Qashqai J11. Engine mechanical (HRA2DDT, K9K, MR20DD) — part 4
IGNITION COIL, SPARK PLUG AND ROCKER COVER
EM-49
< REMOVAL AND INSTALLATION >
[HRA2DDT]
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IGNITION COIL, SPARK PLUG AND ROCKER COVER
Exploded View
INFOID:0000000010282226
for symbol marks in the figure.
Removal and Installation
INFOID:0000000010282227
REMOVAL
1.
Camshaft position sensor (EXH)
2.
Camshaft position sensor (INT)
3.
Rocker cover
4.
Rocker cover gasket
5.
Dowel pin
6.
Camshaft (EXH)
7.
Camshaft (INT)
8.
Cylinder head
9.
Engine slinger
10.
Spark plug
11.
Ignition coil
E1BIA1014GB
EM-50
< REMOVAL AND INSTALLATION >
[HRA2DDT]
IGNITION COIL, SPARK PLUG AND ROCKER COVER
1.
Remove brake booster hose (1).
2.
Remove air inlet hose and electric blow off valve. Refer to
EM-27, "Removal and Installation"
.
3.
Remove ignition coil.
CAUTION:
• Never drop or shock ignition coil.
• Never disassemble ignition coil.
4.
Remove spark plug. Refer to
EM-20, "Removal and Installation"
5.
Remove camshaft position sensor (INT and EXH). Refer to
.
6.
Remove PCV hose from rocker cover. Refer to
7.
Remove high pressure fuel pump. Refer to
EM-38, "Removal and Installation"
.
8.
Remove turbocharger heat shield.
9.
Disconnect and unclip A/F sensors harness.
10. Remove rocker cover.
• Loosen bolts in reverse order as shown in the figure.
NOTE:
Rocker cover bolts are not same, mark their positions.
11. Remove rocker cover gasket from rocker cover.
12. Use scraper to remove all traces of liquid gasket from cylinder head and front cover.
CAUTION:
Never scratch or damage the mating surface when cleaning off old liquid gasket.
INSTALLATION
1.
Rocker cover with the following procedure:
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IGNITION COIL, SPARK PLUG AND ROCKER COVER
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[HRA2DDT]
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a.
Apply liquid gasket to the position (1) as shown in the figure.
Use Genuine Liquid Gasket or equivalent.
b.
Install rocker cover to cylinder head.
CAUTION:
Check the gasket is not dropped.
• Tighten bolts in two steps separately in numerical order as shown in the figure.
2.
Apply a bead of grease of 2 mm (0.08 in) diameter on the inter-
nal perimeter of the coil as shown in the figure.
3.
When replacing camshaft position sensor, this precedure must be performed. Refer to
4.
Install in the reverse order of removal, for the rest of parts.
1
: Cylinder head
2
: Front cover
a
:
φ
2.5 - 3.5 mm (0.10 - 0.14 in)
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EM-52
< UNIT REMOVAL AND INSTALLATION >
[HRA2DDT]
ENGINE ASSEMBLY
UNIT REMOVAL AND INSTALLATION
ENGINE ASSEMBLY
Exploded View
INFOID:0000000010282241
for symbols in the figure.
Removal and Installation
INFOID:0000000010282242
WARNING:
• Situate the vehicle on a flat and solid surface.
• Place chocks at front and back of rear wheels.
• Attach proper slingers and bolts described in PARTS CATALOG if engine slingers are not equipped.
CAUTION:
• Always be careful to work safely, avoid forceful or uninstructed operations.
• Never start working until exhaust system and coolant are cool enough.
• If items or work required are not covered by the engine section, refer to the applicable sections.
• Always use the support point specified for lifting.
1.
Engine mounting insulator (RH)
2.
Rubber
3.
Engine mounting insulator (LH)
4.
Engine mounting frame support (LH)
5.
Engine mounting bracket (LH)
6.
Rear torque rod
7.
Rear engine mounting bracket
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ENGINE ASSEMBLY
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[HRA2DDT]
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• Use either 2-pole lift type or separate type lift as best you can. If board-on type is used for unavoid-
able reasons, support at the rear axle jacking point with a transmission jack or similar tool before
starting work, in preparation for the backward shift of center of gravity.
• For supporting points for lifting and jacking point at rear axle, refer to
NOTE:
When removing components such as hoses, tubes / lines, etc., cap or plug openings to prevent fluid from spill-
ing.
REMOVAL
Outline
Remove the engine and the transaxle assembly from the vehicle downward. Separate the engine and the tran-
saxle.
Preparation
1.
Release fuel pressure.
2.
Drain engine coolant from radiator. Refer to
CAUTION:
• Perform this step when the engine is cold.
• Never spill engine coolant on drive belt.
3.
Remove the following parts.
• Engine undercover
• Front fender protector (RH and LH): Refer to
• Front road wheels and tires: Refer to
WT-60, "Removal and Installation"
(with TPMS) or
• Battery and battery tray: Refer to
PG-155, "Removal and Installation"
.
• Drive belt: Refer to
EM-21, "Removal and Installation"
• Air duct and air cleaner filter unit assembly: Refer to
.
• Air inlet hose and air inlet tube. Refer to
EM-27, "Removal and Installation"
• Remove intake manifold. Refer to
EM-25, "Removal and Installation"
• Radiator hose (upper and lower): Refer to
.
• Exhaust front tube: Refer to
.
Engine Room LH
1.
Disconnect all connections of engine harness around the engine mounting insulator (LH), and then tem-
porarily secure the engine harness onto the engine side.
CAUTION:
Protect connectors using a resin bag against foreign materials.
2.
Disconnect fuel feed hose at engine side.
3.
Disconnect heater hoses, and install plugs them to prevent engine coolant from draining.
4.
Disconnect control linkage from transaxle. Refer to
5.
Remove ground cable at transaxle side.
Engine Room RH
1.
Remove ground cable between front cover and vehicle.
2.
Alternator and alternator bracket; Refer to
CHG-28, "HRA2DDT : Removal and Installation"
.
3.
Disconnect reservoir tank hose.
4.
Remove A/C compressor with piping connected from the engine. Temporarily secure it on the vehicle side
with a rope to avoid putting load on it. (with A/C models) Refer to
Vehicle Underbody
1.
Remove front wheel sensor (LH and RH) for ABS from steering knuckle. Refer to
2.
Remove brake caliper assembly with piping connected from steering knuckle. Temporarily secure it on the
vehicle side with a rope to avoid load on it. Refer to
BR-37, "BRAKE CALIPER ASSEMBLY : Exploded
.
3.
Remove stabilizer connecting rod. Refer to
.
EM-54
< UNIT REMOVAL AND INSTALLATION >
[HRA2DDT]
ENGINE ASSEMBLY
4.
Remove steering knuckle mounting nuts and bolts. Refer to
.
5.
Disconnect steering outer socket. Refer to
.
6.
Remove drive shafts (LH and RH) and center bearing cover bracket. Refer to
. and
FAX-26, "Removal and Installation (RH)"
7.
Disconnect intermediate shaft to steering column assembly. Refer to
.
8.
Remove rear torque rod.
9.
Remove front suspension member. Refer to
10. Preparation for the separation work of transaxle is as follows:
• Remove transaxle joint bolts which pierce at oil pan (upper) lower rear side. Refer to
.
Removal
1.
Use a manual lift table caddy (commercial service tool) or equiv-
alently rigid tool such as a transmission jack. Securely support
bottom of the engine and the transaxle assembly.
CAUTION:
Put a piece of wood or something similar as the supporting
surface, secure a completely stable condition.
2.
Remove engine mounting insulator (RH) (1).
3.
Remove engine mounting insulator through bolt-securing nut
(A).
4.
Carefully lower jack, or raise lift to remove the engine and the transaxle assembly.
CAUTION:
• Make sure that no part interferes with the vehicle side.
• Before and during this lifting, always check if any harnesses are left connected.
• During the removal, always be careful to prevent the vehicle from falling off the lift due to
changes in the center of gravity.
• If necessary, support the vehicle by setting jack or suitable tool at the rear.
Separation
1.
Install engine slinger to cylinder head front left side (1) and rear
right side (2).
2.
Remove starter motor. Refer to
STR-24, "HRA2DDT : Exploded View"
.
3.
Lift with a hoist and separate the engine from the transaxle assembly.
PBIC1190E
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ENGINE ASSEMBLY
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INSTALLATION
Note the following, and install in the reverse order of removal.
• Do not allow engine oil to get on engine mounting insulator. Be careful not to damage engine mounting insu-
lator.
• Make sure that each mounting insulator is seated properly, and tighten mounting nuts and bolts.
• Tighten engine mounting insulator (RH) bolts.
Inspection
INFOID:0000000010282243
INSPECTION AFTER INSTALLATION
Inspection for Leaks
• 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.
• Warm up engine thoroughly to make sure there is no leakage of fuel, exhaust gases, or any oil/fluids includ-
ing 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.
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
Transmission / transaxle
fluid
MT Models
Level / Leakage
Leakage
Level / Leakage
Other oils and fluid*
Level
Leakage
Level
Fuel
Leakage
Leakage
Leakage
Exhaust gases
—
Leakage
—
EM-56
< UNIT DISASSEMBLY AND ASSEMBLY >
[HRA2DDT]
ENGINE STAND SETTING
UNIT DISASSEMBLY AND ASSEMBLY
ENGINE STAND SETTING
Setting
INFOID:0000000010282244
NOTE:
Explained here is how to disassemble with engine stand supporting transmission surface. When using differ-
ent type of engine stand, note with difference in steps and etc.
1.
Remove the engine and the transaxle assembly from the vehicle, and separate the transaxle from the
engine. Refer to
2.
Remove clutch cover and clutch disc. Refer to
CL-22, "HRA2DDT : Removal and Installation"
.
3.
Remove flywheel.
• Secure flywheel with a stopper plate [SST: — (Mot.1431)], and remove mounting bolts.
CAUTION:
• Never disassemble flywheel.
• Never place flywheel with signal plate facing down.
• When handling signal plate, take care not to damage or scratch it.
• Handle signal plate in a manner that prevents it from becoming magnetized.
4.
Lift the engine with a hoist to install it onto widely use engine stand.
CAUTION:
• Use the engine stand that has a load capacity [approximately 135 kg (298 lb) or more] large
enough for supporting the engine weight.
• If the load capacity of stand is not adequate, remove the following parts beforehand to reduce the poten-
tial risk of overturning stand.
- Intake manifold: Refer to
- Exhaust manifold: Refer to
- Rocker cover: Refer to
NOTE:
The figure shows an example of widely use engine stand that
can support mating surface of transaxle with flywheel removed.
CAUTION:
Before removing the hanging chains, make sure the engine
stand is stable and there is no risk of overturning.
5.
Drain engine oil. Refer to
.
CAUTION:
Be sure to clean drain plug and install with new drain plug washer.
PBIC0085E
ENGINE UNIT
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< UNIT DISASSEMBLY AND ASSEMBLY >
[HRA2DDT]
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ENGINE UNIT
Disassembly
INFOID:0000000010282245
1.
Remove intake manifold. Refer to
2.
Remove exhaust manifold. Refer to
.
3.
Remove oil pan (lower). Refer to
4.
Remove ignition coil, spark plug and rocker cover. Refer to
.
5.
Remove fuel injector and fuel tube. Refer to
6.
Remove timing chain. Refer to
.
7.
Remove camshaft. Refer to
8.
Remove cylinder head. Refer to
Assembly
INFOID:0000000010282246
Assembly is the reverse order of disassembly.
EM-58
< UNIT DISASSEMBLY AND ASSEMBLY >
[HRA2DDT]
TIMING CHAIN
TIMING CHAIN
Exploded View
INFOID:0000000010282228
1.
Front cover
2.
Front cover bolt
3.
Front oil seal
4.
Front cover bolt
5.
Front cover bolt
6.
Front cover bolt
7.
Front cover bolt
8.
Camshaft dephaser oil cover gasket
9.
Camshaft dephaser oil cover
10. Camshaft dephaser oil cover bolt
11. Camshaft dephaser oil cover seal
12.
Exhaust valve timing control sole-
noide valve.
13.
Exhaust valve timing control sole-
noide valve.
14. Engine slinger bolts
15. Engine slinger
16. Engine mounting bracket (RH)
17. Rocker cover
18. Front cover dowel pin
19. Camshaft sprocket bolt
20. Timing chain
21. Exhaust camshaft sprocket
22. Exhaust camshaft
23. Intake camshaft
24. Intake camshaft sprocket
25. Crankshaft
26. Crankshaft sprocket key
27. Oil pump drive chain tensioner
28. Oil pump
29. Oil pumpdrive chain
30. Timing chain tension guide
31. Oil pump sprocket
32. Timing chain tension guide bolt
33. Oil pump chain tensioner shaft
34. Timing chain tensioner
35. Timing chain tensioner bolts
36. Intake valve timing control solenoide
valve
E1BIA1016GB
TIMING CHAIN
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< UNIT DISASSEMBLY AND ASSEMBLY >
[HRA2DDT]
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for symbol marks in the figure.
Removal and Installation
INFOID:0000000010282229
CAUTION:
The rotation direction indicated in the text indicates all directions seen from the engine front direction.
REMOVAL
1.
Remove the following parts:
• rocker cover. Refer to
• water pump pulley. Refer to
• Idler roller. Refer to
2.
Remove:
• intake valve timing control solenoide valve (1).
• exhaust valve timing control solenoide valve (2).
• intake camshaft dephaseur oil cover (3).
• exhaust camshaft dephaseur oil cover (4).
3.
Remove crankshaft pulley with the following procedure.
a.
Remove flywheel cover.
b.
Lock the flywheel (1) using a flat blade screw driver.
c.
Remove cranckshaft pulley.
4.
Remove front cover with the following procedure:
37. Intake valve timing control solenoide
valve.
38. Front cover seal
39. Timing chain tension guide shaft
A.
Tightening must be done following the installation procedure.
Refer to
EM-59, "Removal and Installation"
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EM-60
< UNIT DISASSEMBLY AND ASSEMBLY >
[HRA2DDT]
TIMING CHAIN
a.
Loosen bolts in the reverse of the order as shown in the figure.
b.
Separate the front cover using a flat blade screw driver (1).
CAUTION:
Be careful not to damage the matting surface.
c.
Remove front cover using seal cutter [SST: KV10111100].
CAUTION:
Be careful not to damage front cover.
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TIMING CHAIN
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< UNIT DISASSEMBLY AND ASSEMBLY >
[HRA2DDT]
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5.
Remove front oil seal from front cover. Refer to
EM-87, "FRONT OIL SEAL : Removal and Installation"
• Remove by lifting it up using a suitable hose.
CAUTION:
Be careful not to damage front cover.
6.
Check that the mark (1) on the exhaust camshaft timing sprocket and the mark (2) on the intake camshaft
timing sprocket are positioned as shown in the figure.
NOTE:
If the marks are not set correctly turn the engine until having
same position as shown in the figure.
7.
Remove chain tensioner (1) with the following procedure.
a.
Fully push down the chain tensioner lever (A), and then push the
plunger (C) into the inside of tensioner.
• The tab (B) is released by fully pushing the lever down. As a
result, the plunger can be moved.
b.
Pull up the lever to align its hole position with the body hole posi-
tion.
• When the lever hole is aligned with the body hole position, the
plunger is fixed.
• When the protrusion parts of the plunger ratchet and the tab
face each other, both hole positions are not aligned. At that
time, correctly engage them and align these hole positions by
slightly moving the plunger.
c.
Insert the stopper pin (D) into the body hole through the lever hole, and then fix the lever at the upper
position.
• Figure shows the example that a hexagonal wrench for 2.5 mm (0.098 in) is used.
d.
Remove chain tensioner.
E1BIA1054ZZ
PBIC3713E
EM-62
< UNIT DISASSEMBLY AND ASSEMBLY >
[HRA2DDT]
TIMING CHAIN
8.
Remove the timing chain tension guide (2) and the timing chain
slack guide (1).
9.
Remove the timing chain (2).
• Pull the looseness of timing chain toward the camshaft
sprocket (EXH) (1), and then remove the timing chain and
start the removal from camshaft sprocket (EXH) side.
CAUTION:
Never rotate crankshaft or camshaft while timing chain is
removed. It causes interference between valve and piston.
10. Remove the crankshaft sprocket and the oil pump drive related parts with the following procedure.
a.
Remove chain tensioner (1).
• Pull out from the shaft (B) and spring fixing holes (A).
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TIMING CHAIN
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[HRA2DDT]
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b.
Hold the top of the oil pump shaft, and then loosen the oil pump
sprocket nuts and remove them.
c.
Remove the crankshaft sprocket (1), the oil pump drive chain
(2), and the oil pump sprocket (3) at the same time.
INSTALLATION
NOTE:
The figure shows the relationship between the matching mark on
each timing chain and that on the corresponding sprocket, with the
components installed.
1.
Install the crankshaft sprocket and the oil pump drive related parts with the following procedure:
JPBIA4230ZZ
1
: Timing chain
2
: Timing chain slack guide
3
: Chain tensioner
4
: Oil pump drive chain
5
: Oil pump sprocket
6
: Crankshaft sprocket
7
: Timing chain tension guide
8
: Camshaft sprocket (INT)
9
: Camshaft sprocket (EXH)
A
: Matching mark (Peripheral groove)
B
: Crankshaft key (Point straight up)
C
: Matching mark (Stamp)
D
: Colored link
E
: Matching mark (Peripheral groove)
F
: Colored link
G
: Colored link
E1BIA1085ZZ
EM-64
< UNIT DISASSEMBLY AND ASSEMBLY >
[HRA2DDT]
TIMING CHAIN
a.
Install the crankshaft sprocket (1), the oil pump drive chain (2),
and the oil pump sprocket (3) at the same time.
• Install the crankshaft sprocket so that its invalid gear area (A)
is towards the back of the engine.
• Install the oil pump sprocket so that its hexagonal surface
faces (B) the front of engine.
NOTE:
There is no matching mark in the oil pump drive related parts.
b.
Hold the top of the oil pump shaft, and then tighten the oil pump
sprocket nuts.
c.
Install chain tensioner (1).
• Insert the body into the shaft (B) while inserting the spring into
the fixing hole (A) of cylinder block front surface.
• Check that the tension is applied to the oil pump drive chain
after installing.
2.
Install timing chain with the following procedure.
• Install by aligning matching marks on each sprocket and tim-
ing chain.
• If these matching marks are not aligned, rotate the camshaft
slightly to correct the position.
CAUTION:
• For the following note, after the matching marks are aligned, keep them aligned by holding them
with a hand.
• To avoid skipped teeth, never rotate crankshaft and camshaft until front cover is installed.
: Engine front
PBIC3719E
1
: Crankshaft sprocket
2
: Oil pump drive chain
3
: Oil pump sprocket
JPBIA4230ZZ
JPBIA4143ZZ
1
: Colored link
2
: INT matching mark (Peripheral groove)
3
: EXH matching mark (Peripheral groove)
4
: Crankshaft matching mark (Stamp)
E1BIA1063ZZ
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