Content .. 3 4 5 6 ..

Qashqai J11. Engine mechanical (HRA2DDT, K9K, MR20DD) - part 5

TIMING CHAIN

EM-65

< UNIT DISASSEMBLY AND ASSEMBLY >

[HRA2DDT]

Install timing chain tension guide (2) and timing chain slack
guide (1).

Install chain tensioner (1).
• Fix the plunger at the most compressed position using a stop-

per pin (A), and then install it.

• Securely pull out the stopper pin after installing the chain ten-

sioner.

Check matching mark position of timing chain and each sprocket again.

Install the front oil seal to the front cover. Refer to

EM-87, "FRONT OIL SEAL : Removal and Installation"

Install front cover seal. Refer to

EM-58, "Exploded View"

•

CAUTION:

Be careful not to damage front cover.

Install front cover with the following procedure:

Clean front cover mounting surface and engine surface in contact with front cover.
• Surface must be proper without any liquid gasket, water or dust.

Apply a continuous bead of liquid gasket with tube presser
(commercial service tool) to front cover as shown in the figure.
Use Genuine Liquid Gasket or equivalent.

CAUTION:

Applying excess of liquid gasket can create damage on
parts during tightening sequence.

E1BIA1083ZZ

PBIC3722E

: Liquid gasket application area [

3.0 - 4.0 mm (0.12 - 0.16 in)]

E1BIA1065ZZ

EM-66

< UNIT DISASSEMBLY AND ASSEMBLY >

[HRA2DDT]

TIMING CHAIN

Apply a continuous bead of liquid gasket with tube presser
(commercial service tool) to front cover as shown in the figure.
Use Genuine Liquid Gasket or equivalent.

NOTE:
Liquid gasket must be applied at a distance of 1.0mm (0.04 in)
to 2.0mm (0.08 in) from the inside edge of the timing cover.

CAUTION:

Applying excess of liquid gasket can create damage on
parts during tightening sequence.

Tighten bolts in the numerical order as shown in the figure fol-
lowing the procedure.
1.

Tighten mounting bolts No. 14, 7,10 and 12.

Tighten mounting bolts No. 1, 2, 3, 4, 5, 6,.

Tighten mounting bolts No. 7, 8, 9, 10, 11, 12, 13, 14.

CAUTION:

Be sure to wipe off any excessive liquid gasket leaking to surface.

: Liquid gasket application area [

3.0 - 4.0 mm (0.12 - 0.16 in)]

E1BIA1066ZZ

: 8.0 N·m (0.8 kg-m, 71 in-lb)

E1BIA1088ZZ

: 55.0 N·m (5.6 kg-m, 41 ft-lb)

: 25.0 N·m (2.6 kg-m, 18 ft-lb)

TIMING CHAIN

EM-67

< UNIT DISASSEMBLY AND ASSEMBLY >

[HRA2DDT]

After all bolts are tightened, instal front cover bolts (1).

Insert crankshaft pulley by aligning with crankshaft key.
• When inserting crankshaft pulley with a plastic hammer, tap on its center portion (not circumference).

CAUTION:

Install protecting front oil seal lip section from any damage.

10. Tighten crankshaft pulley bolt with the following procedure:

• Lock the flywheel (1) using a flat blade screw driver.

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

Tighten crankshaft pulley bolt.

Turn another 200 degrees clockwise (angle tightening).
• Check the tightening angle with movement of one angle mark.

11. Check that crankshaft turns smoothly by rotating by hand clockwise.
12. Install in the reverse order of removal.

Inspection

INFOID:0000000010351306

INSPECTION AFTER REMOVAL

Timing Chain

: 10.0 N·m (1.0 kg-m, 7 ft-lb)

E1BIA1089ZZ

: 50.0 N·m (5.1 kg-m, 37 ft-lb)

E1BIA1090ZZ

EM-68

< UNIT DISASSEMBLY AND ASSEMBLY >

[HRA2DDT]

TIMING CHAIN

Check for cracks (A) and any excessive wear (B) 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

—

CYLINDER HEAD

EM-69

< UNIT DISASSEMBLY AND ASSEMBLY >

[HRA2DDT]

CYLINDER HEAD

Exploded View

INFOID:0000000010282237

REMOVAL

Refer to

GI-4, "Components"

for symbols in the figure.

DISASSEMBLY

Cylinder head bolt

Cylinder head bolt washer

Cylinder head

Cylinder head gasket

Dowel pin

Cylinder block

Tightening must be done following the installation procedure.
Refer to

EM-70

E1BIA1018GB

EM-70

< UNIT DISASSEMBLY AND ASSEMBLY >

[HRA2DDT]

CYLINDER HEAD

Refer to

GI-4, "Components"

for symbols in the figure.

Removal and Installation

INFOID:0000000010282238

REMOVAL

Release fuel pressure. Refer to

ECH-121, "Work Procedure"

Drain engine coolant and engine oil. Refer to

CO-11, "Draining"

and

LU-9, "Draining"

CAUTION:

Perform this step when the engine is cold.

Remove the following components and related parts.
• Intake manifold: Refer to

EM-25, "Exploded View"

• Fuel tube and fuel injector: Refer to

EM-42, "Exploded View"

• High pressure fuel pump: Refer to

EM-38, "Exploded View"

• Water outlet: Refer to

CO-27, "Exploded View"

• Exhaust manifold: Refer to

EM-37, "Exploded View"

• Rocker cover: Refer to

EM-49, "Exploded View"

• Front cover and timing chain: Refer to

EM-93, "Exploded View"

• Camshaft: Refer to

EM-77, "Exploded View"

Intake valve lifter

Intake valve collet

Intake valve spring retainer

Intake valve spring

Intake valve oil seal

Intake valve guide

Intake valve seat

Intake valve

Cylinder head

10. Intake camshaft

11. Exhaust camshaft

12. Exhaust valve

13. Exhaust valve seat

14. Exhaust valve guide

15. Exhaust valve oil seal

16. Exhaust valve spring

17. Exhaust valve spring retainer

18. Exhaust valve collet

19. Exhaust valve lifter

Replacement must be following the disassembly and assembly procedure.
Refer to

EM-71

E1BIA1019GB

CYLINDER HEAD

EM-71

< UNIT DISASSEMBLY AND ASSEMBLY >

[HRA2DDT]

Remove cylinder head loosening bolts in reverse order as
shown in the figure with cylinder head wrench (commercial ser-
vice tool).

Remove cylinder head gasket.

INSTALLATION

Install new cylinder head gasket.

Tighten cylinder head bolts in numerical order as shown in the
figure with the following procedure to install cylinder head.

CAUTION:

Cylinder head bolts can not be reuse.

Apply new engine oil to threads and seating surfaces of mount-
ing bolts.

Tighten all bolts.

Turn all bolts 270 degrees clockwise (angle tightening).

CAUTION:

Check and confirm the tightening angle by using the angle
wrench [SST: KV10112100] (A) or protractor. Avoid judg-
ment by visual inspection without the tool.

Install in the reverse order of removal after this step.

Disassembly and Assembly

INFOID:0000000010282239

DISASSEMBLY

Remove spark plug with a spark plug wrench (commercial service tool).

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

Remove valve collet.

: INT side

: EXH side

: Engine front

E1BIA1042ZZ

: INT side

: EXH side

: Engine front

: 25.0 N·m (2.6 kg-m, 18 ft-lb)

E1BIA1042ZZ

PBIC3733E

EM-72

< UNIT DISASSEMBLY AND ASSEMBLY >

[HRA2DDT]

CYLINDER HEAD

• Compress valve spring with the valve spring compressor

(commercial service tool).

• Remove valve collet with a magnet hand.

CAUTION:

When working, be careful not to damage valve lifter holes.

Remove valve spring retainer and valve spring.

Measure position "H" of one of the valve oil seal with the follow-
ing procedure.

CAUTION:

Before removing the valves and the valve oil seals, it is vital
to measure position "H" of one of the valve oil seal in rela-
tion with the cylinder head using [SST: KV113B0330 (Mot.
1511)] or equivalent tool.

Install the push rod (A) of [SST: KV113B0330 (Mot. 1511)] or
equivalent tool on the valve oil seal.
NOTE:
The inner diameter of the push rod must be identical to that of
the valve. In addition, the bottom of the push rod must come into
contact with the metal upper section of the valve oil seal.

Install the guide tube (B) over the push rod until the guide tube
comes into contact with the cylinder head, locking the push rod
with the knurled wheel.

Remove the guide tube assembly and push rod, being careful
not to loosen the knurled wheel.

Push valve stem to combustion chamber side, and remove
valve.
• Identify installation positions, and store them without mixing

them up.

Remove using [SST: KV113B0090 (Mot. 1335)] or equivalent
valve oil seals.

Remove valve spring seat.

ASSEMBLY

Check valve seat contact. Refer to

EM-74, "Inspection"

Install valve.

E1BIA1100ZZ

MBIB0417E

MBIB0418E

MBIB0419E

CYLINDER HEAD

EM-73

< UNIT DISASSEMBLY AND ASSEMBLY >

[HRA2DDT]

• Lubricate the inside of the valve guide.

Instal valve oil seal with the following procedure.

Install the barrel of [SST: KV113B0330 (Mot. 1511)] or equiva-
lent tool on the valve stem.
NOTE:
The inner diameter of the barrel must be identical to the diame-
ter of the valve stem.

Keep the valve pressed in contact with the valve seat

Install the valve oil seal on the barel of [SST: KV113B0330 (Mot.
1511)] or equivalent.
NOTE:
Never lubricate the valve oil seal before install them.

Push the valve oi seal until it past the barrel of [SST:
KV113B0330 (Mot. 1511)] or equivalent then remove the barrel
of [SST: KV113B0330 (Mot. 1511)] or equivalent.

MBIB0421E

MBIB0422E

MBIB0423E

MBIB0424E

EM-74

< UNIT DISASSEMBLY AND ASSEMBLY >

[HRA2DDT]

CYLINDER HEAD

Install guide tube and push rod of [SST: KV113B0330 (Mot.
1511)] or equivalent on the valve oil seal.

Push the valve oil seal by tapping by hand on the sleeve of [SST:
KV113B0330 (Mot. 1511)] or equivalent until guide tube reaches
the cylinder head.

Repeat the operations for all the valves.

Install valve spring seat.

Install valve spring and valve spring retainer.

Install valve collet.
• Compress valve spring with the valve spring compressor.

valve (commercial service tool).

• Install valve collet with a magnet hand.

CAUTION:

When working, be careful not to damage valve lifter holes.

• Tap valve stem edge lightly with a plastic hammer after instal-

lation to check its installed condition.

Install valve lifter.

Install spark plug with a spark plug wrench (commercial service
tool).

Inspection

INFOID:0000000010365193

INSPECTION AFTER REMOVAL

Cylinder Head Distortion

NOTE:
When performing this inspection, cylinder block distortion should be also checking. Refer to

EM-102, "Inspec-

tion"

Wipe off engine oil and remove water scale (like deposit), gasket, sealant, carbon, etc. with a scraper.

CAUTION:

Use utmost care not to allow gasket debris to enter passages for engine oil or engine coolant.

MBIB0425E

E1BIA1100ZZ

CYLINDER HEAD

EM-75

< UNIT DISASSEMBLY AND ASSEMBLY >

[HRA2DDT]

At each of several locations on bottom surface of cylinder head,
measure the distortion in six directions.

• If it exceeds the limit, replace cylinder head.

INSPECTION AFTER DISASSEMBLY

VALVE DIMENSIONS

• Check the dimensions of each valve. For the dimensions, refer to

EM-116, "Cylinder Head"

• If dimensions are out of the standard, replace valve and check valve seat contact. Refer to “VALVE SEAT

CONTACT”.

VALVE GUIDE CLEARANCE

Valve Stem Diameter

• Measure the diameter of valve stem with micrometer (A).

Valve Guide Inner Diameter

• Measure the inner diameter of valve guide with bore gauge.

Valve Guide Clearance

• (Valve guide clearance) = (Valve guide inner diameter) – (Valve

stem diameter)

VALVE SEAT CONTACT

• After confirming that the dimensions of valve guides and valves are within the specifications, perform this

procedure.

• Apply prussian blue (or white lead) onto contacting surface of valve seat to check the condition of the valve

contact on the surface.

• Check if the contact area band is continuous all around the circum-

ference.

VALVE SPRING SQUARENESS

: Straightedge

: Feeler gauge

Limit

: Refer to

EM-116, "Cylinder Head"

PBIC3207J

Standard

: Refer to

EM-116, "Cylinder Head"

Standard

: Refer to

EM-116, "Cylinder Head"

Standard and Limit

: Refer to

EM-116, "Cylinder

Head"

PBIC3213J

: OK

JPBIA0187ZZ

EM-76

< UNIT DISASSEMBLY AND ASSEMBLY >

[HRA2DDT]

CYLINDER HEAD

• Set a try square (A) along the side of valve spring and rotate

spring. Measure the maximum clearance between the top of spring
and try square.

• If it exceeds the limit, replace valve spring.

VALVE SPRING DIMENSIONS AND VALVE SPRING PRESSURE LOAD

• Check valve spring pressure with valve spring seat installed at the

specified spring height.

CAUTION:

Never remove valve spring seat from valve spring.

• If the installation load or load with valve open is out of the stan-

dard, replace valve spring (with valve spring seat).

INSPECTION AFTER INSTALLATION

Inspection for Leaks

The following are procedures for checking fluids leak, lubricates leak and exhaust gases leak.

• 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 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, exhaust gases, 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.

: Contact

Limit

: Refer to

EM-116, "Cylinder Head"

PBIC3219J

Standard

: Refer to

EM-116, "Cylinder Head"

INSPECTION

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

—

CAMSHAFT

EM-77

< UNIT DISASSEMBLY AND ASSEMBLY >

[HRA2DDT]

CAMSHAFT

Exploded View

INFOID:0000000010282231

Refer to

GI-4, "Components"

for symbols in the figure.

Removal and Installation

INFOID:0000000010282232

CAUTION:

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

REMOVAL

Remove timing belt. Refer to

EM-59, "Removal and Installation"

Remove cylinder head closing plate with the following procedure.

Remove cylinder head closing plate bolts. Refer to

EM-77, "Exploded View"

Exhaust and intake camshaft bear-
ing cap guide

Exhaust and intake camshaft
bearing cap (timing chain side)

Camshaft bearing cap (center)

Exhaust camshaft bearing cap
(gearbox side)

Intake camshaft bearing cap
(gearbox side)

Exhaust camshaft

Intake camshaft

Cylinder head closing plate

Cylinder head

Tightening must be done following the installation procedure.
Refer to

EM-77

E1BIA1017GB

EM-78

< UNIT DISASSEMBLY AND ASSEMBLY >

[HRA2DDT]

CAMSHAFT

Separate cylinder head closing plate from cylinder head using a
flatblade screw driver (1).

CAUTION:

• Be careful not to damage the matting surface.

Remove cylinder head closing plate.

Remove intake camshaft sprocket with the following procedure.

CAUTION:

• It is strictly forbidden to apply any pressure to oil pan.
• Damage oil pan will irreparably damage the engine by:
- blocking the strainer
- Raising oil level above maximum, with a risk of engine racing

Remove intake camshaft sprocket bolt.
• Hold intake camshaft using open end spanner (1)
• Loosen the bolts in several steps, and then remove them.
• Remove intake camshaft sprocket.

Remove exhaust camshaft sprocket with the following procedure.

CAUTION:

Remove exhaust camshaft sprocket bolt.
• Hold exhaust camshaft using open end spanner (1)
• Loosen the bolts in several steps, and then remove them.
• Remove exhaust camshaft sprocket.

E1BIA1091ZZ

E1BIA1060ZZ

E1BIA1061ZZ

CAMSHAFT

EM-79

< UNIT DISASSEMBLY AND ASSEMBLY >

[HRA2DDT]

Remove camshaft brackets with the following procedure.

Remove camshaft brackets (No.1 to 6).
• Loosen bolts in several steps in the reverse of the order as shown in the figure.
• Identify installation positions for each camshaft brackets, and store them without mixing them up.

Remove camshaft (EXH).

Remove camshaft (INT).

Remove valve lifter.
• Identify installation positions for each camshaft brackets, and store them without mixing them up.

INSTALLATION

Install valve lifter with the following procedure.
• If it is reused, install in its original positions.

Apply engine oil on each valve lifter housing.

Set each valve lifter into the repective seat of the cylinder head.

Apply engine oil on the valve lifter, on the sliding surface of cam.

Install camshaft.

• Distinction between camshaft (INT and EXH) is performed with

the different length of each one.

• Apply oil on the camshaft journal. of the cylinder head.

: EXH side

: INT side

: Engine front

E1BIA1092ZZ

: Camshaft (EXH)

: Camshaft (INT)

: Engine front

E1BIA1093ZZ

EM-80

< UNIT DISASSEMBLY AND ASSEMBLY >

[HRA2DDT]

CAMSHAFT

• Install camshafts to the cylinder head so that lugs (A) on front

end are positioned as shown in the figure.

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

Install camshaft brackets (No. 1 to 6) aligning the identification
marks on upper surface as shown in the figure.

• Install so that identification mark can be correctly read when

viewed from the INT side.
NOTE:
There is no identification mark for the bracket No.1 (INT and
EXH) and for the bracket No. 6 (INT).

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

Tighten No. 1 to 13 in numerical order.

Tighten No.1 to 13 in numerical order.

Install cylinder head closing plate with the following procedure.

: Camshaft (EXH)

: Camshaft (INT)

E1BIA1094ZZ

: EXH side

: INT side

: Engine front

E1BIA1095ZZ

: EXH side

: INT side

: Engine front

: 4.0 N·m (0.4 kg-m, 3 ft-lb)

: 10.4 N·m (1.1 kg-m, 8 ft-lb)

E1BIA1092ZZ

Content .. 3 4 5 6 ..