Qashqai J11. Engine mechanical (HRA2DDT, K9K, MR20DD) — part 20
TIMING BELT
EM-305
< REMOVAL AND INSTALLATION >
[K9K]
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TIMING BELT
Exploded View
INFOID:0000000010287219
Refert to
for symbol marks in the figure
Removal and Installation
INFOID:0000000010287220
CAUTION:
• Apply new engine oil to parts marked in illustration before installation.
• Replace any belt that has been removed.
• Never turn the engine in the direction opposite to that of normal operation.
• When replacing the timing belt, be sure to replace the timing belt tensioner.
• Never run the engine without the drive belts to avoid damaging the crankshaft pulley.
REMOVAL
1.
Disconnect battery cable from the negative terminal.
2.
Remove front wheel RH.
3.
Remove fender protector RH. Refer to
4.
Remove drive belt, and auto-tensioner. Refer to
EM-273, "Removal and Installation"
5.
Remove RH engine torque rod.
JPBIA3140GB
1.
Timing belt inner cover
2.
Timing belt
3.
Camshaft sprocket
4.
Timing belt tensioner
5.
Timing belt upper cover
6.
Timing belt lower cover
7.
Cylinder head suspended bracket
8.
Crankshaft pulley
9.
Crankshaft sprocket
10. Rear oil seal
11.
Rear oil seal retainer
12. Gasket
A
Comply with the assembly proce-
dure when tightening. Refer to
B
Comply with the assembly proce-
dure when tightening. Refer to
EM-306
< REMOVAL AND INSTALLATION >
[K9K]
TIMING BELT
6.
Remove RH engine mounting.
7.
Remove RH engine mounting support bracket and RH engine mounting insulator.
8.
Remove upper timing cover, camshaft position sensor and cylin-
der head suspended mounting bracket.
9.
Remove timing belt lower cover.
10. Remove the TDC pin bolt.
11. Rotate the crankshaft clockwise, until the position (A) of the
camshaft pulley becomes opposite of the position (B) on the cyl-
inder head.
MBIB1041E
MLIA0003E
MBIB0392E
MBIB1923E
TIMING BELT
EM-307
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[K9K]
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12. Insert TDC set pin [SST: KV113B0110 (Mot. 1430)] (A) into the
camshaft pulley and cylinder head hole.
13. Screw in the TDC pin (special service tool).
14. Turn the engine clockwise (timing side) until the crankshaft
reaches the TDC pin (special service tool).
15. The pin [SST: KV113B0110 (Mot. 1430)] (A) must engage in the
camshaft pulley and cylinder head holes.
16. Insert flat-bladed screwdriver into the place of crankshaft posi-
tion sensor to block crankshaft and loosen crankshaft pulley bolt
(1).
17. Remove crankshaft pulley.
CAUTION:
Never remove fixing bolts. Keep loosened fixing bolts in
place to protect removed crankshaft pulley from dropping.
MBIB1924E
MBIB0394E
MBIB0395E
MBIB1924E
MBIB1925E
EM-308
< REMOVAL AND INSTALLATION >
[K9K]
TIMING BELT
18. Slacken the timing belt by loosening the bolt of tensioner (1),
then remove timing belt.
INSTALLATION
Install in the reverse order of removal paying attention to the following.
TIMING ADJUSTMENT
CAUTION:
It is essential to degrease the end of the crankshaft, the bore of the crankshaft sprocket and the bear-
ing faces of the drive belt pulley to prevent any slip between the timing and the crankshaft which
would risk destroying the engine.
1.
Install timing belt tensioner.
NOTE:
Put the timing belt tensioner spigot (1) in the cylinder head
groove.
2.
Insert Tool KV113B0110 (Mot. 1430) (A) in the camshaft pulley
and cylinder head holes.
3.
Check that the mark on the high pressure pump pulley (2) has
shifted one tooth to the right of vertical axle.
4.
Turn crankshaft to set Tool KV113B0130 (Mot. 1489) (the crank-
shaft groove (1) must be facing upwards).
5.
Tighten old crankshaft pulley bolt with a spacer (1) (which does
not cover the timing sprocket mark).
MBIB1926E
MBIB1927E
MBIB1928E
MBIB1929E
TIMING BELT
EM-309
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6.
Insert tool KV113B0130 (Mot. 1489) to crankshaft.
7.
Remove one wheel bolt from crankshaft pulley, and then loosen
the other two bolts (1).
8.
Install the timing belt, aligning the marks on the belt with those on the camshaft and fuel injection pump
sprockets (19 teeth spaces on the belt between the marks on the camshaft and pump sprockets).
9.
Using a 6 mm (0.24 in) Allen key, move the movable index (F) of
the tension wheel into the position shown below, by turning the
key counterclockwise.
10. Tighten the tension wheel bolt.
11. Check that the camshaft pulley wheel bolts are not fully up against the camshaft pulley wheel.
12. Install and tighten camshaft pulley wheel bolt.
13. Remove Tool KV113B0130 (Mot. 1489) and Tool KV113B0110 (Mot. 1430).
MBIB0395E
MBIB1930E
MBIB0509E
: 27 N·m (2.8 kg-m, 20 ft-lb)
: 14 N·m (1.4 kg-m, 10 ft-lb)
EM-310
< REMOVAL AND INSTALLATION >
[K9K]
TIMING BELT
14. Turn the crankshaft two full turns in a clockwise direction (timing
side). Just before the hole (A) of the camshaft pulley is opposite
the cylinder head hole (B), insert tool KV113B0130 (Mot. 1489)
into the cylinder block.
15. Then turn the crankshaft slowly and smoothly against TDC set
pin.
16. Insert TDC set pin [SST: KV113B0110 (Mot. 1430)] (A).
If the pin cannot be inserted, perform the following.
a.
Remove TDC set pin [SST: KV113B0130 (Mot. 1489)].
b.
Loosen camshaft pulley wheel bolts.
c.
Turn camshaft pulley to adjust.
d.
Confirm that the crankshaft sprocket groove is facing upward.
e.
Loosen timing belt tensioner bolt.
f.
Move the movable index of the drive belt tensioner into the posi-
tion as shown in the figure, by turning the key clockwise.
g.
Tighten timing belt tensioner bolt.
h.
Install and tighten camshaft sprocket wheel bolts.
i.
Turn the crankshaft two revolutions in a clockwise direction (tim-
ing side). Just before the hole (A) of the camshaft pulley is oppo-
site the cylinder head hole (B), insert TDC set pin [SST:
KV113B0130 (Mot. 1489)] into the cylinder block.
j.
Then turn the crankshaft slowly and smoothly against TDC set
pin.
17. Install crankshaft pulley (1), and tighten the bolts as follows:
a.
Tighten the bolt.
b.
Turn the bolt 95 degrees
±
15 degrees clockwise (angle tighten-
ing).
MBIB1923E
MBIB1924E
: 27 N·m (2.8 kg-m, 20 ft-lb)
: 14 N·m (1.4 kg-m, 10 ft-lb)
MBIB0511E
MBIB1923E
: 120 N·m (12 kg-m, 89 ft-lb)
MBIB1925E
TIMING BELT
EM-311
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18. Remove TDC set pin [SST: KV113B0130 (Mot. 1489)] and TDC set pin [SST: KV113B0110 (Mot. 1430)].
19. Apply liquid gasket to the thread of TDC pin plug.
20. Install TDC pin plug.
21. Install the cylinder head suspended bracket.
22. Install the lower timing cover by positioning the tab (M) into the
hole (N) on the inner timing cover.
: 20 N·m (2.0 kg-m, 15 ft-lb)
: 21 N·m (2.1 kg-m, 15 ft-lb)
MBIB0512E
MBIB0513E
EM-312
< REMOVAL AND INSTALLATION >
[K9K]
TIMING BELT
23. Install the upper timing cover.
24. Install the water pipe.
25. Install the two water hoses.
26. Install the drive belt.
CAUTION:
• Make sure belt is correctly engaged with the pulley groove.
• Check for oil and coolant on belt and each pulley groove.
27. Make sure that tension of each belt is within the standard.
MBIB0514E
MBIB0515E
: 22 N·m (2.2 kg-m, 16 ft-lb)
MBIB0356E
CAMSHAFT
EM-313
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CAMSHAFT
Exploded View
INFOID:0000000010282092
Removal and Installation
INFOID:0000000010282093
CAUTION:
Apply new engine oil to parts marked in illustration before installation.
REMOVAL
1.
Remove the following parts.
• Battery ground cable
• Undercover
• RH front wheel
• RH head light assembly
2.
Remove right side splash cover.
3.
Remove engine cover.
4.
Remove air inlet tube and electric throttle control actuator. Refer to
5.
Remove vacuum pump. Refer to
6.
Remove drive belt. Refer to
7.
Remove rocker cover. Refer to
EM-303, "Removal and Installation"
8.
Support underneath of engine by setting a manual lift table caddy (commercial service tool) or equivalent
tool.
CAUTION:
1.
Camshaft sprocket stud bolt
2.
Camshaft sprocket
3.
Oil seal
4.
Camshaft bracket
5.
Camshaft
6.
Cylinder head suspended bracket
7.
Valve lifter
8.
Cap
9.
Cylinder head
A.
30.0 N·m (3.1 kg-m, 22 ft-lb) and 86 degrees
Refer to
E1BIA0023GB
EM-314
< REMOVAL AND INSTALLATION >
[K9K]
CAMSHAFT
Put a piece of wood or something similar as supporting surface, secure a completely stable condi-
tion.
9.
Remove timing belt. Refer to
EM-305, "Removal and Installation"
10. Remove camshaft brackets.
11. Remove camshaft.
12. Remove valve lifter.
INSTALLATION
1.
Install valve lifter.
2.
Install camshaft.
3.
Install camshaft bracket and tighten bolts in numerical order as
shown in the figure.
4.
Screw the shouldered rod of camshaft seal insert [SST:
KV113B0230 (Mot. 1632)] onto the stud of the camshaft.
5.
Install the old seal on the camshaft.
6.
For the new seal, put the protector with the seal on the cam-
shaft, taking care not to touch the seal.
7.
Install the cover (E) and the collar nut (F) of camshaft seal insert
[SST: KV113B0230 (Mot. 1632)].
: 11 N·m (1.1 kg-m, 8 ft-lb)
E1BIA0050ZZ
MBIB0430E
MBIB0431E
MBIB0432E
CAMSHAFT
EM-315
< REMOVAL AND INSTALLATION >
[K9K]
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8.
Screw the collar nut until the cover touches the cylinder head.
9.
Install vacuum pump. Refer to
EM-292, "Removal and Installa-
10. Install camshaft sprocket and sprocket holder [SST: — (Mot.
1606-A)] (A).
11. Install timing belt. Refer to
EM-305, "Removal and Installation"
.
12. Install in the reverse order of removal.
Inspection
INFOID:0000000010282094
INSPECTION AFTER REMOVAL
Camshaft Runout
1.
Put V-block on a precise flat table, and support No. 2 and 4 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.
2.
Set dial indicator (A) vertically to No. 3 journal.
3.
Turn camshaft to one direction with hands, and measure the
camshaft runout on dial indicator. (Total indicator reading)
4.
If it exceeds the limit, replace camshaft.
Camshaft Cam Height
1.
Measure the camshaft cam height with a micrometer (A).
2.
If it exceeds the limit, replace camshaft.
Camshaft End Play
MBIB0433E
E1BIA0054ZZ
Standard
: Refer to
.
PBIC3177J
Standard
: Refer to
.
PBIC3178J
EM-316
< REMOVAL AND INSTALLATION >
[K9K]
CAMSHAFT
1.
Install the camshaft.
2.
Install the camshaft brackets.
3.
Check the end play.
Valve Lifter
1.
Measure outer diameter of valve lifter.
2.
Measure inner diameter of valve lifter hole in cylinder head.
3.
Calculate the valve lifter clearance.
(Valve lifter clearance) = (Valve lifter hole inner diameter) – (Valve lifter diameter)
Inspection and Adjustment
INFOID:0000000010282055
INSPECTION
1.
Place the valves of the cylinder concerned at the “end of
exhaust - beginning of intake” position and inspect the clearance
(X).
NOTE:
Dimension (Y) corresponds to the tappet thickness sizes (there
are 25 sizes at the service parts).
2.
Compare the values recorded with the values specified, then
replace the tappets which are not within tolerance.
ADJUSTMENT
1.
The camshaft must be removed to replace the tappets.
Determining dimension (Y).
2.
Set up the following assembly using dial gauge stand
[KV113B0050 (Mot. 252-01) (commercial service tool) or equiva-
lent tool] and dial gauge, then calibrate the gauge.
Standard
MBIB0420E
Intake and exhaust
: Refer to
Intake and exhaust
: Refer to
Intake and exhaust
: Refer to
Clearance, when the engine is cold:
MBIB0333E
MBIB0334E
CAMSHAFT
EM-317
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3.
Raise the gauge extension (without modifying the position of the
magnetic support/gauge assembly), then slide in the tappet to
be measured.
Note dimension (Y) and repeat the operation for the tappets
where the valve clearance is not within tolerance.
Select the various thicknesses of the tappet(s). The service
parts supplies 25 sizes of single-piece tappets. Refer to
.
MBIB0335E
EM-318
< UNIT REMOVAL AND INSTALLATION >
[K9K]
ENGINE ASSEMBLY
UNIT REMOVAL AND INSTALLATION
ENGINE ASSEMBLY
Exploded View
INFOID:0000000010282095
Removal and Installation
INFOID:0000000010282096
WARNING:
• Situate vehicle on a flat and solid surface.
• Place chocks at front and back of rear wheels.
• For engines not equipped with engine slingers, attach proper slingers and bolts described in PARTS
CATALOG.
CAUTION:
• Always be careful to work safely, avoid forceful or uninstructed operations.
• Do not start working until exhaust system and coolant are cool enough.
1.
Engine mount 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
Refer to
for symbols in the figure.
E1BIA1159GB
ENGINE ASSEMBLY
EM-319
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• If items or work required are not covered by the engine main body section, refer to the applicable
sections.
• Always use the support point specified for lifting.
• 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 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
Description of Work
Remove engine and transaxle assembly from vehicle downward. Separate engine and transaxle.
Preparation
Remove the following parts.
• Battery ground cable
• Undercover
• Right side splash cover
• LH/RH front wheel
• RH head light assembly
Engine Room
1.
Drain engine coolant. Refer to
.
CAUTION:
Perform when engine is cold.
2.
Remove engine cover.
3.
Remove air cleaner case and air duct (suction). Refer to
4.
Remove radiator upper hose. Refer to
5.
Remove reservoir tank and hoses.
6.
Remove fuel feed and return tubes.
7.
Remove vacuum hose.
8.
Remove turbocharger air duct. Refer to
9.
Disconnect heater hoses.
10. Disconnect engine room harness from the engine side and set it aside for easier work.
11. Disconnect transaxle side harness and clutch hose.
12. Disconnect drain hose transaxle side.
13. Disconnect shift cable and select cable. Refer to
TM-28, "Removal and Installation"
.
14. Loosen wire bracket.
15. Disconnect all the body-side vacuum hoses and air hoses at engine side.
16. Disconnect fuel feed and return hoses, and plug it to prevent fuel from draining.
Vehicle Underbody
1.
Remove drive shaft lock pin and lock nut. Refer to
FAX-22, "Removal and Installation (LH)"
"Removal and Installation (RH)"
.
2.
Remove ABS sensor from brake caliper.
3.
Remove strut lower bolts.
4.
Remove drive shaft assembly RH and LH.
5.
Remove drive belt. Refer to
EM-278, "Removal and Installation"
6.
Remove A/C compressor with piping connected from engine. Temporarily secure it on body with a rope to
avoid putting load on it.
7.
Remove exhaust front tube. Refer to
.
8.
Remove engine rear mounting bracket.
EM-320
< UNIT REMOVAL AND INSTALLATION >
[K9K]
ENGINE ASSEMBLY
9.
Remove front suspension member stay. Refer to
FSU-21, "Removal and Installation"
Removal
1.
Install engine slingers (1) into front right of cylinder head and
engine slinger (2) into rear left of cylinder head.
2.
Use a manual lift table caddy (commercial service tool) or equiv-
alently rigid tool such as a jack or trestle. Securely support bot-
tom of engine and transaxle.
CAUTION:
Put a piece of wood or something similar as the supporting
surface, secure a completely stable condition.
3.
Remove RH and LH engine mounting bolts.
4.
Remove engine and transaxle assembly from vehicle downward
by carefully operating supporting tools.
CAUTION:
• During the operation, make sure that no part interferes with body side.
• Before and during this lifting, always check if any harnesses are left connected.
• During the removal operation, always be careful to prevent vehicle from falling off the lift due to
changes in the center of gravity.
• If necessary, support vehicle by setting a jack or equivalent tool at the rear.
Separation Work
CAUTION:
During the operation, secure support the engine by placing a piece of wood under the engine oil pan,
transaxle oil pan and suspended the engine slinger by baby crane (movable hoist) etc.
1.
Remove starter motor.
2.
Separate engine and transaxle.
3.
Lift with a hoist and separate the engine from the transaxle assembly. Refer to
.
INSTALLATION
Install in the reverse order of removal.
• Do not allow oil to get on mounting insulator. Be careful not to damage mounting insulator.
• When installation directions are specified, install parts according to the direction marks on them referring to
components illustration.
• Make sure that each mounting insulator is seated properly, and tighten mounting bolts and nuts.
Inspection
INFOID:0000000010282097
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:
MBIB9022E
Items
Before starting engine
Engine running
After engine stopped
Engine coolant
Level
Leakage
Level
Engine oil
Level
Leakage
Level
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