Qashqai J11. Engine mechanical (HRA2DDT, K9K, MR20DD)

PREPARATION

EM-129

< PREPARATION >

[MR20DD]

PREPARATION

Special Service Tools

INFOID:0000000010715449

Tool number
Tool name

Description

KV10111100
Seal cutter

Removing oil pan (upper and lower) etc.

KV10116200
Valve spring compressor
1. KV10115900
Attachment
2. KV10109220
Adapter

Disassembling and assembling valve mecha-
nism

Part

is a component of KV10116200, but

Part

is not so.

KV10112100
Angle wrench

Tightening bolts for main bearing cap, cylinder
head, etc.

KV10117100
Heated oxygen sensor wrench

Loosening or tightening heated oxygen sen-
sor 1
For 22 mm (0.87 in) width hexagon nut

KV10107902
Valve oil seal puller

KV10116100

Valve oil seal puller adapter

Removing valve oil seal

KV10115600
Valve oil seal drift

Installing valve oil seal
Use side A.
a: 20 (0.79) dia.          d: 8 (0.31) dia.
b: 13 (0.51) dia.           e: 10.7 (0.421)
c: 10.3 (0.406) dia.         f: 5 (0.20)
                                              Unit: mm (in)

S-NT046

PBIC1650E

S-NT014

NT379

S-NT605

S-NT603

EM-130

< PREPARATION >

[MR20DD]

PREPARATION

Commercial Service Tools

INFOID:0000000010715450

EM03470000
Piston ring compressor

Installing piston assembly into cylinder bore

KV11103000
Pulley puller

Removing crankshaft pulley

KV11105210
Stopper plate

Fixing drive plate and flywheel

Tool number
Tool name

Description

S-NT044

NT676

ZZA0009D

Tool name

Description

Pilot bushing puller

Removing pilot converter

Spark plug wrench

Removing and installing spark plug

: 14 mm (0.55 in)

Pulley holder

Crankshaft pulley removing and installing

S-NT045

JPBIA0399ZZ

ZZA1010D

PREPARATION

EM-131

< PREPARATION >

[MR20DD]

Valve seat cutter set

Finishing valve seat dimensions

Piston ring expander

Removing and installing piston ring

Valve guide drift

Removing and installing valve guide

Valve guide reamer

Reaming valve guide inner hole

Reaming hole for oversize valve guide

Oxygen sensor thread cleaner

Reconditioning the exhaust system threads
before installing a new heated oxygen sensor
(Use with anti-seize lubricant shown below.)
a: 18 mm (0.71 in) dia. for zirconia heated
oxygen sensor
b: 12 mm (0.47 in) dia. for titania heated ox-
ygen sensor

Anti-seize lubricant (Permatex 133AR
or equivalent meeting MIL specifica-
tion MIL-A-907)

Lubricating oxygen sensor thread cleaning
tool when reconditioning exhaust system
threads

Tool name

Description

S-NT048

S-NT030

PBIC4012E

PBIC4013E

AEM488

AEM489

EM-132

< PREPARATION >

[MR20DD]

PREPARATION

Lubricant or/and Sealant

INFOID:0000000010715451

Manual lift table caddy

Removing and installing engine

Tube presser

Pressing the tube of liquid gasket

Tool name

Description

ZZA1210D

S-NT052

Name

Description

Note

Three bond 1215

Cylinder block

Water drain plug

Three bond 1217H

• Oil pan (lower)
• Rocker cover
• Timing chain
• Oil pan (upper)
• Camshaft
• Cylinder block

—

Three bond 1386B

Cylinder block

Plug

CAMSHAFT VALVE CLEARANCE

EM-133

< BASIC INSPECTION >

[MR20DD]

BASIC INSPECTION

CAMSHAFT VALVE CLEARANCE

Inspection and Adjustment

INFOID:0000000010715452

INSPECTION

Perform inspection as follows after removal, installation or replacement of camshaft or valve-related parts, or if
there is unusual engine conditions regarding valve clearance.
1.

Remove rocker cover. Refer to

EM-170, "Exploded View"

Measure the valve clearance with the following procedure:

Set No. 1 cylinder at TDC of its compression stroke.
• Rotate crankshaft pulley

clockwise and align TDC mark (no

paint)

to timing indicator

on front cover.

• At the same time, check that both intake and exhaust cam

noses of No. 1 cylinder face inside (

) as shown in the figure.

• If they do not face inside, rotate crankshaft pulley once more

(360 degrees) and align as shown in the figure.

Using a feeler gauge, measure the clearance between valve
lifter and camshaft.

: White paint mark (Not use for service)

PBIC3960E

: Camshaft (INT)

: Camshaft (EXH)

: Engine front

JPBIA4347ZZ

Valve clearance

: Refer to

EM-249, "Camshaft"

PBIC3192J

EM-134

< BASIC INSPECTION >

[MR20DD]

CAMSHAFT VALVE CLEARANCE

• By referring to the figure, measure the valve clearances at

locations marked “

” as shown in the table below [locations

indicated with black arrow (

) in the figure] with a feeler

gauge.

Set No. 4 cylinder at TDC of its compression stroke.
• Rotate crankshaft pulley

one revolution (360 degrees) and

align TDC mark (no paint)

to timing indicator

on front

cover.

• By referring to the figure, measure the valve clearance at loca-

tions marked “

” as shown in the table below [locations indi-

cated with black arrow (

) in the figure] with a feeler gauge.

If out of standard, perform adjustment. Refer to “ADJUSTMENT”.

ADJUSTMENT

• Perform adjustment depending on selected head thickness of valve lifter.

Remove camshaft. Refer to

EM-196, "Exploded View"

Remove valve lifters at the locations that are out of the standard.

: Exhaust side

: No. 1 cylinder

: No. 2 cylinder

: No. 3 cylinder

: No. 4 cylinder

: Intake side

: Engine front

JPBIA5120ZZ

Measuring position

No. 1 CYL.

No. 2 CYL.

No. 3 CYL.

No. 4 CYL.

No. 1 cylinder at compression TDC

EXH

INT

: White paint mark (Not use for service)

PBIC3960E

: Exhaust side

: No. 1 cylinder

: No. 2 cylinder

: No. 3 cylinder

: No. 4 cylinder

: Intake side

: Engine front

JPBIA5121ZZ

Measuring position

No. 1 CYL.

No. 2 CYL.

No. 3 CYL.

No. 4 CYL.

No. 4 cylinder at compression TDC

EXH

INT

CAMSHAFT VALVE CLEARANCE

EM-135

< BASIC INSPECTION >

[MR20DD]

Measure the center thickness of the removed valve lifters with a
micrometer (A).

Use the equation below to calculate valve lifter thickness for replacement.

• Thickness of new valve lifter

can be identified by stamp

mark

on the reverse side (inside the cylinder).

• Stamp mark “302H” indicates 3.02 mm (0.1189 in) in thick-

ness.

NOTE:
Available thickness of valve lifter: 26 sizes range 3.00 to 3.50 mm (0.1181 to 0.1378 in) in steps of 0.02
mm (0.0008 in) (when manufactured at factory). Refer to

EM-249, "Camshaft"

Install the selected valve lifter.

Install camshaft. Refer to

EM-196, "Exploded View"

Install timing chain and related parts. Refer to

EM-183, "Exploded View"

Manually rotate crankshaft pulley a few rotations.

Check that the valve clearances is within the standard. Refer to “INSPECTION”.

10. Install remaining parts in the reverse order of removal.

11. Warm up the engine, and check for unusual noise and vibration.

JPBIA0169ZZ

Valve lifter thickness calculation:

t = t

+ (C

– C

)

= Valve lifter thickness to be replaced

= Removed valve lifter thickness

= Measured valve clearance

= Standard valve clearance:

Intake

: 0.28 mm (0.011 in)

Exhaust

: 0.30 mm (0.012 in)

PBIC3196J

EM-136

< BASIC INSPECTION >

[MR20DD]

COMPRESSION PRESSURE

COMPRESSION PRESSURE

Inspection

INFOID:0000000010715453

Warm up engine thoroughly. Then, stop it.

Release the fuel pressure. Refer to

ECM-135, "Work Procedure"

Remove ignition coil and spark plug from each cylinder. Refer to

EM-170, "Exploded View"

Connect engine tachometer (not required in use of CONSULT).

Install compression gauge (A) with an adapter (B) (commercial
service tool) onto spark plug hole.

• Use the adapter whose picking up end inserted to spark plug

hole is smaller than 20 mm (0.79 in) in diameter. Otherwise, it
may be caught by cylinder head during removal.

With accelerator pedal fully depressed, turn ignition switch to “START” for cranking. When the gauge
pointer stabilizes, read the compression pressure and the engine rpm. Perform these steps to check each
cylinder.

CAUTION:

Always use a fully charged battery to obtain the specified engine speed.
• If the engine speed is out of the specified range, check battery liquid for proper gravity. Check the

engine speed again with normal battery gravity.

• If compression pressure is below minimum value, check valve clearances, and parts associated with

combustion chamber (valve, valve seat, piston, piston ring, cylinder bore, cylinder head, cylinder head
gasket). After the checking, measure compression pressure again.

• If some cylinder has low compression pressure, pour small amount of engine oil into the spark plug hole

of the cylinder to recheck it for compression.

- If the added engine oil improves the compression, piston rings may be worn out or damaged. Check pis-

ton rings and replace if necessary.

- If the compression pressure remains at low level despite the addition of engine oil, valves may be mal-

functioning. Check valves for damage. Replace valve or valve seat accordingly.

• If two adjacent cylinders have respectively low compression pressure and their compression remains

low even after the addition of engine oil, cylinder head gaskets are leaking. In such a case, replace cyl-
inder head gaskets.

After inspection is completed, install removed parts.

Start the engine, and check that the engine runs smoothly.

Perform trouble diagnosis. If DTC appears, erase it. Refer to

ECM-65, "CONSULT Function"

JPBIA6826ZZ

: 20 mm (0.79 in)

JPBIA0171ZZ

Compression pressure

: Refer to

EM-248, "General Specification"

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING

EM-137

< SYMPTOM DIAGNOSIS >

[MR20DD]

SYMPTOM DIAGNOSIS

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING

NVH troubleshooting Chart

INFOID:0000000010715454

Locate the area where noise occurs.

Confirm the type of noise.

Specify the operating condition of engine.

Check specified noise source.

If necessary, repair or replace these parts.

JPBIA6913GB

EM-138

< SYMPTOM DIAGNOSIS >

[MR20DD]

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING

A: Closely related

B: Related

C: Sometimes related

—: Not related

Location

of noise

Type of

noise

Operating condition of engine

Source of

noise

Check item

Refer-

ence page

Before

warm-

After

warm-

When

start-

ing

When

idling

When

racing

While

driving

Top of en-
gine
Rocker
cover
Cylinder
head

Ticking or
clicking

—

Tappet
noise

Valve clearance

EM-133

Rattle

—

Camshaft
bearing
noise

Camshaft journal oil
clearance
Camshaft runout

EM-249

Crank-
shaft pul-
ley
Cylinder
block
(Side of
engine)
Oil pan

Slap or
knock

—

Piston pin
noise

Piston to piston pin oil
clearance
Connecting rod bushing
oil clearance

EM-253

Slap or
rap

—

Piston
slap noise

Piston to cylinder bore
clearance
Piston ring side clear-
ance
Piston ring end gap
Connecting rod bend
and torsion

EM-253

Knock

Connect-
ing rod
bearing
noise

Connecting rod bushing
oil clearance
Connecting rod bearing
oil clearance

EM-253
EM-256

Knock

—

Main bear-
ing noise

Main bearing oil clear-
ance
Crankshaft runout

EM-257
EM-253

Front of
engine
Front cov-
er

Tapping or
ticking

—

Timing
chain and
chain ten-
sioner
noise

Timing chain cracks
and wear
Timing chain tensioner
operation

EM-194
EM-183

Front of
engine

Squeak-
ing or fizz-
ing

—

Drive belt
(Sticking
or slip-
ping)

Drive belt deflection

EM-139

Creaking

Drive belt
(Slipping)

Idler pulley bearing op-
eration

Squall
Creak

—

Water
pump
noise

Water pump operation

CO-49

DRIVE BELTS

EM-139

< PERIODIC MAINTENANCE >

[MR20DD]

PERIODIC MAINTENANCE

DRIVE BELTS

Exploded View

INFOID:0000000010715455

Removal and Installation

INFOID:0000000010715456

REMOVAL

Remove front wheel and tire (RH). Refer to

WT-60, "Exploded View"

(with TPMS) or

WT-73, "Exploded

View"

(without TPMS).

Remove front fillet molding (RH). Refer to

EXT-37, "Exploded View"

Remove front fender protector (RH). Refer to

EXT-31, "Exploded View"

Hold the hexagonal part

of drive belt auto-tensioner

with a

wrench securely. Then move the wrench handle in the direction
of arrow (loosening direction of tensioner).

CAUTION:

Avoid placing hand in a location where pinching may occur
if the holding tool accidentally comes off.

Insert a rod approximately 6 mm (0.24 in) in diameter such as
short-length screwdriver into the hole

of the retaining boss to

drive belt auto-tensioner.
• Keep drive belt auto-tensioner pulley arm locked after drive

belt is removed.

INSTALLATION

CAUTION:

• Confirm drive belt is completely set to pulleys.
• Check for engine oil, working fluid and engine coolant are not adhered to drive belt and each pulley

groove.

Release drive belt auto-tensioner, and apply tension to drive belt.

Turn crankshaft pulley clockwise several times to equalize tension between each pulley.

Confirm tension of drive belt at indicator (notch on fixed side) is within the possible use range. Refer to

EM-139, "Exploded View"

Alternator

Drive belt auto-tensioner

Crankshaft pulley

A/C compressor

Water pump

Drive belt

Possible use range

Range when new drive belt is in-
stalled

Indicator

JPBIA4302ZZ

JPBIA4351ZZ

EM-140

< PERIODIC MAINTENANCE >

[MR20DD]

DRIVE BELTS

Inspection

INFOID:0000000010715457

WARNING:

Perform this step when engine is stopped.
• Check that the indicator (notch on fixed side) of drive belt auto-tensioner is within the possible use range

in the figure.
NOTE:
• Check the drive belt auto-tensioner indication when the engine is cold.
• When new drive belt is installed, the indicator (notch on fixed side) should be within the range

in the fig-

ure.

• Visually check entire drive belts for wear, damage or cracks.
• If the indicator (notch on fixed side) is out of the possible use range or belts is damaged, replace belts.

Adjustment

INFOID:0000000010715458

Alternator

Drive belt auto-tensioner

Crankshaft pulley

A/C compressor

Water pump

Drive belt

Possible use range

Range when new drive belt is in-
stalled

Indicator

JPBIA4302ZZ

Refer to

EM-248, "Drive Belt"

AIR CLEANER FILTER

EM-141

< PERIODIC MAINTENANCE >

[MR20DD]

AIR CLEANER FILTER

Exploded View

INFOID:0000000010715459

Removal and Installation

INFOID:0000000010715460

REMOVAL

Release air resonator pawls and remove to upper direction.

Mounting rubber

Air duct assembly

Air cleaner filter unit assembly

Air cleaner filter unit bracket

Air resonator bracket

Air Resonator

Air duct inlet

Clip

Air duct assembly bracket 1

Air duct assembly bracket 2

: Always replace after every disassembly.

: N·m (kg-m, in-lb)

E1BIA1175GB

EM-142

< PERIODIC MAINTENANCE >

[MR20DD]

AIR CLEANER FILTER

Remove the clips

of air cleaner cover

Shifte air cleaner cover

to car front side and remove air

cleaner element

INSTALLATION

Install in the reverse order of removal.
• Insert the projection

of air cleaner element

in such a way so

that it becomes the position (upper front side of car) of illustration.

• Verify that there is no looseness in air cleaner cover and has been

fixed accurately.

• Check that pawls of air resonator are engaged.

Inspection (Dry Paper Type)

INFOID:0000000010715461

INSPECTION AFTER REMOVAL

Examine with eyes that there is no stain, clogging, or damage on air cleaner element.
• Remove dusts (such as dead leafs) on air cleaner element surface and inside cleaner case.
• To clean air cleaner element

, blow air on it from the air intake manifold side

to remove trash or dust.

CAUTION:

• When blowing air on the air cleaner element, attach the

cover to the air cleaner case and stay away from the vehicle
as much as possible to prevent the entry of dirt into the air
cleaner case.

• Never blow air from the ambient air side to prevent clogging.

When the ambient air side needs to be cleaned, attach the
cover to the intake manifold side and lightly dust by hand.

• If clogging or damage is observed, replace the air cleaner element.

: Vehicle front

JPBIA6829ZZ

: Projection

JPBIA6830ZZ

: Projection

JPBIA6830ZZ

Ambient air side

Air blow direction

JSBIA3460ZZ

AIR CLEANER FILTER

EM-143

< PERIODIC MAINTENANCE >

[MR20DD]

MAINTENANCE INTERVAL

Refer to

MA-22, "MR20DD : Periodic Maintenance"

Inspection (Viscous Paper Type)

INFOID:0000000010715462

INSPECTION AFTER REMOVAL

Examine with eyes that there is no stain, clogging, or damage on air cleaner element.
• Remove dusts (such as dead leafs) on air cleaner element surface and inside cleaner case.
• If clogging or damage is observed, replace the air cleaner element.

CAUTION:

Never clean the viscous paper type air cleaner element by blowing as there is a risk of deterioration of
its performance

MAINTENANCE INTERVAL

Refer to

MA-22, "MR20DD : Periodic Maintenance"