Qashqai J11. Engine mechanical (HRA2DDT, K9K, MR20DD) - part 13

TIMING CHAIN

EM-193

< UNIT DISASSEMBLY AND ASSEMBLY >

[MR20DD]

Install front cover, and tighten mounting bolts in the order from 1
to 22 as shown in the figure.
• Refer to the following for the installation position of bolts.

CAUTION:

Attaching should be done within 5 minutes after liquid gas-
ket application.

After all bolts are tightened, retighten them to specified torque in
numerical order as shown in the figure.

CAUTION:

Be sure to wipe off any excessive liquid gasket leaking.

12. Install VTC cover according to the following instructions:

a.Apply liquid gasket

(Three Bond 1217H or an equivalent)

evenly (no break, no overlap) to the position shown in the figure.
Refer to

EM-126, "Liquid Gasket"

CAUTION:

Install within 5 minutes after applying liquid gasket.
NOTE:
Overlap the start and end of liquid gasket application positions
at least 5 mm.

M6 bolt

: No. 1

: 6.6 N·m (0.67 kg-m, 58 in-lb)

M10 bolts

: No. 6, 7, 10, 13, 21

: 55.0 N·m (5.6 kg-m, 41 ft-lb)

M12 bolts

: No. 2, 4, 8, 11

: 75.0 N·m (7.7 kg-m, 55 ft-lb)

M8 bolts

: Except the above

: 25.0 N·m (2.6 kg-m, 19 ft-lb)

JPBIA6821ZZ

: Front cover

: VTC cover

: Start/End of liquid gasket application

: 4.0 – 5.6 mm

3.4 – 4.4 mm

JPBIA6823ZZ

EM-194

< UNIT DISASSEMBLY AND ASSEMBLY >

[MR20DD]

TIMING CHAIN

Install O-ring to the groove of front cover

CAUTION:

Oil filter must be inserted to the end of O-ring installation
part.

Tighten mounting bolts to the specified torque in the order from
1 to 8 as shown in the figure.

CAUTION:

After tightening mounting bolts, wipe out extra liquid gas-
ket.
NOTE:
Bolt 1 must be tightened twice, the second tightening is shown
by 6.

13. Install crankshaft pulley with the following procedure:

When inserting crankshaft pulley with a plastic hammer, tap on its center portion (not circumference).

CAUTION:

Never damage front oil seal lip portion.

Secure crankshaft pulley

with a pulley holder (commercial

service tool)

Apply new engine oil to thread and seat surfaces of crankshaft
pulley bolt.

Tighten crankshaft pulley bolt.

Put a paint mark

on crankshaft pulley

, matching with any

one of six easy to recognize angle marks

on crankshaft pulley

bolt

flange.

Turn another 60 degrees clockwise (angle tightening).
• Check the tightening angle with movement of one angle mark.

Check that crankshaft rotates clockwise smoothly.

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

Inspection

INFOID:0000000010715501

INSPECTION AFTER REMOVAL

Timing Chain

: O-ring installation position

JPBIA6824ZZ

JPBIA6820ZZ

: 29.4 N·m (3.0 kg-m, 22 ft-lb)

PBIC3961E

PBIC3963E

TIMING CHAIN

EM-195

< UNIT DISASSEMBLY AND ASSEMBLY >

[MR20DD]

Check for cracks

and any excessive wear

at link plates and

roller links of timing chain. Replace timing chain if necessary.

INSPECTION AFTER INSTALLATION

Inspection for Leakage

The following are procedures for checking fluids leakage, lubricates leakage, and exhaust gases 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-59, "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 chain tensioner drops after removal/installation, slack in guide may generate a
pounding noise during and just after the engine start. However, this does not indicate an unusualness. 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.

PBIC3169J

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

Exhaust gases

—

Leakage

—

EM-196

< UNIT DISASSEMBLY AND ASSEMBLY >

[MR20DD]

CAMSHAFT

CAMSHAFT

Exploded View

INFOID:0000000010715502

JSBIA1181GB

Exhaust valve timing control position sensor

O-ring

Camshaft bracket

Camshaft (EXH)

Camshaft sprocket (EXH)

Camshaft sprocket (INT)

Camshaft (INT)

Valve lifter (EXH)

Valve lifter (INT)

Signal plate (INT)

Signal plate (EXH)

O-ring

Camshaft position sensor (PHASE)

Comply with the assembly procedure when
tightening. Refer to

EM-197

: N·m (kg-m, ft-lb)

: N·m (kg-m, in-lb)

: Always replace after every disassembly.

: Should be lubricated with oil.

: Sealing point

: Select with proper thickness.

CAMSHAFT

EM-197

< UNIT DISASSEMBLY AND ASSEMBLY >

[MR20DD]

Removal and Installation

INFOID:0000000010715503

CAUTION:

The rotating direction in the text indicates all directions seen from the engine front.

REMOVAL

Remove the following parts.
• Intake manifold: Refer to

EM-149, "Exploded View"

• Rocker cover: Refer to

EM-170, "Exploded View"

• Front cover and timing chain related parts: Refer to

EM-183, "Exploded View"

NOTE:
Removal of oil pump drive related part is not necessary.

Remove camshaft position sensor (PHASE) and exhaust valve timing control position sensor from cam-
shaft bracket.

CAUTION:

• Handle camshaft position sensor (PHASE) and exhaust valve timing control position sensor

carefully and avoid impacts.

• Never disassemble camshaft position sensor (PHASE) and exhaust valve timing control position

sensor.

• Never place sensor where it is exposed to magnetism.

Put the matching mark

on the camshaft sprocket (INT)

camshaft sprocket (EXH)

and the camshaft bracket

shown in the figure.
NOTE:
It prevents the knock pin of the camshaft (INT) from engaging
with the incorrect pin hole when installing the camshaft sprocket
(INT).

Remove camshaft sprockets (INT and EXH).
• Secure hexagonal part

of camshaft with a wrench. Loosen

camshaft sprocket mounting bolts and remove camshaft
sprocket.

CAUTION:

• Never rotate crankshaft or camshaft while timing chain

is removed. It causes interference between valve and
piston.

• Never loosen the mounting bolts with securing anything

other than the camshaft hexagonal part or with tensioning the timing chain.

Remove camshaft bracket with the following procedure:

Loosen mounting bolts in reverse order as shown in the figure.

JPBIA4404ZZ

: Camshaft sprocket (INT)

: Camshaft sprocket (EXH)

JPBIA4405ZZ

: Engine front

JPBIA4406ZZ

EM-198

< UNIT DISASSEMBLY AND ASSEMBLY >

[MR20DD]

CAMSHAFT

Cut liquid gasket by prying the position (

) shown in the figure,

and then remove the camshaft bracket.

CAUTION:

• Never damage the mating surface.
• A more adhesive liquid gasket is applied compared to pre-

vious types when shipped, so it should not be forced off
the position not specified.

Remove camshafts.

Remove valve lifters.
• Identify installation positions, and store them without mixing them up.

Remove signal plate from camshaft, if necessary.

INSTALLATION

CAUTION:

Do not reuse O-rings.

Install valve lifters.
• Install them in the original positions.

Install camshafts.
• Clean camshaft journal to remove any foreign material.
• Distinguish between the intake and the exhaust by looking at

the different shapes of the front and rear ends of the camshaft
or using the identification colors

and

• Install camshafts so that camshaft dowel pins

on the front

side are positioned as shown in the figure.

NOTE:
Though camshaft does not stop at the positions as shown in
the figure, for the placement of cam nose, it is generally
accepted camshaft is placed for the same direction of the fig-
ure.

Install camshaft bracket with the following procedure:

Remove foreign material completely from camshaft bracket backside and from cylinder head installation
face.

: Engine front

JPBIA4407ZZ

: Camshaft (EXH)

: Camshaft (INT)

Identification color

Camshaft (EXH)

—

Brown

Camshaft (INT)

Purple

—

: Camshaft (EXH)

: Camshaft (INT)

JPBIA4408ZZ

JPBIA4409ZZ

CAMSHAFT

EM-199

< UNIT DISASSEMBLY AND ASSEMBLY >

[MR20DD]

Apply liquid gasket

to camshaft bracket as shown in the fig-

ure.

Use Genuine Liquid Gasket (Three Bond 1217H) or equiva-
lent.

Tighten mounting bolts of camshaft brackets in the following
steps, in numerical order as shown in the figure.

• There are two types of mounting bolts. Refer to the following

for locating bolts.

Tighten mounting bolts in numerical order.

ii.

Tighten mounting bolts in numerical order.

iii.

Tighten mounting bolts in numerical order.

CAUTION:

After tightening mounting bolts of camshaft brackets, be sure to wipe off excessive liquid gasket
from the mating surface of cylinder head.

Install the camshaft sprocket to the camshaft with the following procedure.

: Plug hole inner wall

3.4 - 4.4 mm (0.134 - 0.173 in)

: Engine front

: Engine outside

JPBIA4410ZZ

: Engine front

M6 bolts [thread length: 57.5 mm (2.264 in)]

: 13, 14, and 15 in the figure

M6 bolts [thread length: 35.0 mm (1.378 in)]

: Except the above

: 1.96 N·m (0.20 kg-m, 17 in-lb)

: 5.88 N·m (0.60 kg-m, 52 in-lb)

: 9.5 N·m (0.97 kg-m, 84 in-lb)

JPBIA4406ZZ

EM-200

< UNIT DISASSEMBLY AND ASSEMBLY >

[MR20DD]

CAMSHAFT

When the camshaft sprocket (INT)

and camshaft sprocket

(EXH)

is removed, refer to the paint mark

put according to

step “3”. Securely align the knock pin and the pin hole, and then
install them.

Tighten bolts in the following steps.
• Secure the hexagonal part of camshaft using wrench to tighten mounting bolt.

Tighten camshaft mounting bolt.

ii.

Turn 30 degrees clockwise (angle tightening).

CAUTION:

Check the tightening angle by using an angle wrench [SST:
KV10112100] (B) or protractor. Never judge by visual
inspection without an angle wrench.

Install timing chain and related parts. Refer to

EM-183, "Exploded View"

Inspect and adjust valve clearance. Refer to

EM-133, "Inspection and Adjustment"

Install remaining parts in the reverse order of removal.

Inspection

INFOID:0000000010715504

INSPECTION AFTER REMOVAL

Camshaft Runout

Put V-block on a precise flat table, and support No. 2 and 5 journal 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.

Set dial indicator (A) vertically to No. 3 journal.

Turn camshaft to one direction with hands, and measure the
camshaft runout on dial indicator. (Total indicator reading)

If it exceeds the limit, replace camshaft.

Camshaft Cam Height

: Camshaft bracket

JPBIA4404ZZ

: 35.0 N·m (3.6 kg-m, 26 ft-lb)

: Camshaft sprocket

: Camshaft hexagonal part

JPBIA4412ZZ

Standard and Limit

: Refer to

EM-249, "Camshaft"

JSBIA2445ZZ

CAMSHAFT

EM-201

< UNIT DISASSEMBLY AND ASSEMBLY >

[MR20DD]

Measure the camshaft cam height with a micrometer (A).

If it exceeds the limit, replace camshaft.

Camshaft Journal Oil Clearance

CAMSHAFT JOURNAL OUTER DIAMETER
Measure the outer diameter of camshaft journal with a micrometer
(A).

CAMSHAFT BRACKET INNER DIAMETER
• Tighten camshaft bracket bolts with specified torque. Refer to

EM-197, "Removal and Installation"

• Measure the inner diameter of camshaft bracket with a cylinder

gauge .

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

• If it exceeds the limit, replace camshaft or cylinder head, or both.

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

Install camshaft in cylinder head. Refer to

EM-197, "Removal and Installation"

Standard and Limit

: Refer to

EM-249, "Camshaft"

JPBIA6382ZZ

Standard

: Refer to

EM-249, "Camshaft"

JPBIA6337ZZ

: Measuring direction of inner diameter

Standard

: Refer to

EM-249, "Camshaft"

PBIC3180J

Standard and Limit

: Refer to

EM-249, "Camshaft"

EM-202

< UNIT DISASSEMBLY AND ASSEMBLY >

[MR20DD]

CAMSHAFT

Install dial indicator in thrust direction on front end of camshaft.
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 groove of cylinder head No. 1 journal

- Dimension (B) for camshaft flange

• 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 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.

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-249,

"Camshaft"

Valve Lifter Clearance

VALVE LIFTER OUTER DIAMETER

Standard and Limit

: Refer to

EM-249, "Camshaft"

PBIC3181J

Standard

: 4.000 - 4.030 mm (0.1575 - 0.1587 in)

Standard

: 3.877 - 3.925 mm (0.1526 - 0.1545 in)

PBIC3183J

Limit

: Refer to

EM-249, "Camshaft"

JPBIA4413ZZ

KBIA0182E

CAMSHAFT

EM-203

< UNIT DISASSEMBLY AND ASSEMBLY >

[MR20DD]

• Measure the outer diameter of valve lifter with a micrometer (A).

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 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 (INT), (EXH) Oil Groove

CAUTION:

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

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

ECM-157, "Diagno-

sis Procedure"

(P0011) or

ECM-161, "Diagnosis Procedure"

(P0014).

• Check when engine is cold so as to prevent burns by the splashing engine oil.
1.

Check engine oil level. Refer to

LU-22, "Inspection"

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

Release the fuel pressure. Refer to

ECM-135, "Work Procedure"

Remove intake manifold. Refer to

EM-149, "Exploded View"

Disconnect ignition coil and injector harness connectors.

Support the bottom surface of engine using a transmission jack, and then remove the engine mounting
bracket (RH) and engine mounting insulator (RH). Refer to

EM-172, "Exploded View"

Remove intake or exhaust valve timing control solenoid valve. Refer to

EM-183, "Exploded View"

• Lift the front side of the engine with a jack base to remove intake or exhaust valve timing control sole-

noid valve.

Clean the mounting area of intake or exhaust valve timing control solenoid valve, and then insert a clean
waste with no oil adhesion into the oil hole of the cylinder head.

Install engine mounting insulator (RH) and engine mounting bracket (RH). (After the removal of intake or
exhaust valve timing control solenoid valve and insertion of a waste into the oil hole.)

Perform cranking to check that engine oil comes out from the oil hole (mounting hole of intake or exhaust
valve timing control solenoid valve) of cylinder head.
• Regarding the engine oil check, judge it by the amount of oil adhered to the wasted inserted into the oil

hole.

WARNING:

• Never insert fingers into the oil hole.
• Never touch rotating parts (drive belt, idler pulleys and crankshaft pulley, etc.).

CAUTION:

Standard

: Refer to

EM-249, "Camshaft"

JPBIA0125ZZ

Standard

: Refer to

EM-249, "Camshaft"

Standard

: Refer to

EM-249, "Camshaft"

PBIC3184J

EM-204

< UNIT DISASSEMBLY AND ASSEMBLY >

[MR20DD]

CAMSHAFT

• Never perform cranking without installing the engine mounting insulator (RH) and engine mount-

ing bracket (RH).

• 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 not to apply engine oil to rubber parts of drive belt,
engine mounting insulator, etc. Wipe engine oil off immediately if it is splashed.

Perform the following inspection if engine oil does not come out from intake or exhaust valve timing con-
trol solenoid valve oil hole of the cylinder head.
• Clean oil groove between oil strainer and intake valve timing control solenoid valve. Refer to

LU-20,

"Engine Lubrication System"

and

LU-21, "Engine Lubrication System Schematic"

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

LU-20, "Engine Lubrication System"

and

LU-21, "Engine Lubrica-

tion System Schematic"

After inspection, install removed parts in the reverse order.

OIL SEAL

EM-205

< UNIT DISASSEMBLY AND ASSEMBLY >

[MR20DD]

OIL SEAL

VALVE OIL SEAL

VALVE OIL SEAL : Removal and Installation

INFOID:0000000010715505

REMOVAL

Remove camshafts. Refer to

EM-196, "Exploded View"

Remove valve lifters. Refer to

EM-196, "Exploded View"

Rotate crankshaft, and set piston whose valve oil seal is to be removed to TDC. This will prevent valve
from dropping into cylinder.

CAUTION:

When rotating crankshaft, be careful to avoid scarring front cover with timing chain.

Remove valve collet.
• Compress valve spring with the valve spring compressor [SST:

KV10116200] (A), the attachment [SST: KV10115900] (C), and
the adapter [SST: KV10109220] (B). Remove valve collet with
magnet hand.

CAUTION:

• Never damage valve lifter holes.
• Fit the attachment [SST: KV10115900] in the center of

valve spring retainer to press it.

Remove valve spring retainer and valve spring (with valve spring seat).

CAUTION:

Never remove valve spring seat from valve spring.

Remove valve oil seal with the valve oil seal puller [SST:
KV10107902] .

INSTALLATION

Apply new engine oil to valve oil seal joint surface and seal lip.

JPBIA1365ZZ

: Valve spring retainer

: Attachment

JPBIA4477ZZ

PBIC3210J

EM-206

< UNIT DISASSEMBLY AND ASSEMBLY >

[MR20DD]

OIL SEAL

Press in valve oil seal to the height (H) shown in the figure with
the valve oil seal drift [SST: KV10115600]

Install in the reverse order of removal, for the rest of parts.

FRONT OIL SEAL

FRONT OIL SEAL : Removal and Installation

INFOID:0000000010715506

REMOVAL

Remove the following parts.
• Front fender protector (RH): Refer to

EXT-31, "Exploded View"

• Drive belt: Refer to

EM-139, "Exploded View"

• Crankshaft pulley: Refer to

EM-222, "Exploded View"

Remove front oil seal with a suitable tool.

CAUTION:

Never damage front cover and crankshaft.

INSTALLATION

Apply new engine oil to new front oil seal joint surface and seal lip.

Install front oil seal so that each seal lip is oriented as shown in
the figure.

• Press-fit front oil seal using a suitable drift with outer diameter 57 mm (2.24 in) and inner diameter 45

mm (1.77 in).

CAUTION:

• Never damage front cover and crankshaft.
• Press-fit oil seal straight to avoid causing burrs or tilting.

Install in the reverse order of removal, for the rest of parts.

REAR OIL SEAL

REAR OIL SEAL : Removal and Installation

INFOID:0000000010715507

REMOVAL

Height (H)

: 15.1 - 15.7 mm (0.594 - 0.618 in)

PBIC3211J

: Dust seal lip

: Oil seal lip

: Engine outside

: Engine inside

PBIC3485J

Within 0.3 mm (0.012 in) toward engine front (crankshaft pulley side)

Within 0.5 mm (0.020 in) toward engine rear (crankshaft sprocket side)

OIL SEAL

EM-207

< UNIT DISASSEMBLY AND ASSEMBLY >

[MR20DD]

Remove transaxle assembly. Refer to

TM-415, "Exploded View"

(CVT models) or

TM-35, "Exploded View"

(6MT models).

Remove clutch cover and clutch disk (6MT models). Refer to

CL-19, "MR20DD : Exploded View"

Remove drive plate (CVT models) or flywheel (6MT models). Refer to

EM-181, "Exploded View"

(CVT

models) or

EM-178, "Exploded View"

(6MT models).

Remove rear oil seal with a suitable tool.

CAUTION:

Never damage crankshaft and cylinder block.

INSTALLATION

Apply the liquid gasket lightly to entire outside area of new rear oil seal.
Use Genuine Liquid Gasket or equivalent.

Install rear oil seal so that each seal lip is oriented as shown in
the figure.

• Press-fit rear oil seal with a suitable drift (A) outer diameter

115 mm (4.53 in) and inner diameter 90 mm (3.54 in).

CAUTION:

• Never damage crankshaft and cylinder block.
• Press-fit oil seal straight to avoid causing burrs or tilt-

ing.

• Never touch grease applied onto oil seal lip.

• Press in rear oil seal

to the position as shown in the figure.

Install in the reverse order of removal, for the rest of parts.

: Dust seal lip

: Oil seal lip

: Engine outside

: Engine inside

PBIC3485J

JPBIA4414ZZ

: Rear end surface of cylinder block

PBIC3952E

EM-208

< UNIT DISASSEMBLY AND ASSEMBLY >

[MR20DD]

CYLINDER HEAD

CYLINDER HEAD

Exploded View

INFOID:0000000010715508

REMOVAL

DISASSEMBLY

Cylinder head assembly

Cylinder head bolt

Cylinder head gasket

Comply with the installation procedure
when tightening. Refer to

EM-209

: Always replace after every disassembly.

: N·m (kg-m, ft-lb)

: Should be lubricated with oil.

JPBIA4316ZZ

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