshaft sprocket.

Valve Lifter 

Check if surface of valve lifter has any wear or cracks.
• If anything above is found, replace valve lifter. Refer to 

EM-275,

"Camshaft"

.

Valve Lifter Clearance

VALVE LIFTER OUTER DIAMETER
• Measure the outer diameter of valve lifter with a micrometer (A).

VALVE LIFTER HOLE DIAMETER
Measure the diameter of valve lifter hole of cylinder head with an
inside micrometer (A).

VALVE LIFTER CLEARANCE
• (Valve lifter clearance) = (Valve lifter hole diameter) – (Valve lifter

outer diameter)

• If out of the standard, referring to the each standard of valve lifter

outer diameter and valve lifter hole diameter, replace either or both
valve lifter and cylinder head.

INSPECTION AFTER INSTALLATION

Inspection of Camshaft Sprocket Oil Groove.

CAUTION:

• Perform this inspection only when DTC P0011 and DTC P0014 is detected in self-diagnostic results

of CONSULT and it is directed according to inspection procedure of EC section. Refer to 

EC-585,

"Diagnosis Procedure"

 (P0011) ,   (P0014).     

Limit : Refer to 

EM-275, "Camshaft"

.

JPBIA4413ZZ

KBIA0182E

Standard: Refer to 

EM-275, "Camshaft"

.

JPBIA0125ZZ

Standard: Refer to 

EM-275, "Camshaft"

.

Standard: Refer to 

EM-275, "Camshaft"

.

JSBIA2450ZZ

CAMSHAFT

EM-231

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• Check when the engine is cold so as to prevent burns from any splashing engine oil. 

1.

Check the engine oil level. Refer to 

LU-25, "Inspection"

.

2.

Perform the following procedure so as to prevent the engine from being unintentionally started while
checking.

a.

Release fuel pressure. Refer to 

EC-558, "Work Procedure"

.

b.

Disconnect ignition coil and injector harness connectors.

3.

Remove intake valve timing control solenoid valve. Refer to 

EM-210, "Exploded View"

. 

4.

Crank the engine, and then check that engine oil comes out
from intake valve timing control cover oil hole 

. End crank after

checking.

WARNING:

Be careful not to touch rotating parts (drive belt, idler pul-
ley, and crankshaft pulley, etc.).

CAUTION:

Engine oil may squirt from intake valve timing control sole-
noid valve installation hole during cranking. Use a shop
cloth to prevent the engine components and the vehicle. Do
not allow engine oil to get on rubber components such as
drive belt or engine mount insulators. Immediately wipe off
any splashed engine oil. 

• Clean oil groove between oil strainer and intake valve timing control solenoid valve if engine oil does not

come out from intake valve timing control cover oil hole. Refer to 

LU-23, "Engine Lubrication System"

. 

5.

Remove components between intake valve timing control solenoid valve and camshaft sprocket (INT),
and then check each oil groove for clogging.
• Clean oil groove if necessary. Refer to 

LU-23, "Engine Lubrication System"

. 

6.

After inspection, install removed parts. 

ALBIA0909GB

EM-232

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CYLINDER HEAD

CYLINDER HEAD

Exploded View

INFOID:0000000010783815

REMOVAL

DISASSEMBLY

Cylinder head assembly

Cylinder head gasket

Cylinder head bolt

:Comply with the assembly procedure 
when tightening. Refer to 

EM-233

 : N·m (kg-m, ft-lb)

 : Always replace after every disassembly.

 : Should be lubricated with oil.

JSBIA3388ZZ