Nissan Quest E52. Manual - part 585

 

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Nissan Quest E52. Manual - part 585

 

 

CAMSHAFT

EM-89

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• Set a dial indicator vertically to No. 3 journal.
• Turn camshaft to one direction with hands, and measure the cam-

shaft runout on a dial indicator. (Total indicator reading)

- If it exceeds the limit, replace camshaft.

Camshaft Cam Height

• Measure the camshaft cam height with a micrometer.

• If wear exceeds the limit, replace camshaft.

Camshaft Journal Oil Clearance

CAMSHAFT JOURNAL DIAMETER

• Measure the outer diameter of camshaft journal with a micrometer

(A).

CAMSHAFT BRACKET INNER DIAMETER

• Tighten camshaft bracket bolt with the specified torque. Refer to “INSTALLATION” for the tightening proce-

dure.

• Measure inner diameter (A) of camshaft bracket with a bore gauge.

CAMSHAFT JOURNAL OIL CLEARANCE

• (Oil clearance) = (Camshaft bracket inner diameter) – (Camshaft journal diameter).

• If the calculated value exceeds the limit, replace either or both camshaft and cylinder head.

Standard and limit

: Refer to 

EM-129, "Camshaft"

.

PBIC0929E

Standard cam height 

: Refer to 

EM-129, "Cam-

shaft"

.

 (Intake and exhaust)

Cam wear limit

: Refer to 

EM-129, "Cam-

shaft"

.

EMQ0072D

Standard and limit

: Refer to 

EM-129, "Camshaft"

.

JPBIA0122ZZ

Standard

: Refer to 

EM-129, "Camshaft"

.

PBIC1645E

Standard and limit

: Refer to 

EM-129, "Camshaft"

.

EM-90

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CAMSHAFT

NOTE:
Camshaft brackets cannot be replaced as single parts, because there are machined together with cylinder
head. Replace whole cylinder head assembly.

Camshaft End Play

• Install a dial indicator in thrust direction on front end of camshaft.

Measure the end play of a dial indicator when camshaft is moved
forward/backward (in direction to axis).

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

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

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

cylinder head.

Camshaft Sprocket Runout

• Put V-block on precise flat table, and support No. 2 and 4 journals of camshaft.

CAUTION:

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

• Measure the camshaft sprocket runout with a dial indicator. (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-129,

"Camshaft"

.

Valve Lifter Clearance

Standard and limit

: Refer to 

EM-129, "Camshaft"

.

SEM864E

Standard

: 27.500 - 27.548 mm (1.0827 - 1.0846 in)

Standard

: 27.360 - 27.385 mm (1.0772 - 1.0781 in)

KBIA2404J

Limit

: Refer to 

EM-129, "Camshaft"

.

PBIC0930E

KBIA0182E

CAMSHAFT

EM-91

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VALVE LIFTER OUTER DIAMETER

• Measure the outer diameter at 1/2 height of valve lifter with a

micrometer (A) since valve lifter is in barrel shape.

VALVE LIFTER HOLE DIAMETER

• Measure the inner diameter of valve lifter hole of cylinder head with

an inside micrometer.

VALVE LIFTER CLEARANCE

• (Valve lifter clearance) = (Valve lifter hole diameter) – (Valve lifter outer diameter)

• If the calculated value is out of the standard, referring to 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 (INT) Oil Groove

CAUTION:

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

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

EC-171, "Component Inspec-

tion"

.

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

1.

Check engine oil level. Refer to 

LU-8, "Inspection"

.

2.

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

a.

Release the fuel pressure. Refer to 

EC-141, "Work Procedure"

.

b.

Disconnect ignition coil and injector harness connectors. Refer to 

EM-52, "Exploded View"

 and 

EM-47,

"Exploded View"

.

3.

Remove intake valve timing control solenoid valve. Refer to 

EM-66, "Exploded View"

.

Standard

: Refer to 

EM-129, "Camshaft"

.

(Intake and exhaust)

JPBIA0125ZZ

Standard

: Refer to 

EM-129, "Camshaft"

.

(Intake and exhaust)

SEM867E

Standard

: Refer to 

EM-129, "Camshaft"

.

(Intake and exhaust)

EM-92

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CAMSHAFT

4.

Crank engine, and then check that engine oil comes out from
intake valve timing control solenoid valve hole (A). End crank
after checking.

WARNING:

Be careful not to touch rotating parts. (drive belt, and crank-
shaft pulley, etc.)

CAUTION:

• Prevent splashing by using a shop cloth so as to prevent

the worker from injury from engine oil and so as to prevent engine oil contamination.

• Prevent splashing by using a shop cloth so as to prevent engine oil from being splashed to

engine and vehicle. Especially, be careful no to apply engine oil to rubber parts of drive belt,
engine mounting insulator, etc. Wipe engine oil off immediately if it is splashed.

5.

Perform the following inspection if engine oil does not come out from intake valve timing control solenoid
valve oil hole of the cylinder head.
• Remove oil filter, and then clean it. Refer to 

LU-11, "Removal and Installation"

.

• Clean oil groove between oil strainer and intake valve timing control solenoid valve. Refer to 

LU-3,

"Engine Lubrication System Schematic"

.

6.

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-3, "Engine Lubrication System Schematic"

.

7.

After inspection, install removed parts in the reverse order.

Inspection for Leakage

The following are procedures for checking fluids leakage and lubricates leakage.

• 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-10, "Fluids and Lubricants"

.

• 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/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.

• Warm up engine thoroughly to check there is no leakage of fuel, or any oil/fluids including engine oil and

engine coolant.

• Bleed air from lines and hoses of applicable lines, such as in cooling system.
• After cooling down engine, again check oil/fluid levels including engine oil and engine coolant. Refill to the

specified level, if necessary.

Summary of the inspection items:

*: Power steering fluid, brake fluid, etc.

1

: Camshaft sprocket cover (bank 2)

: Engine front

JPBIA1783ZZ

Items

Before starting engine

Engine running

After engine stopped

Engine coolant

Level

Leakage

Level

Engine oil

Level

Leakage

Level

Transmission / 
transaxle fluid

AT & CVT Models

Leakage

Level / Leakage

Leakage

MT Models

Level / Leakage

Leakage

Level / Leakage

Other oils and fluids*

Level

Leakage

Level

Fuel

Leakage

Leakage

Leakage

Exhaust gases

Leakage

 

 

 

 

 

 

 

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